JP2022507558A - チエノピリドン誘導体のカリウム塩一水和物及びその調製方法 - Google Patents
チエノピリドン誘導体のカリウム塩一水和物及びその調製方法 Download PDFInfo
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- JP2022507558A JP2022507558A JP2021526618A JP2021526618A JP2022507558A JP 2022507558 A JP2022507558 A JP 2022507558A JP 2021526618 A JP2021526618 A JP 2021526618A JP 2021526618 A JP2021526618 A JP 2021526618A JP 2022507558 A JP2022507558 A JP 2022507558A
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- Prior art keywords
- compound
- potassium salt
- salt monohydrate
- disease
- potassium
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- 230000002265 prevention Effects 0.000 claims abstract description 4
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- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 58
- 208000008338 non-alcoholic fatty liver disease Diseases 0.000 claims description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 51
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 49
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 46
- 239000002904 solvent Substances 0.000 claims description 43
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- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 claims description 9
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- NZAVQJCDRYONGJ-UHFFFAOYSA-N 1-(1-hydroxy-5,6,7,8-tetrahydronaphthalen-2-yl)ethanone Chemical compound C1CCCC2=C(O)C(C(=O)C)=CC=C21 NZAVQJCDRYONGJ-UHFFFAOYSA-N 0.000 claims description 8
- 208000024827 Alzheimer disease Diseases 0.000 claims description 8
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- 229910052801 chlorine Inorganic materials 0.000 claims description 6
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 claims description 6
- VMZCDNSFRSVYKQ-UHFFFAOYSA-N 2-phenylacetyl chloride Chemical compound ClC(=O)CC1=CC=CC=C1 VMZCDNSFRSVYKQ-UHFFFAOYSA-N 0.000 claims description 5
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- IUBQJLUDMLPAGT-UHFFFAOYSA-N potassium bis(trimethylsilyl)amide Chemical compound C[Si](C)(C)N([K])[Si](C)(C)C IUBQJLUDMLPAGT-UHFFFAOYSA-N 0.000 claims description 3
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- 235000011181 potassium carbonates Nutrition 0.000 description 21
- -1 2-Chloro-4-hydroxy-3- (5-hydroxytetraline-6-yl) -5-phenyl-7H-thieno [2,3-b] pyridine-6-one sodium salt tetrahydrate Chemical compound 0.000 description 18
