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JPS63104969A - Sulfur-containing heterocyclic compound - Google Patents

Sulfur-containing heterocyclic compound

Info

Publication number
JPS63104969A
JPS63104969A JP61253158A JP25315886A JPS63104969A JP S63104969 A JPS63104969 A JP S63104969A JP 61253158 A JP61253158 A JP 61253158A JP 25315886 A JP25315886 A JP 25315886A JP S63104969 A JPS63104969 A JP S63104969A
Authority
JP
Japan
Prior art keywords
group
compound
methoxyphenyl
acetyl
lower alkyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP61253158A
Other languages
Japanese (ja)
Other versions
JPH0560833B2 (en
Inventor
Junichi Iwao
岩尾 順一
Tadashi Iso
磯 正
Yoichi Kawashima
洋一 河嶋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Santen Pharmaceutical Co Ltd
Original Assignee
Santen Pharmaceutical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Santen Pharmaceutical Co Ltd filed Critical Santen Pharmaceutical Co Ltd
Priority to JP61253158A priority Critical patent/JPS63104969A/en
Publication of JPS63104969A publication Critical patent/JPS63104969A/en
Publication of JPH0560833B2 publication Critical patent/JPH0560833B2/ja
Granted legal-status Critical Current

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  • Thiazole And Isothizaole Compounds (AREA)
  • Nitrogen- Or Sulfur-Containing Heterocyclic Ring Compounds With Rings Of Six Or More Members (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

NEW MATERIAL:A compound expressed by formula (R<1> is H, alkyl, alkoxy, halogen or nitro; R<2> is H, alkanoyl or alkyl; R<3> is R<1>; R<4> and R<5> are H or alkyl; R<6> is H, alkyl, phenyl or naphthyl; R<7> is alkyl, phenylalkoxy or phenyl; R<8> is H, alkyl, alkoxy, alkylthio, halogen, cyano or alkanoylamino; n is 0 or 1; X is S or CH2). EXAMPLE:(+)-3-Acetyl-2-[ 2-[ ( 2S )-1-benzyloxycarbonyl )pyrrolidin-2-ylcarbonyl oxy]-5-methoxyphenyl]benzothiazoline. USE:A synthetic intermediate for optically active compounds having calcium antagonistic action. PREPARATION:A racemic phenolic derivative expressed by formula II is reacted with an optically active carboxylic acid expressed by formula II to afford the aimed compound expressed by formula I.

Description

【発明の詳細な説明】[Detailed description of the invention]

「産業上の利用分野」 本発明化合物は新規化合物であり、その光学活性体はカ
ルシウム拮抗作用を有すふ光学活性なベンゾチアジン及
びベンゾチアゾリン化合物の合成中間体として有用なも
のである。 「従来の技術」 循環器官系疾患に有用なベンゾチアジン誘導体を開示し
た文献には、特開昭59−148771号、同60−1
56679号、同60−166674号があり、ベンゾ
チアゾリン誘導体につ−ては特開昭58−46079号
、同59−67276号、同60−139679号、同
61−83175号がある。これらの文献は光学活性体
を含む化合物を開示しており、光学活性体の製法として
は、クロマトグラフィーによる分離、光学活性な酸と塩
を形成させ分割する方法などが記載されて粘る。 「発明が解決しようとする問題点および問題を解決する
ための手段」 本発明者等らは光学活性なベンゾチアジンおよびベンゾ
チアゾリン誘導体を得る方法をさらに鋭意検討した結果
、下記式(Illで表わ嘔れる化合物から容易に導くこ
とができる事を見論出した。この式[I)で表わされる
化合物は新規化合物であり。 循環器官系疾患に有用なベンゾチアジンおよびベンゾチ
アゾリン誘導体の合成中間体として侵れて〔式中 R1
け水素原子、低級アルキル基、低級アルコキシ基、ハロ
ゲン原子″!たはニトロ基から選択ぢれる1個または複
数の基を示す。 R2は水素原子、低級アルカノイル基または低級アルキ
ル基を示す。 R3は水素原子、低級アルキル基、低級アルコキシ基、
ハロゲン原子またはニトロ基から選択されb1個1たけ
複数の基を示す。 R4およびR5け同一かまたは異なって、水素原子もし
くけ低級アルキル基を示す。 R’#−を水素原子、低級アルキル基、フェニル基また
けナフチル基を示し、フェニル基およびナフチル基は低
級アルキル基、低級アルコキシ基、ヒドロキシ基、ニト
ロ基またはハロゲン原子から選択される1個ま念は複数
の基で置換されていてもより0 R7は低級アルキル基、フェニルアルコキシ基またはフ
ェニル基を示し、フェニルアルコキシ基およびフェニル
基のフェニル環は低級アルキル基。 低級アルコキシ基、ニトロ基またはハロゲンM子から選
択される1個または複数の基で置換されていて本よい。 R8は水素原子、低級アルキル基、低級アルコキシi、
低iアルキルチオ基、ハロゲン原子、シアノ基または低
級アルカノイルアミン基を示す。 nはoiたIr1lft示す。 XけSまなFic鴇を示す。以下同じ。〕上記で規定し
之基をさらに(わしく説明すると。 低級アルキル基とはメチル基、エチル基、プロピル基、
ヘキシル基等の1〜6個の炭素原子を有するアルキル基
を示し、ハロゲン原子とはフッ素。 塩素、臭素等を示し、低級アルコキシ基とはメトキシ基
、エトキシ基、プロポキシ基、ヘキシルオキシ基等の1
〜6個の炭素原子を有するアルコキシ基を示し、低級ア
ルカノイル基とはアセチル基。 ゾロビオニル基、ヘキサノイル基等の1〜6fmの炭素
原子を有するアルカノイル基全示す。 本発明化合物は例えば、下記の方法によって製造するこ
とができる。すなわち、一般式[n)で示されるラセミ
フェノール体と一般式〔m〕で示される光学活性カルボ
ン酸を、混合酸無水物法、活性エステル法、DCC法等
によシ縮合でせた後、得られたエステルのジアステレオ
マー混合物を分別再結晶、カラムクロマトグラフィー等
の方法により分離し2本発明化合物〔工〕を得ることが
できる。 〔n )        〔111] 「作用」 本発明化合物CI)はアルカリ加水分解、あるいは還元
反応によって光学活性なフェノール体〔■〕に導くこと
ができる。 〔I〕 CP!〕 石らに、光学活性フェノール体CIV)は特開昭59−
67276号、特開昭59−148771号等に開示し
てηる方法に従って循環器官系疾患に有用なベンゾチア
ジン及びベンゾチアゾリン誘導体(式〔■〕)に導くこ
とができる。以下にその概略の一例を示す。 〔■〕〔v〕 VD 〔■〕 〔式中、R9,R1oFi同一か又は異なって水素原子
。 低級アルキル基、シクロアルキル基、低級アルカノイル
基、フェニルカルボニル基、フェニル基又は置換低級ア
ルキル基を示し、フェニル基は低級アルキル基、ヒドロ
キシ基、低級アルコキシ基。 低級アルキレンジオキシ基、ハロゲン原子、ニトロ基、
シアノ基又は低級アルカノイルオキシ基で置換式れでい
てもよい。置換低級アルキル基の置換基はヒドロキシ基
、フェニル基、フェニルオキシ基、フェニルカルボニル
基又はピリジル基を示し、該フェニル基、フェニルオキ
シ基、フェニルカルボニル基のフェニル環およびピリジ
ル基は更に低級アルキル基、ヒドロキシ基、低級アルコ
キシ基、低級アルキレンジオキシ基、)10ゲン原子。 ニトロ基、シアノ基又は低級アルカノイルオキシ基から
選択される1個又は複数の基で置換でれていてもよい。 又、R9とHloがいっしょになってモルホリン環、ピ
ペリジン環、ピペラジン環を形成してもよい。これらの
環は低級アルキル基、フェニル基、ヒドロキシ低級アル
キル基、フェニル低級アルキル基、フェニルカルボニル
基、フェニルカルボニル低級アルキル基、フェニル−(
ヒドロキシ)低級アルキル基を示し、該フェニル環は低
級アルキル基、低級アルコキシ基、低級アルキレンジオ
キシ基又はハロゲン原子で置換てれていてもよい。 Yはハロゲン原子、メタンスルホニルオキシ基またはヒ
ドロキシ基を示す。 Y′はハロゲン原子を示す。 2は1〜6個の炭素原子を有する直鎖又は分枝のアルキ
レンを示す。 mはO又は1を示す。 p#io又はl全示す。〕 「実施例」 実施例1 (+)及び←)−3−アセチル−2−C2−[(25)
−1−(ベンジルオキシカルボニル)ピロリジン−2−
イルカルボニルオキシ〕−5−メトキシフェニル〕ベン
ゾチアゾリン(、(+)体:化合物11m1゜(ハ)体
:化合物NIIL2)の製造 士−3−アセチル−2−(2−ヒドロキシ−5=メトキ
シフエニル)ベンゾチアゾリン(36,2y)の無水D
MF(1(10d)溶液を、60%水素化ナトリウム(
5,3y)の無水DMF (5M’)懸濁液に窒素雰曲
気下、水冷撹拌しながら滴下する。滴下終了後室温で3
0分間撹拌する(A液〕。 N−ベンジルオキシカルボニル−L−7’ロリン(32
,9f )の無水T)iF (200d )溶液に。 トリエチルアミン(18,4d )を加え、窒素雰曲気
下、塩−氷の寒剤で冷却しながら、クロル炭酸イソブチ
ル(17,1txt’)を滴下する。滴下終了後。 その温度でさらに40分間撹拌する。反応液をP遇し、
そのp液を塩−氷の寒剤で冷却したA液に加える。反応
液を室温で3時間撹拌後減圧濃縮し。 残渣を氷水ll中に注ぎ、酢酸エチルで抽出する。 有機層を水、飽和食塩水で洗浄後、無水硫酸マグネシウ
ムで脱水する。溶媒を減圧留去して得られる油状物をシ
リカゲルカラムクロマトで精製し。 (+)体15.6 f (収率24.0%)及び(ハ)
体] 3.Op(収率20.0%)f得る。 (+)体 Ctx〕D+ 362.6°(c=1.0.
メタノール)IR(KBr、am−’、以下特記なき限
シ同シ。)1763.1670,1498,1458,
1350゜1318.1297,1271.1178.
1129゜(へ)体 〔α〕D −459,5°(c=
1.0.メタノール)IR:1757,1667.14
86,1457゜1448.1375,1348,13
16,1296゜1270.1172,1126.74
3実施例2 (+)及び(ハ)−3−アセチル−2−[2−(2R1
4R)−3−アセチル−2−(l−ナフチル)チアゾリ
ジン−4−イルカルボニルオキシクー5−メトキシフエ
ニル〕ベンゾチアゾリン((+)体:化合物磁3.(ハ
)体:化合物阻4)の製造60%水素化ナトリウム(1
0,5y) の無水DMF(150rll)M濁液に、
m −3−7セ−y−/L/−2−(2−ヒドロキシ−
5−メトキシフェニル〕ベンゾチアゾリン(75,39
)の無水DMF(200d)溶液を水冷撹拌下滴下する
。滴下終了後水冷下さらに30分間撹拌したのち、スク
シンイミドC2R,4R)−3−7セチルー2−(l−
ナフチル)−4−チアゾリジンカルボキシレート(19
9,21?)の無水DMF (1,51)溶液を、一度
に加える0室温下2時間撹拌後氷水(約101)中に注
ぎ、酢酸エチルで抽出でる。有機層を飽和食塩水で洗浄
後、無水硫酸マグネシウムで脱水する。溶媒を減圧留去
して得られる油状物をシリ刀ゲルカラムクロマトで精製
し、(+)体58.Of! (収率40.0%)および
(→体39.5 f (収率27.oチ)を得る。 (+)体 融点:198.5〜199.5℃(アセトニ
トリル)〔α〕D +644.(1°(c=1.1.ク
ロロホルム)IR:1763,1644,1487,1
381゜1341.1322.1300.1273,1
23B。 1180.1133,1030,781,743(へ)
体 〔α〕D−78.0°(c==1.0.クロロホル
ム〕IR:1757,1649.1488,1458゜
1375.131g、1272.1172,1138゜
実施例3 (→及び(→−3−アセチルー2−C2−C< 2S 
。 4S)−3−アセチル−2−(2−メトキシフェニル)
チアゾリジン−4−イルカルボニルオキシクー5−メト
キシフエニル〕ベンゾチアゾリン((+)体:化合物N
ct5.(−3体:化合物階6)の製造C!:)−a−
アセチル−2−(2−ヒドロキシ−5−メ)キシフェニ
ル)ベンゾチアゾリン(3,9p)及びC23,45)
−3−アセチル−2−
"Industrial Application Field" The compound of the present invention is a new compound, and its optically active form is useful as a synthetic intermediate for optically active benzothiazine and benzothiazoline compounds having calcium antagonistic activity. "Prior Art" Documents disclosing benzothiazine derivatives useful for circulatory system diseases include JP-A-59-148771 and JP-A-60-1.
56679 and 60-166674, and regarding benzothiazoline derivatives, there are JP-A-58-46079, 59-67276, 60-139679, and 61-83175. These documents disclose compounds containing optically active substances, and the methods for producing optically active substances include separation by chromatography, separation by forming salts with optically active acids, and the like. "Problems to be Solved by the Invention and Means for Solving the Problems" The present inventors have further studied methods for obtaining optically active benzothiazine and benzothiazoline derivatives, and have found that the following formula (Ill) It was found that the compound represented by formula [I] is a new compound. It is used as a synthetic intermediate for benzothiazine and benzothiazoline derivatives useful for cardiovascular system diseases [in the formula R1
Represents one or more groups selected from a hydrogen atom, a lower alkyl group, a lower alkoxy group, a halogen atom or a nitro group. R2 represents a hydrogen atom, a lower alkanoyl group or a lower alkyl group. R3 represents a hydrogen atom, a lower alkanoyl group or a lower alkyl group. Hydrogen atom, lower alkyl group, lower alkoxy group,
b1 represents one or more groups selected from a halogen atom or a nitro group. R4 and R5 are the same or different and represent a hydrogen atom or a lower alkyl group. R'#- represents a hydrogen atom, a lower alkyl group, a phenyl group or a naphthyl group, and the phenyl group and the naphthyl group are one or more atoms selected from a lower alkyl group, a lower alkoxy group, a hydroxy group, a nitro group, or a halogen atom. R7 represents a lower alkyl group, a phenylalkoxy group or a phenyl group, and the phenyl ring of the phenylalkoxy group and the phenyl group is a lower alkyl group. It may be substituted with one or more groups selected from a lower alkoxy group, a nitro group, or a halogen group. R8 is a hydrogen atom, a lower alkyl group, a lower alkoxy i,