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 18
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- 150000003904 phospholipids Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000010935 polish filtration Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- NTTOTNSKUYCDAV-UHFFFAOYSA-N potassium hydride Chemical compound [KH] NTTOTNSKUYCDAV-UHFFFAOYSA-N 0.000 description 1
- 229910000105 potassium hydride Inorganic materials 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 229940086066 potassium hydrogencarbonate Drugs 0.000 description 1
- ZRLVQFQTCMUIRM-UHFFFAOYSA-N potassium;2-methylbutan-2-olate Chemical compound [K+].CCC(C)(C)[O-] ZRLVQFQTCMUIRM-UHFFFAOYSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- UBQKCCHYAOITMY-UHFFFAOYSA-N pyridin-2-ol Chemical compound OC1=CC=CC=N1 UBQKCCHYAOITMY-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 235000019204 saccharin Nutrition 0.000 description 1
- CVHZOJJKTDOEJC-UHFFFAOYSA-N saccharin Chemical compound C1=CC=C2C(=O)NS(=O)(=O)C2=C1 CVHZOJJKTDOEJC-UHFFFAOYSA-N 0.000 description 1
- 229940081974 saccharin Drugs 0.000 description 1
- 239000000901 saccharin and its Na,K and Ca salt Substances 0.000 description 1
- 238000013341 scale-up Methods 0.000 description 1
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- 239000004208 shellac Substances 0.000 description 1
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- 229940113147 shellac Drugs 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- ODZPKZBBUMBTMG-UHFFFAOYSA-N sodium amide Chemical compound [NH2-].[Na+] ODZPKZBBUMBTMG-UHFFFAOYSA-N 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- WRIKHQLVHPKCJU-UHFFFAOYSA-N sodium bis(trimethylsilyl)amide Chemical compound C[Si](C)(C)N([Na])[Si](C)(C)C WRIKHQLVHPKCJU-UHFFFAOYSA-N 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- CGRKYEALWSRNJS-UHFFFAOYSA-N sodium;2-methylbutan-2-olate Chemical compound [Na+].CCC(C)(C)[O-] CGRKYEALWSRNJS-UHFFFAOYSA-N 0.000 description 1
- QBIHEHITTANFEO-UHFFFAOYSA-N sodium;tetrahydrate Chemical compound O.O.O.O.[Na] QBIHEHITTANFEO-UHFFFAOYSA-N 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
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- 239000007858 starting material Substances 0.000 description 1
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- 239000005061 synthetic rubber Substances 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 description 1