It represents a low i alkylthio group, a halogen atom, a cyano group, or a lower alkanoylamine group. n indicates oiIr1lft. Showing XkeS Mana Fic Toshi. same as below. ] The groups defined above are further defined (to explain in detail. Lower alkyl groups include methyl, ethyl, propyl,
It refers to an alkyl group having 1 to 6 carbon atoms such as a hexyl group, and the halogen atom is fluorine. Indicates chlorine, bromine, etc., and lower alkoxy groups include methoxy, ethoxy, propoxy, hexyloxy, etc.
It represents an alkoxy group having ~6 carbon atoms, and the lower alkanoyl group is an acetyl group. All alkanoyl groups having 1 to 6 fm carbon atoms such as zolobionyl group and hexanoyl group are shown. The compound of the present invention can be produced, for example, by the method described below. That is, after condensing the racemic phenol represented by the general formula [n] and the optically active carboxylic acid represented by the general formula [m] by a mixed acid anhydride method, an active ester method, a DCC method, etc., The diastereomer mixture of the obtained esters can be separated by methods such as fractional recrystallization and column chromatography to obtain the two compounds of the present invention. [n) [111] "Function" The compound CI) of the present invention can be converted into an optically active phenol compound [■] by alkaline hydrolysis or reduction reaction. [I] CP! ] Ishi et al. reported that the optically active phenolic substance CIV)
Benzothiazine and benzothiazoline derivatives (formula [■]) useful for circulatory system diseases can be derived according to the method disclosed in Japanese Patent Publication No. 67276, JP-A-59-148771, etc. An example of the outline is shown below. [■] [v] VD [■] [In the formula, R9 and R1oFi are the same or different and are hydrogen atoms. It represents a lower alkyl group, a cycloalkyl group, a lower alkanoyl group, a phenylcarbonyl group, a phenyl group, or a substituted lower alkyl group, and the phenyl group is a lower alkyl group, a hydroxy group, or a lower alkoxy group. Lower alkylene dioxy group, halogen atom, nitro group,
It may be substituted with a cyano group or a lower alkanoyloxy group. The substituent of the substituted lower alkyl group is a hydroxy group, phenyl group, phenyloxy group, phenylcarbonyl group, or pyridyl group, and the phenyl ring and pyridyl group of the phenyl group, phenyloxy group, and phenylcarbonyl group are further lower alkyl groups, Hydroxy group, lower alkoxy group, lower alkylene dioxy group,) 10 gene atoms. It may be substituted with one or more groups selected from a nitro group, a cyano group, or a lower alkanoyloxy group. Furthermore, R9 and Hlo may be combined to form a morpholine ring, a piperidine ring, or a piperazine ring. These rings are lower alkyl groups, phenyl groups, hydroxy lower alkyl groups, phenyl lower alkyl groups, phenylcarbonyl groups, phenylcarbonyl lower alkyl groups, phenyl-(
hydroxy) represents a lower alkyl group, and the phenyl ring may be substituted with a lower alkyl group, a lower alkoxy group, a lower alkylene dioxy group, or a halogen atom. Y represents a halogen atom, a methanesulfonyloxy group or a hydroxy group. Y' represents a halogen atom. 2 represents a straight-chain or branched alkylene having 1 to 6 carbon atoms. m represents O or 1. p#io or l is shown in full. ] “Example” Example 1 (+) and ←)-3-acetyl-2-C2-[(25)
-1-(benzyloxycarbonyl)pyrrolidine-2-
Manufacturer of ylcarbonyloxy]-5-methoxyphenyl]benzothiazoline (, (+) form: compound 11m1゜(c) form: compound NIIL2) -3-acetyl-2-(2-hydroxy-5=methoxyphenyl) ) Anhydrous D of benzothiazoline (36,2y)
MF (1 (10d) solution was dissolved in 60% sodium hydride (
5,3y) in anhydrous DMF (5M') under a nitrogen atmosphere while cooling with water and stirring. 3 at room temperature after completion of dropping.
Stir for 0 minutes (liquid A). N-benzyloxycarbonyl-L-7'loline (32
,9f) in anhydrous T)iF (200d) solution. Triethylamine (18,4d) is added, and isobutyl chlorocarbonate (17,1txt') is added dropwise under a nitrogen atmosphere while cooling with a salt-ice cryogen. After the dripping is finished. Stir at that temperature for an additional 40 minutes. Treat the reaction solution with P,
Add the P solution to A solution cooled with a salt-ice cryogen. The reaction solution was stirred at room temperature for 3 hours and then concentrated under reduced pressure. Pour the residue into 1 liter of ice water and extract with ethyl acetate. The organic layer is washed with water and saturated brine, and then dehydrated with anhydrous magnesium sulfate. The oil obtained by distilling off the solvent under reduced pressure was purified using silica gel column chromatography. (+) body 15.6 f (yield 24.0%) and (c)
body] 3. Op (yield 20.0%) f is obtained. (+) body Ctx]D+ 362.6° (c=1.0.
methanol) IR (KBr, am-', the same hereinafter unless otherwise specified) 1763.1670, 1498, 1458,
1350°1318.1297,1271.1178.
1129° (he) body [α]D -459,5° (c=
1.0. methanol) IR: 1757, 1667.14
86,1457°1448.1375,1348,13
16,1296°1270.1172,1126.74
3 Example 2 (+) and (c)-3-acetyl-2-[2-(2R1
4R)-3-acetyl-2-(l-naphthyl)thiazolidin-4-ylcarbonyloxycu-5-methoxyphenyl]benzothiazoline ((+) form: Compound 3. (C) form: Compound 4) Manufacture 60% sodium hydride (1
0.5y) in anhydrous DMF (150 rll) M suspension,
m -3-7se-y-/L/-2-(2-hydroxy-
5-Methoxyphenyl]benzothiazoline (75,39
) in anhydrous DMF (200d) was added dropwise to the mixture under water cooling and stirring. After the dropwise addition was completed, the mixture was further stirred for 30 minutes under water cooling, and then succinimide C2R,4R)-3-7 cetyl-2-(l-
naphthyl)-4-thiazolidinecarboxylate (19
9,21? ) in anhydrous DMF (1,51) is added at once and stirred at room temperature for 2 hours, then poured into ice water (approximately 101) and extracted with ethyl acetate. The organic layer is washed with saturated brine and then dehydrated with anhydrous magnesium sulfate. The oil obtained by distilling off the solvent under reduced pressure was purified using silica gel column chromatography to obtain (+) form 58. Of! (yield: 40.0%) and (→-isomer: 39.5 f (yield: 27.ochi). (1° (c=1.1.chloroform) IR: 1763, 1644, 1487, 1
381°1341.1322.1300.1273,1
23B. 1180.1133,1030,781,743(to)
Body [α]D-78.0° (c==1.0.Chloroform] IR: 1757, 1649.1488, 1458° 1375.131g, 1272.1172, 1138° Example 3 (→ and (→-3 -acetyl-2-C2-C<2S
. 4S)-3-acetyl-2-(2-methoxyphenyl)
Thiazolidin-4-ylcarbonyloxycu-5-methoxyphenyl]benzothiazoline ((+) form: Compound N
ct5. Production C of (-3 bodies: compound level 6)! :)-a-
Acetyl-2-(2-hydroxy-5-meth)xyphenyl)benzothiazoline (3,9p) and C23,45)
-3-acetyl-2-

【2−メトキシフェニル】−4−
チアゾリジンカルボン酸(4,Of )のDMF (2
0d)溶液に、N、N′−ジシクロへキシルカルボジイ
ミド(2−99)及U4−ジメチルアミノピリジン(0
,39f )を加える。 反応液を室温で1.5時間撹拌後、無水シュウ酸(0,
169)を加え室温でぢらに30分間撹拌し友後、析出
物を戸別する。p液に飽和重曹水を加え酢酸エチルで抽
出し、有機層を飽和重曹水1次論で飽和食塩水で洗浄後
無水硫酸マグネシウムで脱水する。溶媒を減圧留去し、
残渣にベンゼン−メタノール混液を加えて析出する結晶
を戸数し、←)体の結晶2.39 (収率32.0%)
を得る。 母液を減圧濃縮後/リカゲルカラムクロマトで精製し、
(+)体の粉末3.2 y(収率43.0%)を得る。 (+)体 〔α〕D +207.8°(c=1.0.ク
ロロホルム)IR:]758,1647,1596,1
587゜1487.1319,1296,1273,1
241゜1172.1139,1103,1022.7
46に)体 融点:222.5〜223.5°C(クロ
ロホルム−アセトニトリル〕 〔α〕 −576,5((H=l、Q、クロロホルム)
IR:1764,1647.1489.13g3゜13
24.1299.1271,1241,1182゜11
36.1025.750 同様にして以下の化合物が得られる。 (+)−3−アセチル−2−C2−CC2R,4R)−
3−ベンジルオキシカルボニル−2−ナフチルチアゾリ
ジン−4−イルカルボニルオキシシー5−メトキシフエ
ニル〕ベンゾチアゾリン(化合物隘7) 融点=126〜129℃(アセトニトリル)Crt〕:
” + 470.0°(c=1.9.クロロホルム)I
R: 3320.2916,1763,1683゜16
23.1571,1458,1381,1340゜13
07.1272,1139.745H−3−アセチル−
2−(2−((2R、4J? )−3−ベンジルオキシ
カルボニル−2−ナフチルチアゾリジン−4−イルカル
ボニルオキシシー5−メトキシフエニル〕ベンゾチアゾ
リン(化合物N18) 融点=97〜102℃(了セトニトリル)(α、:]D
   l l 7−2°(c=1.0.クロロホルム)
IR:3388.1759.]676.1489゜14
61.1379.13]3,1272,1173゜11
40.1026,776.744 (+3−3−アセチル−2−C2−C< 2J?、47
?)−3−ベンゾイル−2−(l−ナフチル)チアゾリ
ジン−4−イルカルボニルオキシ]−5−メトキシフェ
ニル〕ベンゾチアゾリン(化合9/Itkg)融点: 
145〜147℃(酢酸二チル−エタノール) CαlD+ 486.4°(c=1.0.クロロホルム
)IR:1764,1664,1629,1489゜1
462.1370,1346,13]7,1299゜1
273.1228,1179,1152.1124゜(
+)−3−アセチル−2−(2−C(2x、4n)−3
−ベンジルオキシカルボニル−2−(2−ヒドロキシフ
ェニル)チアゾリジン−4−イルカルボニルオキシシー
5−メトキシフエニル〕ペンツチアゾリンA(化合物隘
10) 融点:145〜147−5℃(ベンゼン−酢酸エチル) 〔α]D +392.9°(c=1.0.クロロホルム
)IR:336g、1685,1647,1491゜1
396.1350,1325,1273,1243゜1
227.1189,1177.746TLC:Rf O
,27(シリカゲル、n−ヘキサン−ベンゼン−酢酸エ
チル=1:5:1゜以下同じ) (+)−3−アセチル−2−C2−((2R,4R)−
3−ベンジルオキシカルボニル−2−(2−ヒドロキシ
フェニル)千アプリジンー4−イル刀ルボニルオキシ〕
−5−メトキシフェニル〕ベンゾチアゾリンB(化合物
磁11) 〔α〕D +174.7L′(c=0.5.クロロホル
ム)IR:1757,1673,1448.1319゜
1272.1244.1232,1129,1091゜
TLC:Rf 0.17 得られる2a[のジアステレオマーの旋光度〔α〕。 が同一の符号を示す場合は、シリカゲルTLC上。 n−ヘキサン−ベンゼン−酢酸エチル=1:5:1で展
開する時Rf値の大きいもの1kRf大、小さいものを
Rf小と記載。 (→−3−7セチルー2−C2−C(2x、4x>−3
−アセチル−2−フェニルチアゾリジン−4−(ルヵル
ボニルオキシ〕−5−メトキシフェニル〕ベンゾチアゾ
リン(化合物隘12)MA:212〜213℃(酢酸エ
チル−了セトニ  ト  リ  ル ) 〔α)D +531.4°(c=1.0.クロロホルム
)IR:3372,3124.2980.1762゜1
654.1457,1388.1325.1134H−
3−アセチル−2−C2−C: (2R,4R)−3−
アセチル−2−フェニルチアゾリジン−4−イルカルボ
ニルオキシヨー5−メトキシフエニル〕ベンゾチアゾリ
ン(化合物%13)融点:165〜167℃(イノプロ
ピルエーテル−ベンゼン〕 〔α:l   −358,3° (c=1.0.クロロ
ホlレム〕IR: 1752.1654.1462,1
380゜1342.1272.1150 (+1−3−アセチル−2−(2−C(2R,4R)−
3−ベンジルオキシカルボニル− トキシフェニル)チアゾリジン−4−イルカルボニルオ
キシ〕ー5ーメトキシフェニル〕ベンゾチアゾリン(化
合@NI114) 融点: 1 5 5.5〜157℃(酢酸エチル−アセ
トニトリル) 〔α)   +442.2°(c=1.0,クロロホl
レム)IR:1763,1 676、1 458,] 
385。 1352、1322.1140 (へ)−3−アセチル−2−C 2−C ( 2R,4
R)−3−ベンジルオキシカルボニル−2−(2−メト
キシフェニル)チアゾリジン−4−イルカルボニルオキ
シヨー5−メトキシフエニル〕ベンゾチアゾリン
[2-methoxyphenyl]-4-
Thiazolidinecarboxylic acid (4,Of) in DMF (2
0d) N,N'-dicyclohexylcarbodiimide (2-99) and U4-dimethylaminopyridine (0
, 39f). After stirring the reaction solution at room temperature for 1.5 hours, oxalic anhydride (0,
169) was added and stirred for 30 minutes at room temperature, and then the precipitate was removed. Add saturated aqueous sodium bicarbonate to the p solution, extract with ethyl acetate, wash the organic layer with saturated aqueous sodium bicarbonate and saturated brine, and then dehydrate over anhydrous magnesium sulfate. Remove the solvent under reduced pressure,
Add benzene-methanol mixture to the residue, count the number of crystals that precipitate, and obtain 2.39 crystals of ← (yield 32.0%)
get. After concentrating the mother liquor under reduced pressure/purifying it with licage gel column chromatography,
(+) powder 3.2 y (yield 43.0%) was obtained. (+) body [α]D +207.8° (c=1.0.chloroform) IR:]758,1647,1596,1
587°1487.1319,1296,1273,1
241°1172.1139,1103,1022.7
46) body Melting point: 222.5-223.5°C (chloroform-acetonitrile] [α] -576,5 ((H=l, Q, chloroform)
IR:1764,1647.1489.13g3゜13
24.1299.1271,1241,1182゜11
36.1025.750 The following compound is obtained in the same manner. (+)-3-acetyl-2-C2-CC2R,4R)-
3-benzyloxycarbonyl-2-naphthylthiazolidin-4-ylcarbonyloxy-5-methoxyphenyl]benzothiazoline (compound 7) Melting point = 126-129°C (acetonitrile) Crt]:
” + 470.0° (c=1.9.chloroform) I
R: 3320.2916, 1763, 1683°16
23.1571, 1458, 1381, 1340°13
07.1272,1139.745H-3-acetyl-
2-(2-((2R,4J?)-3-benzyloxycarbonyl-2-naphthylthiazolidin-4-ylcarbonyloxy-5-methoxyphenyl)benzothiazoline (Compound N18) Melting point = 97-102°C (Compound N18) Setonitrile) (α, :]D
l l 7-2° (c=1.0.chloroform)
IR:3388.1759. ]676.1489°14
61.1379.13] 3,1272,1173°11
40.1026,776.744 (+3-3-acetyl-2-C2-C< 2J?, 47
? )-3-benzoyl-2-(l-naphthyl)thiazolidin-4-ylcarbonyloxy]-5-methoxyphenyl]benzothiazoline (compound 9/Itkg) Melting point:
145-147°C (dityl acetate-ethanol) CαID+ 486.4° (c=1.0.chloroform) IR: 1764, 1664, 1629, 1489°1
462.1370,1346,13]7,1299゜1
273.1228, 1179, 1152.1124゜(
+)-3-acetyl-2-(2-C(2x,4n)-3
-benzyloxycarbonyl-2-(2-hydroxyphenyl)thiazolidin-4-ylcarbonyloxy-5-methoxyphenyl] pentthiazoline A (compound 10) Melting point: 145-147-5°C (benzene-ethyl acetate) [ α]D +392.9° (c=1.0.chloroform) IR: 336g, 1685, 1647, 1491°1
396.1350, 1325, 1273, 1243゜1
227.1189, 1177.746TLC:Rf O
, 27 (silica gel, n-hexane-benzene-ethyl acetate = 1:5:1°, the same below) (+)-3-acetyl-2-C2-((2R,4R)-
3-benzyloxycarbonyl-2-(2-hydroxyphenyl)thousandyloxycarbonyloxy]
-5-methoxyphenyl]benzothiazoline B (compound magnetic 11) [α]D +174.7L' (c=0.5.chloroform) IR: 1757, 1673, 1448.1319° 1272.1244.1232, 1129, 1091 °TLC: Rf 0.17 Optical rotation [α] of the diastereomer of 2a obtained. on silica gel TLC if show the same sign. When developing with n-hexane-benzene-ethyl acetate = 1:5:1, the one with a large Rf value is described as 1kRf high, and the one with a small Rf value is described as small Rf. (→-3-7 Cetyl-2-C2-C (2x, 4x>-3
-Acetyl-2-phenylthiazolidine-4-(carbonyloxy]-5-methoxyphenyl]benzothiazoline (compound 12) MA: 212-213°C (ethyl acetate-acetonitrile) [α) D +531 .4° (c=1.0.chloroform) IR: 3372, 3124.2980.1762°1
654.1457, 1388.1325.1134H-
3-acetyl-2-C2-C: (2R,4R)-3-
Acetyl-2-phenylthiazolidin-4-ylcarbonyloxyyo5-methoxyphenyl]benzothiazoline (compound% 13) Melting point: 165-167°C (inopropyl ether-benzene) [α: l -358,3° (c =1.0.chlorophorem]IR: 1752.1654.1462,1
380°1342.1272.1150 (+1-3-acetyl-2-(2-C(2R,4R)-
3-benzyloxycarbonyl-toxyphenyl)thiazolidin-4-ylcarbonyloxy]-5-methoxyphenyl]benzothiazoline (compound @ NI114) Melting point: 1 5 5.5-157°C (ethyl acetate-acetonitrile) [α) +442 .2° (c=1.0, chlorophor
Rem) IR: 1763, 1 676, 1 458,]
385. 1352, 1322.1140 (to)-3-acetyl-2-C2-C (2R,4
R)-3-benzyloxycarbonyl-2-(2-methoxyphenyl)thiazolidin-4-ylcarbonyloxy-5-methoxyphenyl]benzothiazoline