- 125000005329 tetralinyl group Chemical group C1(CCCC2=CC=CC=C12)* 0.000 description 1
- 230000000699 topical effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- 230000001988 toxicity Effects 0.000 description 1
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- 229920001285 xanthan gum Polymers 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
- 229930195724 β-lactose Natural products 0.000 description 1
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Abstract
Description
の化合物に関し、AMPKの活性化により調節される疾患の治療におけるそれらの使用にも関する。
(A) 水並びに酢酸n-ブチル及びイソプロパノールから選択される溶媒を含む溶液中で式(II):
(B) 析出物を形成する工程と、
(C) 工程(B)で得られた析出物を、好ましくはろ過により回収する工程と
を含む、方法に関する。
(A) 水並びに酢酸n-ブチル及びイソプロパノールから選択される溶媒を含む溶液中で式(II)の化合物を炭酸カリウムと反応させる工程と、
(B) 析出物を形成する工程と、
(C) 工程(B)で得られた析出物を、好ましくはろ過により回収する工程と
を含む。
発明の方法の1つ又は複数の工程はサブステップに分割されてもよい。
蒸留工程を、工程(B)の加熱サブステップと冷却サブステップとの間で行うことができる。
(b1)工程(A)で得られた混合物を70℃~120℃の間に含まれる温度まで加熱するサブステップと、
(b2)析出物を得るために、工程(b1)で得られた混合物を-15℃~35℃の間に含まれる温度まで冷却するサブステップと
を含むことが有利である。
(b1-1)工程(A)で得られた混合物を45℃~60℃の間に含まれる温度T3まで加熱するサブステップであって、T3が30分~10時間、好ましくは1時間~5時間維持される、サブステップと、
(b1-2)工程(b1-1)で得られた混合物を70℃~90℃、好ましくは75℃~85℃の間に含まれる温度Tb1まで加熱するサブステップであって、Tb1が5分~2時間、好ましくは5分~30分間維持される、サブステップと
を含む。
そのような実施形態において、酢酸n-ブチル及びイソプロパノールから選択される前記溶媒はイソプロパノールであることが有利である。
(b2-1) 工程(b1)で得られた混合物を13℃~35℃の間に含まれる温度T1まで、30分~5時間、好ましくは45分~2時間の間に含まれる時間P1にわたって冷却するサブステップと、
(b2-2) 工程(b2-1)で得られた混合物を-5℃~10℃、好ましくは0℃~5℃の間に含まれる温度T2まで、10分~5時間、好ましくは45分~2時間の間に含まれる時間P2にわたって冷却するサブステップと、
(b2-3) 前記温度T2を45分~250分間維持するサブステップと
を含む。
この実施形態において、速度r1=(Tb1-T1)/P1とr2=(T1-T2)/P2は異なっていてもよい。
そのような実施形態において、酢酸n-ブチル及びイソプロパノールから選択される前記溶媒は酢酸n-ブチルであることが有利である。
(b2-1') 工程(b1)で得られた混合物を30℃~50℃の間に含まれる温度T1'まで、60分~6時間、好ましくは90分~2時間の間に含まれる時間P1'にわたって冷却するサブステップと、
(b2-2') 工程(b2-1')で得られた混合物を-5℃~10℃、好ましくは0℃~10℃の間に含まれる温度T2'まで、1時間~20時間、好ましくは45分~2時間の間に含まれる時間P2'にわたって冷却するサブステップと、
(b2-3') 前記温度T2'を1時間~15時間維持するサブステップと
を含む。
この実施形態において、速度r1'=(Tb1-T1')/P1'とr2'=(T1'-T2')/P2'は異なっていてもよい。
そのような実施形態において、酢酸n-ブチル及びイソプロパノールから選択される前記溶媒はイソプロパノールであることが有利である。
蒸留工程を行う前及び/又は後に、水を反応混合物へ添加することが有利である。
特定の実施形態において、酢酸n-ブチル及びイソプロパノールから選択される前記溶媒はイソプロパノールであり、イソプロパノールと水との質量比は、蒸留工程の終了時に15/85以下、好ましくは10/90以下である。
析出物を、1つ又は複数の溶媒、好ましくは水、酢酸n-ブチル、及び/又はtert-ブチルメチルエーテルにより順次洗浄してもよい。
或いは、式(II)の前記化合物は、
(a') 6-アセチル-5-ヒドロキシテトラリンを塩基B1の存在下で求電子性ベンジル源と反応させる工程と、
(b') 工程(a')で得られた化合物をヘキサメチルジシラザン及び酢酸の存在下でシアノ酢酸エチルと反応させる工程と、
(c') 工程(b')で得られた化合物を塩基B2の存在下で硫黄と反応させる工程と、