【化合
動磁15】 〔α)  −207.9°(c=1.0,クロロホルム
)IR:1763.1674,1489,1380。 1350、 1320, 1294, 1 273, 
] 242。 1227、1189,1172.1141,1102。 (+1−3−アセチル−2−1: 2−( ( 2R,
4R)−3−アセチル−2−(2−メトキシフェニル)
チアゾリジン−4−イルカルボニルオキシヨー5−メト
キシフエニル〕ベンゾチアゾリン(化合物lkL16) 融点=223〜224℃(酢酸エチル−エタノール) 〔α)  +507.0°(c=1.(1,クロロホル
ム)IR:  1763,1ft46.1487.14
59。 1383、1322,1273,1240.1182。 1134、1104,l 020,749H−3−アセ
チル−2−C 2−( ( 2R,4R )−3−アセ
チル−2−(2−メトキシフェニル)−チアゾリジン−
4−イルカルボニルオキシヨー5−メトキシフエニル〕
ベンゾチアゾリン(化合物阻17) 〔α)D−2 0 8.7°(c=1.0,クロロホル
ム)IR:1758.]654,1487,1459。 1377、1319,1273,1241,1171。 1138、1103,1021.745(+1−3−ア
セチル−2−C2−CC25,4B)−3−アセチル−
5.5−ジメチル−2−(2−メトキシフェニルフチア
ゾリジン−4−イルカルボニルオキシヨー5−メトキシ
フエニル〕ベンゾチアゾリン(化合物阻18) 〔α:]   +219.5°(c=1.1,クロロホ
ルム)IR:1752,1653,1647,1487
。 ]458,l:(76、1320,]273,1242
。 1171、1139,1105,1022.746に)
−3−アセチル−2−(:2−C <zs,4s)−3
−アセチル−5.5−ジメチル−2−(2−メトキシフ
ェニル)チアゾリジン−4−イルカルボニルオキシヨー
5−メトキシフエニル〕ベンゾチアゾリン(化合動磁1
9) 融点=194〜200℃(アセトニトリル)CaJD−
s 2 7.8°(c=1.o,クロロホルム〕IR:
1774,1670.1637.158B。 1483、1380.1301,1270,1240。 1123、1108,1023.745(+)−3−ア
セチル−2−[2−C (25,45)−3−ベンジル
オキシカルボニル−5.5−−)メチル−2−(2−メ
トキシフェニル)チアゾリジン−4−イルカルボニルオ
キシヨー5−メトキシフエニル〕ベンゾチアゾリン(化
合物1に20)〔α〕D +251.9°(C=1.0
,クロロホルム)IR:3388,2924.1750
,1675。 1587、1489,1458,1380.1320。 1275、1242,1173,1131,1024。 H−3−丁セチル−2−f:2−((25,45)−3
−ベンジルオキシ方ルボニルー5,5−ジメチル−2−
(2−メトキシフエニlしフチアゾリジン−4−イルカ
ルボニルオキシ〕−5−メトキシフェニル〕ベンゾチア
ゾリン(化合動磁21)〔αl:]D−399.7°(
c=1.1.クロロホルム)IR:3376.2920
.1764,1676゜1586.1488,1459
,1382,1321゜1273.1241,1177
.1131,1024゜(+)−3−アセチル−2−C
2−C(25,4S)−3−アセチル−5,5−ジメチ
ル−2−フェニルチアゾリジン−4−イルカルボニルオ
キシフ−5−メトキシフエニル〕ベンゾチアゾリン(化
合物を敏22) 〔α:lD+277.1°(c=1.0.クロロホルム
)IR:1751,1639.1487,1374゜1
320.1272,1171,1127,1026゜←
)−3−アセチル−2−(2−CC2s、4s>−3−
アセチル−5,5−ジメチル−2−フェニルチアゾリジ
ン−4−イルカルボニルオキシフ−5−メトキシフエニ
ル〕ベンゾチアゾリン−メタノール(1/l)(化合物
N123) 融点=125〜127℃(分解)(アセトニトリル−メ
タノール〕 (α)D−4g 7.9°(c=1.1.クロロホルム
)IR:1764,1637.14B5,1456゜1
375.1320,1271,1175,1123゜1
027.737 (+)−3−アセチル−2−C2−CC2S、4S)−
3−アセチル−2−フェニルチアソリシン−4−イルカ
ルボニルオキシ]−5−メトキシフェニル〕ベンゾチア
ゾリン(化合動磁24)Ca〕D+327.3°(c=
1.0.クロロホルム)IR:34]2,2920.l
’75g、1651゜1647.1461,1376.
1176.1137゜1027.744,726 (−1−3−アセチル−2−C2−〔(2S、4S)−
3−アセチル−2−フェニルチアソリシン−4−(ルカ
ルボニルオキシ〕−5−メトキシフェニル〕ベンゾチア
ゾリン(化合物1IkL25)融点:199〜202℃
(アセトニトリル)〔α)n   431−1’ (c
 =1−0−クロロホルム〕IR:3320.2920
.1763,1653゜1460.1388,1179
,1134,1029゜また、ω−3−アセチル−2−
(2−ヒドロキシ−5−メトキシフェニル)ベンゾチア
ゾリンのかわりに、C:)−’3.4−ジヒドロー2−
(2−ヒドロキシ−5−メトキシフェニル)−4−メチ
ル−3−オキソ−2)i−1,4−ベンゾチアジンを用
ηて、実施例1〜30方法と同様に操作して以下の化合
物を得る。 (−)−2−C2−C(2S、4S)−3−アセチル−
5,5−ジメチル−2−(2−メトキシフェニル)チア
ゾリジン−4−イルカルボニルオキシフ−5−メトキシ
フェニル)−3,4−ジヒドロ−4−メチル−3−オキ
ソ−2H−1,4−ベンゾチアジン(化合動磁26(R
f大)、化合物11kL27(Rf小))Rf大 C(
t〕D−108,6°(c = 1.0 、、クロロホ
ルム)IR: 1755,1646,1457.137
6゜1353.1328.1279,1242,118
9゜1136.1105,1024.748Rf小融点
:165〜166℃(n−ヘキサン−ベンゼン) 〔α]D −108,36(c=1.0.クロロホルム
)IR:1756,1653,1488.1457゜1
373.1331,1280.1244,1192゜1
177.1139,1106,1025.748(→−
2−C2−C(2R,4R)−3−アセチル−2−フェ
ニルチアゾリジン−4−イルカルボニルオキシフ−5−
メトキシフェニル]−3,4−ジヒドロ−4−メチル−
3−オキソ−2H−1,4−ベンゾチアジン(化合物%
28(Rf大)、化合動磁29(Rf小)) Rf大大魚点148〜150℃(n−ヘキサンーペンゼ
/) 〔α:lD+ ] l 7.9° (c=1.0.クロ
ロホルム)IR:1770.164B、1390,13
52゜1197,1141,751,727 Rf小 〔α:)D+0.8°(c=1.1.クロロホ
ルム〕IR: 1759.l 653,1383,13
51゜1194.1140.748 (+)−2−(2−C(zx、4x)−a−了セチル−
2−(2−ヒドロキシフェニル)チアゾリジン−4−イ
ルカルボニルオキシフ−5−メトキシフェニル)−3,
4−ジヒドロ−4−メチル−3−オキソ−2)1−1.
4−ベンゾチアジン(化合物N1130(Rf大)) 〔α〕っ +185.2°(c=1.o、クロロホルム
)IR:1759,1649.15B4,1457゜]
384,1348,1280.1242,1192゜1
135.1103,1022.748H−3,4−ジヒ
ドロ−2−〔2−((2S、4S)−3−アセチル−5
,5−ジメチル−2−フェニルチアゾリジン−4−イル
カルボニルオキシフ−5−メトキシフェニル〕−4−メ
チル−3−オキソ−214−1,4−ベンゾチアジン(
化合物N131CRf大)、化合動磁32(Rf小))
Rf大融点:202〜203.5℃(酢酸エチル)〔α
)  −67,6°(c=0.5.クロロホルム)IR
: 1771,1639,1448.] 358゜13
36.1290,1251,1176.1112゜10
30.731 Rf小融点:188〜189.5℃(n−へキサン−ベ
ンゼン) Ca〕D−86,7°(c=0.6.クロロホルム)I
R:]757,1652,1479,1447゜136
1.1329,1191.1173参考例1 (+)−3−丁セチル−2−(2−ヒドロキシ−5−メ
)キシフェニル)ベンゾチアゾリン(化合動磁33)の
製造 実施例2で得られる(+1−3−アセチル−2−〔2−
Ctzx、4x〕−a−アセチル−2−(1−ナフチル
)千アプリジンー4−イルカルボニルオキシ〕−5−メ
トキシフェニル〕ベンゾチアゾリン(化合物1kL3)
(28,Oy)のDMF(50011Il)fI!I液
に、水冷撹拌下、IN水酸化ナトリウム水溶液(144
m)を加え水冷下5分間9欠論で室温で15分間撹拌す
み。反応液に0.5 N塩@(1,5/ )を加え酢酸
エチルで抽出する。有機層を飽和重曹水、lNj!醗、
飽和食塩水の順に況浄したのち、無水硫酸マグネシウム
で脱水する。溶媒を減圧留去して得られる油状物にクロ
ロホルム−シクロヘキサンの混液を加え結晶を得、イソ
プロピルエーテルから再結晶して標記化合物13.39
・(収$ 92.0%)を得る。 融点:130〜] 31.5℃(イソプロピルエーテル
) 〔α)D+416.5°(c=1.0.クロロホルム)
IR:3332,1637,1502,1464゜14
29.1381,1351,1272.1202゜本化
f物(化合41ffFkL33 )は化合1m!kL3
のかわりに化化合動磁1.5,7,9,10,12,1
4゜16.1g、20.22″′!たは24を用論参考
例1と同様に操作することによっても得られる。 化合動磁3のかわシ〈化合物N12,4,6,8゜11
.13,15,17,19,21,23まなは25を用
す参考例1と同様に操作し、H−3−丁セチル−2−(
2−ヒドロキシ−5−メトキシフェニル)ベンゾチアゾ
リン(化合物N134)を得る。 融点:131.5〜133℃(酢酸エチル−n−ヘキサ
ン〕 (:α)  −436,2°(c=1.0.りooホル
ム)IR二3320. 1636. 1502. 14
63゜1429.137B、1349,1271,12
01゜化合動磁3のかわりに化合物N127.29また
は32を用す参考例1と同様に操作し、(+) −34
−ジヒドロ−2−(2−ヒドロキシ−5−メトキシフェ
ニル)−4−メチル−3−オキソ−2)1−1゜4−ベ
ンゾチアジン(化合物11&L35)を得る。 融点=162〜163℃(ベンゼン−n−へキサン) 〔α)D+38.9°(c=1.0.クロロホルム)I
R:3208.1624.1582,1428゜136
5.1264,1218.1200化合物磁3のかわシ
に化合動磁26,28.30また#−t31を用す参考
例1と同様に操作し、H−3,4−ジヒドロ−2−(2
−ヒドロキシ−5−メトキシフェニル)−4−メチル−
3−オキソ−2H−1,4−ベンゾチアジン(化合物1
虹36)を得る。 融点:160.0〜161”C(ベンゼン)〔α)  
−42,0°(c=1.3.クロロホルム)IR:32
04,1624,1579.1428゜1365.12
63.1199 参考例2 (+1−3−アセチル−2−〔5−メトヤシ−2−(4
−CN−メチル−N−(3,4,5−トリットキシフェ
ネチル〕アミノ〕ブトキシ〕フェニル〕ベンゾチアゾリ
ン塩酸塩(化合物11h37)の製造60チ水素化ナト
リウム(440M9)の無水DMF(10ゴ)懸濁液に
、水冷撹拌下、参考例1で得られた(+)−3−アセチ
ル−2−(2−ヒドロキシ−5−メトキシフェニル)ベ
ンゾチアゾリン(化合物ll&L33,3.01?)の
無水DMF (6d)溶液を滴下し、室温で10分間撹
拌する。反応液に1,4−ジブロモブタン(11,8r
nl)を加え。 室温で30分間撹拌後水中に注ぎ、エーテルで抽出する
。有機層を水、IN水酸化ナトIJウム、飽和食塩水の
順に洗浄後無水硫酸マグネシウムで脱水する。溶媒を減
圧留去して得られる油状物をシリカゲルカラムクロマト
で精製し、(+)−a−アセチル−2−(2−(4−ブ
ロモブトキシクー5−メトキシフエニル〕ベンゾチアゾ
リン3.80 ? (収率87.0%)を得る。 融点:84.5〜85.5℃(エタノール)〔α)D 
+649.3°(c=1.0 、クロロホルム)IR:
1674.3499,1463,1378゜1214.
1043.751 さらに、上で得られた(+)−ブロマイド(2,10y
)及びN−メチル−3,4,5−トリットキシフェネチ
ルアミン(1,20y)のDMF (7,:M)溶液に
炭酸方すウム1,30y1r:加え、60℃で2時間撹
拌する。反応混合物全水中に注ぎ、クロロホルムで抽出
し、有機層を水、飽和食塩水の順に洗浄後、無水硫酸マ
グネシウムで脱水する。溶媒を減圧留去して得られる油
状物をシリカゲルカラムクロマトで精製後、塩酸塩とし
、標記化合物2.30y(収率77.0チ)を得る。 〔α)  +446.9°(c=1.1.クロロホルム
)IR:1664,1589,1496,1462゜1
424.1377、]275,1236,1207゜同
様にして、(−)−3−アセチル−2−〔5−メトキシ
−2−C4−CN−メチル−N−(3,4゜5−トリッ
トキシフェネチル)アミノ〕ブトキシ〕フェニル〕ペン
ゾチ了ゾリン塩酸塩(化合動磁38)を、H−3−アセ
チル−2−(2−ヒドロキシ−5−メトキシフェニル)
ベンゾチアゾリン(化合物11&1L34)から得るこ
とができる。 (α’)D−441,2°(c=1.0.クロロホルム
)IR:1663,1589,1493,1460゜1
423.1376.1274,1235.1207゜参
考例3 (+)−3,4−ジヒドロ−2−〔5−メトキシ−2−
C3−CN−メチル−N −C2−r(3,4−メチレ
ンジオキシ)フェノキシ〕エチル〕アミノ〕プロポキシ
〕フェニル〕−4−メチル−3−オキ7−2H−1,4
−ベンゾチアジン フマル醒塩(化合動磁39)の製造 参考例1で得られた(+)−3,4−ジヒドロ−2−(
2−ヒドロキシ−5−メトキシフェニル)−4−メチル
−3−オキソ−2H−1,4−ベンゾチアジン(化合物
N135.1.00 y)、3−ブロモ−1−プロパツ