(d') 任意選択により、工程(c')で得られた化合物の塩、好ましくは塩酸塩を形成する工程と、
(e') 工程(c')又は(d')で得られた化合物をN-クロロスクシンイミドと反応させる工程と、
(f') 工程(e')で得られた化合物をフェニルアセチルクロリドと反応させる工程と、
(g') 工程(f')で得られた化合物を塩基B3と反応させる工程と、
(h') 工程(g')で得られた化合物を三臭化ホウ素又は三塩化ホウ素と、好ましくは三塩化ホウ素と反応させる工程と、
(i') 任意選択により、工程(h')で得られた化合物を回収する工程と
を含む、改善された方法により得ることができる。
工程(c')における硫黄の量は、工程(b')で得られる化合物に対して1~5原子当量、好ましくは1~2.5原子当量、より好ましくは1~1.1原子当量の間に含まれていてもよい。
硫黄S8の1原子当量は硫黄S8の1/8当量である。
前記酸は純粋なガス、液体、若しくは固体の形態であってもよく、又はジオキサン等の溶媒中に可溶化させたものであってもよい。工程(d')は、任意の有機溶媒中、例えばエタノール、TBME、酢酸エチル、又はそれらの混合物中等で行われてもよい。工程(d')は、5℃~100℃、好ましくは15℃~35℃の間に含まれる温度で行われるのが有利である。
工程(d')で形成される前記塩を析出させ、したがってろ過により単離してもよい。工程(d')で得られる塩の再結晶は、エステル、例えば酢酸エチル若しくは酢酸n-ブチル等、トルエン、又はエーテル、例えばメチルテトラヒドロフラン、シクロペンチルメチルエーテル等から選択される有機溶媒、好ましくは酢酸エチルを使用して行われてもよい。
工程(e')は、任意の有機溶媒中、例えばジクロロメタン又はクロロホルム中等、好ましくはジクロロメタン中で行われてもよい。工程(e')の温度は-30℃~25℃、好ましくは-5℃~10℃、より好ましくは0℃~5℃の間に含まれるのが有利である。特に工程(d')で得られる化合物を用いて工程(e')が行われる場合、塩基、例えば炭酸ナトリウム若しくは炭酸カリウム、又は炭酸水素ナトリウム若しくは炭酸水素カリウム等、好ましくは炭酸カリウムを工程(e')において使用してもよい。
工程(f')の温度は-30℃~25℃、好ましくは-5℃~25℃、より好ましくは0℃~5℃の間に含まれることが有利である。
工程(g')は、THF、メチルテトラヒドロフラン、又はトルエン等の任意の有機溶媒中で、好ましくはTHF又はメチルテトラヒドロフラン中で行われてもよい。前記塩基B3は、ナトリウムアミド若しくはカリウムアミド、水素化ナトリウム若しくは水素化カリウム、ナトリウムビス(トリメチルシリル)アミド若しくはカリウムビス(トリメチルシリル)アミド、ナトリウムtert-ブトキシド若しくはカリウムtert-ブトキシド、及びナトリウムtert-ペントキシド若しくはカリウムtert-ペントキシドから成る群から選択されてもよく、好ましくはB3はカリウムtert-ブトキシド又はカリウムビス(トリメチルシリル)アミドであり、より好ましくはB3はカリウムtert-ブトキシドである。工程(g')におけるB3の量は、工程(f')で得られる化合物に対して2~10当量、好ましくは2.5~6当量、より好ましくは4~6当量の間に含まれていてもよい。工程(g')の反応は、不活性雰囲気下で、例えば窒素又はアルゴン雰囲気下等で行われるのが有利である。
一つの特定の実施形態において、工程(g')は、典型的には工程(f')で得られた化合物を含む混合物へB3を添加して、-40℃~15℃、好ましくは-30℃~10℃の間に含まれる温度で行われ、次いで15℃~40℃の間に含まれる温度で行われる。
eq.:当量
a/a: スペクトル又はクロマトグラム上の、所定の化合物のピーク面積とピーク面積の合計との比。
XRPD
粉末X線回折(XRPD)分析は、Cu (K アルファ線)X線管及びピクセル検出システムを備えたPanalytical Xpert Pro回折計を使用して行った。試料を透過モードで分析し、低密度ポリエチレン、Kapton(登録商標)、及び/又はポリプロピレンフィルムの間に保持した。HighScore Plus 2.2cソフトウェアを使用してXRPDパターンを分類し、処理し、インデックスをつけた。
Kapton(登録商標)は、2シータ=5.5°付近で弱い強度のブロードなピークを示す。
XRDピークの強度は、結晶構造の「ベース」を形成する原子のグループにおいて散乱される放射線の光の干渉、及び/又は結晶の配向によって決まる。
Perkin Elmer Diamond熱重量/示差温度分析計(TG/DTA)において熱重量(TG)分析を行った。キャリブレーション標準物質はインジウム及びスズとした。試料をアルミニウム試料皿に置き、TG炉へ装入し、正確に秤量した。試料を窒素流中で30~300℃まで10℃/分の速度で加熱した。試料の分析の前に炉の温度を30℃で平衡化させた。
式(I)のカリウム塩一水和物の合成
1a) 1-(5-ベンジルオキシテトラリン-6-イル)エタノン(1)の合成
化合物1がシロップとして得られた。m=148.6g、定量的収率、純度96.6% a/a。
室温まで冷却後、NaOH水溶液(1M、140mL)及びTBME(210mL)を添加した。層を分離させた。水性相のpHが塩基性となるまで(pH=13)、有機層をNaOH水溶液(1M、4×140mL)で洗浄した。有機層をHCl水溶液(1M、140mL)及びH2O(2×140mL)で洗浄した。