ール(0,46? )およびトリフェニルホスフィン(
0,87y)のTHF (20ttt’)溶液に、窒素
雰囲気下、アゾジカルボン酸ジエチル(0,5Wtl)
 1jr室温で滴下する。室温1時間撹拌後。 トリフェニルホスフィン(0,87y)およびアゾジカ
ルボン酸ジエチル(0,5d)を加える。さらに室温1
時間撹拌後1反応溶媒を減圧留去丁ゐ。 析出結晶をp別後、P液をシリカゲルカラムクロマトで
精製し、(+)−2−(2−(3−ブロモプロボキシ)
−5−メトキシフェニル]−3,4−ジヒドロ−4−メ
チル−3−オキソ−2H−1,4−ベンゾチアジン0.
56 ’;! (収率40.2%〕を得る。 融点: 78.0〜79.0℃(エタノール)〔α〕D
 +197.7°(c=1.0.クロロホルム)IR:
1647,1584.1492,1465゜1357.
1271,1240.1201,1148゜1045.
799,746 嘔らに、上で得られた(+)−ブロマイド(0,42f
)。 N−メチル−N−C2−CC3,4−メチレンジオキシ
)フェノキシ〕エチル〕アミン(0,20P)およびト
リエチルアミン(0,10’/ )のDMF (15−
)溶液全50℃で3時間撹拌する。反応混合物を水中に
注ぎ、酢酸エチルで抽出し、有機層を飽和食塩水で洗浄
後、無水硫酸マグネシウムで脱水する。溶媒を減圧留去
して得られる油状物をシリカゲルカラムクロマトで精製
後、フマル酸で処理し、標記化合物Q、45y(収率6
9.2チ)1−得る。 融点=133〜l 33,5℃(エタノール)〔α)D
+194.2°((!=1.0.ジメチルスルホキシド
) IR:1653,1470,1357,1267゜12
39.1183,1139.1106.1034゜同様
にして、H−3,4−ジヒドロ−2−(5−メトキシ−
2−1:3−(N−メチル−N−C2−C(3,4−メ
チレンジオキシ)フェノキシ〕エチル〕アミノ〕プロポ
キシ〕フェニル〕−4−メチル−3−オキソ−2H−1
,4−ベンゾチアジンフマル酸塩(化合物N140)を
、(ハ)−3,4−ジヒドロ−2−(2−ヒドロキク−
5−メトキシフェニル)−4−メチル−3−オキソ−2
H−1,4−ベンゾチアジン(化合動磁36)から得る
ことができる。 融点:133〜133.5℃(エタノール)〔α:1D
−195,5°(c=1.0.ジメチルスルホキシド) IR: 1653.1466.1357.1267゜1
239、1183.1139.1106.1033゜「
発明の効果」 本発明はカルシウム拮抗作用等を有する光学活性なベン
ゾチアジン及びベンゾチアゾリン化合−の有用な合成中
間体全提供するものである。
[Combined magnetism 15] [α) -207.9° (c=1.0, chloroform) IR: 1763.1674, 1489, 1380. 1350, 1320, 1294, 1 273,
] 242. 1227, 1189, 1172. 1141, 1102. (+1-3-acetyl-2-1: 2-( (2R,
4R)-3-acetyl-2-(2-methoxyphenyl)
Thiazolidin-4-ylcarbonyloxyyo-5-methoxyphenyl]benzothiazoline (compound lkL16) Melting point = 223-224°C (ethyl acetate-ethanol) [α) +507.0° (c = 1. (1, chloroform) IR : 1763, 1ft46.1487.14
59. 1383, 1322, 1273, 1240.1182. 1134,1104,l 020,749H-3-acetyl-2-C2-((2R,4R)-3-acetyl-2-(2-methoxyphenyl)-thiazolidine-
4-ylcarbonyloxyyo-5-methoxyphenyl]
Benzothiazoline (Compound 17) [α) D-2 0 8.7° (c=1.0, chloroform) IR: 1758. ] 654, 1487, 1459. 1377, 1319, 1273, 1241, 1171. 1138, 1103, 1021.745 (+1-3-acetyl-2-C2-CC25,4B)-3-acetyl-
5.5-dimethyl-2-(2-methoxyphenylphthiazolidin-4-ylcarbonyloxy-5-methoxyphenyl)benzothiazoline (compound 18) [α:] +219.5° (c=1.1, Chloroform) IR: 1752, 1653, 1647, 1487
. ]458,l:(76,1320,]273,1242
. 1171, 1139, 1105, 1022.746)
-3-acetyl-2-(:2-C <zs, 4s)-3
-acetyl-5,5-dimethyl-2-(2-methoxyphenyl)thiazolidin-4-ylcarbonyloxy-5-methoxyphenyl]benzothiazoline (compound magnetokinetic 1
9) Melting point = 194-200°C (acetonitrile) CaJD-
s 2 7.8° (c=1.o, chloroform) IR:
1774, 1670.1637.158B. 1483, 1380.1301, 1270, 1240. 1123, 1108, 1023.745(+)-3-acetyl-2-[2-C (25,45)-3-benzyloxycarbonyl-5.5--)methyl-2-(2-methoxyphenyl)thiazolidine -4-ylcarbonyloxyyo5-methoxyphenyl]benzothiazoline (20 to compound 1) [α]D +251.9° (C=1.0
, chloroform) IR: 3388, 2924.1750
, 1675. 1587, 1489, 1458, 1380.1320. 1275, 1242, 1173, 1131, 1024. H-3-chocetyl-2-f:2-((25,45)-3
-benzyloxycarbonyl-5,5-dimethyl-2-
(2-methoxyphenylphthiazolidin-4-ylcarbonyloxy]-5-methoxyphenyl]benzothiazoline (compound magnetism 21) [αl:] D-399.7° (
c=1.1. Chloroform) IR: 3376.2920
.. 1764,1676゜1586.1488,1459
,1382,1321゜1273.1241,1177
.. 1131,1024゜(+)-3-acetyl-2-C
2-C(25,4S)-3-acetyl-5,5-dimethyl-2-phenylthiazolidin-4-ylcarbonyloxyph-5-methoxyphenyl]benzothiazoline (Compound 22) [α: 1D+277. 1° (c=1.0.chloroform) IR: 1751, 1639.1487, 1374°1
320.1272,1171,1127,1026゜←
)-3-acetyl-2-(2-CC2s, 4s>-3-
Acetyl-5,5-dimethyl-2-phenylthiazolidin-4-ylcarbonyloxyph-5-methoxyphenyl]benzothiazoline-methanol (1/l) (compound N123) Melting point = 125-127°C (decomposition) (acetonitrile -methanol] (α) D-4g 7.9° (c=1.1.chloroform) IR: 1764, 1637.14B5, 1456°1
375.1320,1271,1175,1123゜1
027.737 (+)-3-acetyl-2-C2-CC2S,4S)-
3-acetyl-2-phenylthiasoricin-4-ylcarbonyloxy]-5-methoxyphenyl]benzothiazoline (combined magnetic flux 24)Ca]D+327.3° (c=
1.0. Chloroform) IR:34]2,2920. l
'75g, 1651°1647.1461,1376.
1176.1137°1027.744,726 (-1-3-acetyl-2-C2-[(2S,4S)-
3-Acetyl-2-phenylthiasoricin-4-(carbonyloxy]-5-methoxyphenyl]benzothiazoline (Compound 1IkL25) Melting point: 199-202°C
(acetonitrile) [α)n 431-1' (c
=1-0-chloroform]IR:3320.2920
.. 1763,1653゜1460.1388,1179
,1134,1029゜Also, ω-3-acetyl-2-
(2-hydroxy-5-methoxyphenyl)benzothiazoline instead of C:)-'3,4-dihydro2-
Using (2-hydroxy-5-methoxyphenyl)-4-methyl-3-oxo-2)i-1,4-benzothiazine, the following compounds are obtained by operating in the same manner as in Examples 1 to 30. . (-)-2-C2-C(2S,4S)-3-acetyl-
5,5-dimethyl-2-(2-methoxyphenyl)thiazolidin-4-ylcarbonyloxyph-5-methoxyphenyl)-3,4-dihydro-4-methyl-3-oxo-2H-1,4-benzothiazine (Combined dynamic magnetism 26 (R
f large), compound 11kL27 (Rf small)) Rf large C(
t]D-108,6° (c = 1.0, chloroform) IR: 1755, 1646, 1457.137
6゜1353.1328.1279,1242,118
9゜1136.1105,1024.748Rf Small melting point: 165-166℃ (n-hexane-benzene) [α]D -108,36 (c=1.0.chloroform) IR: 1756,1653,1488.1457゜1
373.1331, 1280.1244, 1192゜1
177.1139, 1106, 1025.748 (→-
2-C2-C(2R,4R)-3-acetyl-2-phenylthiazolidin-4-ylcarbonyloxyph-5-
methoxyphenyl]-3,4-dihydro-4-methyl-
3-oxo-2H-1,4-benzothiazine (compound %
28 (large Rf), combined magnetism 29 (small Rf)) Rf large large fish point 148-150°C (n-hexane-penze/) [α:lD+] l 7.9° (c=1.0.chloroform) IR: 1770.164B, 1390,13
52゜1197,1141,751,727 Rf small [α:)D+0.8°(c=1.1.Chloroform]IR: 1759.l 653,1383,13
51゜1194.1140.748 (+)-2-(2-C(zx,4x)-a-Ryocetyl-
2-(2-hydroxyphenyl)thiazolidin-4-ylcarbonyloxyph-5-methoxyphenyl)-3,
4-dihydro-4-methyl-3-oxo-2) 1-1.
4-Benzothiazine (compound N1130 (large Rf)) [α] +185.2° (c = 1.o, chloroform) IR: 1759, 1649.15B4, 1457°]
384,1348,1280.1242,1192゜1
135.1103,1022.748H-3,4-dihydro-2-[2-((2S,4S)-3-acetyl-5
,5-dimethyl-2-phenylthiazolidin-4-ylcarbonyloxyph-5-methoxyphenyl]-4-methyl-3-oxo-214-1,4-benzothiazine (
Compound N131CRf large), compound dynamic magnetism 32 (Rf small))
Rf large melting point: 202-203.5°C (ethyl acetate) [α
) -67,6° (c=0.5.chloroform) IR
: 1771, 1639, 1448. ] 358°13
36.1290,1251,1176.1112゜10
30.731 Rf low melting point: 188-189.5°C (n-hexane-benzene) Ca]D-86,7° (c = 0.6.chloroform) I
R:]757,1652,1479,1447°136
Reference Example 1 (+1 -3-acetyl-2-[2-
Ctzx, 4x]-a-acetyl-2-(1-naphthyl)thousandaplidin-4-ylcarbonyloxy]-5-methoxyphenyl]benzothiazoline (compound 1kL3)
(28, Oy) DMF (50011Il)fI! IN sodium hydroxide aqueous solution (144
Add m) and stir at room temperature for 5 minutes under water cooling for 15 minutes. Add 0.5N salt@(1,5/) to the reaction solution and extract with ethyl acetate. The organic layer was diluted with saturated sodium bicarbonate solution, lNj! Alcohol,
After cleaning with saturated saline solution, dehydrate with anhydrous magnesium sulfate. A mixture of chloroform and cyclohexane was added to the oil obtained by distilling off the solvent under reduced pressure to obtain crystals, which were recrystallized from isopropyl ether to obtain the title compound 13.39.
- Obtain (yield $92.0%). Melting point: 130~] 31.5°C (isopropyl ether) [α) D + 416.5° (c = 1.0.chloroform)
IR: 3332, 1637, 1502, 1464°14
29.1381,1351,1272.1202゜F compound (compound 41ffFkL33) is compound 1m! kL3
Instead, compound dynamic magnetism 1.5, 7, 9, 10, 12, 1
4゜16.1g, 20.22'''! or 24 can also be obtained by operating in the same manner as in Practical Reference Example 1. Compound N12,4,6,8゜11
.. H-3-chocetyl-2-(
2-Hydroxy-5-methoxyphenyl)benzothiazoline (compound N134) is obtained. Melting point: 131.5-133°C (ethyl acetate-n-hexane) (:α) -436,2° (c=1.0.riooform) IR23320.1636.1502.14
63°1429.137B, 1349,1271,12
01° Compound N127.29 or 32 was used instead of compound N127.29 or 32.
-dihydro-2-(2-hydroxy-5-methoxyphenyl)-4-methyl-3-oxo-2) 1-1°4-benzothiazine (compounds 11 & L35) are obtained. Melting point = 162-163°C (benzene-n-hexane) [α) D + 38.9° (c = 1.0.chloroform) I
R:3208.1624.1582,1428°136
5.1264, 1218.1200 Compound magnetic flux 26, 28.30 and #-t31 were used in the same manner as in Reference example 1, and H-3,4-dihydro-2-(2
-Hydroxy-5-methoxyphenyl)-4-methyl-
3-oxo-2H-1,4-benzothiazine (compound 1
Rainbow 36) is obtained. Melting point: 160.0-161"C (benzene) [α)
-42,0° (c=1.3.chloroform) IR:32
04,1624,1579.1428°1365.12
63.1199 Reference Example 2 (+1-3-acetyl-2-[5-methoyac-2-(4
-CN-Methyl-N-(3,4,5-tritoxyphenethyl]amino]butoxy]phenyl]benzothiazoline hydrochloride (compound 11h37) The (+)-3-acetyl-2-(2-hydroxy-5-methoxyphenyl)benzothiazoline (compound ll&L33, 3.01?) obtained in Reference Example 1 was added to the cloudy liquid under water-cooling and stirring in anhydrous DMF ( 6d) Add the solution dropwise and stir for 10 minutes at room temperature.Add 1,4-dibromobutane (11,8r
Add nl). After stirring for 30 minutes at room temperature, it is poured into water and extracted with ether. The organic layer was sequentially washed with water, IN sodium hydroxide, and saturated brine, and then dehydrated with anhydrous magnesium sulfate. The oily substance obtained by distilling off the solvent under reduced pressure was purified by silica gel column chromatography to obtain (+)-a-acetyl-2-(2-(4-bromobutoxycou-5-methoxyphenyl)benzothiazoline 3.80 ? (yield 87.0%) Melting point: 84.5-85.5°C (ethanol) [α)D
+649.3° (c=1.0, chloroform) IR:
1674.3499, 1463, 1378°1214.
1043.751 Furthermore, (+)-bromide (2,10y
) and N-methyl-3,4,5-tritoxyphenethylamine (1,20y) in DMF (7,:M), 1,30y1r of sodium carbonate was added, and the mixture was stirred at 60°C for 2 hours. The reaction mixture was poured into total water, extracted with chloroform, and the organic layer was washed with water and saturated brine in that order, and then dried over anhydrous magnesium sulfate. The oil obtained by evaporating the solvent under reduced pressure is purified by silica gel column chromatography and converted into a hydrochloride to obtain the title compound 2.30y (yield: 77.0y). [α) +446.9° (c=1.1.chloroform) IR: 1664, 1589, 1496, 1462°1
424.1377,]275,1236,1207゜Similarly, (-)-3-acetyl-2-[5-methoxy-2-C4-CN-methyl-N-(3,4゜5-tritoxyphenethyl ) Amino]butoxy]phenyl]penzotyrozoline hydrochloride (compound dynamic 38) was converted into H-3-acetyl-2-(2-hydroxy-5-methoxyphenyl)
It can be obtained from benzothiazolines (compounds 11 & 1L34). (α') D-441,2° (c=1.0.chloroform) IR:1663,1589,1493,1460°1
423.1376.1274, 1235.1207° Reference Example 3 (+)-3,4-dihydro-2-[5-methoxy-2-
C3-CN-methyl-N -C2-r(3,4-methylenedioxy)phenoxy]ethyl]amino]propoxy]phenyl]-4-methyl-3-ox7-2H-1,4
Production of (+)-3,4-dihydro-2-(+)-3,4-dihydro-2-(
2-hydroxy-5-methoxyphenyl)-4-methyl-3-oxo-2H-1,4-benzothiazine (compound N135.1.00 y), 3-bromo-1-propatol (0,46?) and Triphenylphosphine (
Diethyl azodicarboxylate (0.5 Wtl) was added to a THF (20ttt') solution of 0.87y) under a nitrogen atmosphere.
Add 1 jr dropwise at room temperature. After stirring at room temperature for 1 hour. Add triphenylphosphine (0,87y) and diethyl azodicarboxylate (0,5d). Furthermore, room temperature 1
After stirring for an hour, the reaction solvent was distilled off under reduced pressure. After separating the precipitated crystals, the P solution was purified by silica gel column chromatography to obtain (+)-2-(2-(3-bromoproboxy)
-5-methoxyphenyl]-3,4-dihydro-4-methyl-3-oxo-2H-1,4-benzothiazine0.
56';! (yield 40.2%). Melting point: 78.0-79.0°C (ethanol) [α]D
+197.7° (c=1.0.chloroform) IR:
1647, 1584.1492, 1465°1357.
1271, 1240.1201, 1148°1045.
799,746 Furthermore, the (+)-bromide obtained above (0,42f
). DMF (15-
) Stir the entire solution at 50°C for 3 hours. The reaction mixture was poured into water, extracted with ethyl acetate, and the organic layer was washed with saturated brine and then dried over anhydrous magnesium sulfate. The oily substance obtained by distilling off the solvent under reduced pressure was purified by silica gel column chromatography, and then treated with fumaric acid to obtain the title compound Q, 45y (yield: 6
9.2 Ch) 1- Obtain. Melting point = 133~l 33,5℃ (ethanol) [α)D
+194.2° ((!=1.0.dimethylsulfoxide) IR:1653,1470,1357,1267°12
39.1183, 1139.1106.1034° Similarly, H-3,4-dihydro-2-(5-methoxy-
2-1:3-(N-methyl-N-C2-C(3,4-methylenedioxy)phenoxy]ethyl]amino]propoxy]phenyl]-4-methyl-3-oxo-2H-1
,4-benzothiazine fumarate (compound N140) was converted into (c)-3,4-dihydro-2-(2-hydro-
5-methoxyphenyl)-4-methyl-3-oxo-2
It can be obtained from H-1,4-benzothiazine (Compound Kinetic 36). Melting point: 133-133.5°C (ethanol) [α: 1D
-195,5° (c=1.0.dimethylsulfoxide) IR: 1653.1466.1357.1267°1
239, 1183.1139.1106.1033゜
Effects of the Invention The present invention provides all useful synthetic intermediates for optically active benzothiazine and benzothiazoline compounds having calcium antagonistic effects.

Claims (1)

【特許請求の範囲】 式〔 I 〕で表わされる化合物およびその塩類。 ▲数式、化学式、表等があります▼〔 I 〕 〔式中、R^1は水素原子、低級アルキル基、低級アル
コキシ基、ハロゲン原子またはニトロ基から選択される
1個または複数の基を示す。 R^2は水素原子、低級アルカノイル基または低級アル
キル基を示す。 R^3は水素原子、低級アルキル基、低級アルコキシ基
、ハロゲン原子またはニトロ基から選択される1個また
は複数の基を示す。 R^4およびR^5は同一かまたは異なって、水素原子
もしくは低級アルキル基を示す。 R^6は水素原子、低級アルキル基、フェニル基または
ナフチル基を示し、フェニル基およびナフチル基は低級
アルキル基、低級アルコキシ基、ヒドロキシ基、ニトロ
基またはハロゲン原子から選択される1個または複数の
基で置換されていてもよい。 R^7は低級アルキル基、フェニルアルコキシ基または
フェニル基を示し、フェニルアルコキシ基およびフェニ
ル基のフェニル環は低級アルキル基、低級アルコキシ基
、ニトロ基またはハロゲン原子から選択される1個また
は複数の基で置換されていてもよい。 R^8は水素原子、低級アルキル基、低級アルコキシ基
、低級アルキルチオ基、ハロゲン原子、シアノ基または
低級アルカノイルアミノ基を示す。 nは0または1を示す。 XはSまたはCH_2を示す。〕
[Claims] A compound represented by formula [I] and salts thereof. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ [I] [In the formula, R^1 represents one or more groups selected from a hydrogen atom, a lower alkyl group, a lower alkoxy group, a halogen atom, or a nitro group. R^2 represents a hydrogen atom, a lower alkanoyl group or a lower alkyl group. R^3 represents one or more groups selected from a hydrogen atom, a lower alkyl group, a lower alkoxy group, a halogen atom, or a nitro group. R^4 and R^5 are the same or different and represent a hydrogen atom or a lower alkyl group. R^6 represents a hydrogen atom, a lower alkyl group, a phenyl group, or a naphthyl group, and the phenyl group and the naphthyl group are one or more atoms selected from a lower alkyl group, a lower alkoxy group, a hydroxy group, a nitro group, or a halogen atom. It may be substituted with a group. R^7 represents a lower alkyl group, a phenylalkoxy group, or a phenyl group, and the phenyl ring of the phenylalkoxy group and the phenyl group is one or more groups selected from a lower alkyl group, a lower alkoxy group, a nitro group, or a halogen atom. may be replaced with . R^8 represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a halogen atom, a cyano group, or a lower alkanoylamino group. n represents 0 or 1. X represents S or CH_2. ]
JP61253158A 1986-10-23 1986-10-23 Sulfur-containing heterocyclic compound Granted JPS63104969A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61253158A JPS63104969A (en) 1986-10-23 1986-10-23 Sulfur-containing heterocyclic compound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61253158A JPS63104969A (en) 1986-10-23 1986-10-23 Sulfur-containing heterocyclic compound

Publications (2)

Publication Number Publication Date
JPS63104969A true JPS63104969A (en) 1988-05-10
JPH0560833B2 JPH0560833B2 (en) 1993-09-03

Family

ID=17247337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61253158A Granted JPS63104969A (en) 1986-10-23 1986-10-23 Sulfur-containing heterocyclic compound

Country Status (1)

Country Link
JP (1) JPS63104969A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990015607A1 (en) * 1989-06-16 1990-12-27 Santen Pharmaceutical Co., Ltd. Drug for improving brain function
US6673815B2 (en) * 2001-11-06 2004-01-06 Bristol-Myers Squibb Company Substituted acid derivatives useful as antidiabetic and antiobesity agents and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990015607A1 (en) * 1989-06-16 1990-12-27 Santen Pharmaceutical Co., Ltd. Drug for improving brain function
US6673815B2 (en) * 2001-11-06 2004-01-06 Bristol-Myers Squibb Company Substituted acid derivatives useful as antidiabetic and antiobesity agents and method

Also Published As

Publication number Publication date
JPH0560833B2 (en) 1993-09-03

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