0℃で1時間及び室温で2時間後、混合物をおよそ35mLまで蒸発させ、EtOH(2×70mL)を添加し、再び蒸発させた。混合物をEtOH(35mL)で希釈し、氷/水で冷却した。生成物が析出した。固体をろ過し、低温のEtOH(3×18mL)で洗浄した。
化合物3を固体として得た。m=20.99g、収率94.2%、純度99.3% a/a。
化合物(I)を白色固体として得た。m=8.44g、収率90%、純度99.3%a/a。
化合物(II)を水/イソプロパノール混合物(1/1、5部の各溶媒)中に懸濁させ、次いで0.50~0.55当量の炭酸カリウムを添加した。炭酸カリウムの添加の終了時にpHは約12であった(pH試験紙)。50℃で3時間撹拌した後、懸濁液は粘度が高くなり、pHは約8であった(pH試験紙)。溶液が得られるまで温度を80℃に上昇させた(10~15分間)。必要に応じて、プロセスのこの時点で清澄化を行うことができる。7部の水を添加し、次いで反応混合物を40℃まで冷却した(濁った溶液が見られた)。7部の溶媒が反応器中に残るまで、溶媒を40℃、減圧下(180mbar~40mbar)で蒸留した。カリウム塩一水和物の結晶化がここで生じ得る。4.2部の水を添加し、混合物に化合物(I)のシードを添加した(1~2%のシード)。次いで懸濁液を7時間で40℃から5℃まで冷却し(5℃/時間)、5℃で数時間維持した。懸濁液をろ過した。1.42部の水でケーキを2回洗浄した。収集した固体を40℃、真空下で乾燥させて、必要とされる化学純度(すなわち98%+)において化合物(I)の最小の収率80%を得た。
化合物(I)の特性決定
a) 化合物(I)の粉末X線回折(XRPD)データはこの化合物が結晶性物質で構成されていることを示した。化合物(I)のXRPDの説明をTable 1(表5)に示す(図1も参照のこと)。
比較研究
3a) WO2014/001554による化合物(II)のカリウム塩の形成
化合物(II)(1g)をMeOH(6.25mL)/THF(6.25mL)中に懸濁させた。カリウムメトキシドMeOK(1.0当量)を添加し、続いて水(3.75mL)を添加した。得られる混合物を蒸発乾固させた。次いで凍結真空乾燥工程を行った。しかし、XRPD分析はアモルファス固体が得られたことを実証した(図2-プロトコル3a)。
1) 化合物(II)(1g)をMeOH(12.5mL)中に懸濁させた。カリウムメトキシドMeOK(1.0当量)、続いて水(7.5mL)を添加し、混合物T=50℃まで20分間加熱した。pHがおよそ10に到達したら反応を停止させた。得られる混合物を室温まで冷却し、蒸発乾固させた。混合物を室温までゆっくり冷却し、次いで凍結真空乾燥工程を行った。
しかし、XRPD分析は不純物を含むメタノール溶媒和物が得られたことを実証した(図2-プロトコル3b-1)。
医薬組成物
Table 2(表6)は、力価30mgのカプセル剤を製造するのに使用される、20%薬物負荷ブレンド、250gバッチスケールの処方を示す。
生物学的試験
- 食事誘発性肥満非アルコール性脂肪性肝炎(DIO-NASH)マウスモデルにおける肝臓及び脂肪組織(AT)代謝に対する式(I)のカリウム塩一水和物(又は「化合物(I)」)の効果をここで報告する。
Claims (14)
- 工程(B)が、以下のサブステップ:
(b1)工程(A)で得られた混合物を70℃~120℃の間に含まれる温度まで加熱するサブステップと、
(b2)析出物を得るために、工程(b1)で得られた混合物を-15℃~35℃の間に含まれる温度まで冷却するサブステップと
を含む、請求項1に記載の方法。 - 前記溶媒がイソプロパノールである、請求項1又は2に記載の方法。
- 工程(A)で使用される炭酸カリウムの量が、式(II)の前記化合物に対して0.25~3当量、好ましくは0.5~0.6当量の間に含まれる、請求項1から3のいずれか一項に記載の方法。
- 式(II)の前記化合物が、
(a') 6-アセチル-5-ヒドロキシテトラリンを塩基B1の存在下で求電子性ベンジル源、好ましくは臭化ベンジルと反応させる工程と、
(b') 工程(a')で得られた化合物をヘキサメチルジシラザン及び酢酸の存在下でシアノ酢酸エチルと反応させる工程と、
(c') 工程(b')で得られた化合物を塩基B2の存在下で硫黄と反応させる工程と、
(d') 任意選択により、工程(c')で得られた化合物の塩、好ましくは塩酸塩を形成する工程と、
(e') 工程(c')又は(d')で得られた化合物を求電子性塩素源、好ましくはN-クロロスクシンイミドと反応させる工程と、
(f') 工程(e')で得られた化合物をフェニルアセチルクロリドと反応させる工程と、
(g') 工程(f')で得られた化合物を塩基B3と反応させる工程と、
(h') 工程(g')で得られた化合物を三臭化ホウ素又は三塩化ホウ素と、好ましくは三塩化ホウ素と反応させる工程と、
(i') 任意選択により、工程(h')で得られた化合物を回収する工程と
を含む方法により得られる、請求項1から4のいずれか一項に記載の方法。 - 工程(a')がアセトニトリル中で行われ、B1が炭酸カリウムである、請求項5に記載の方法。
- 前記塩基B2がモルホリン又は炭酸水素ナトリウムである、請求項5又は6に記載の方法。
- B3がカリウムビス(トリメチルシリル)アミド及びカリウムtert-ブトキシドであり、好ましくはカリウムtert-ブトキシドである、請求項5から7のいずれか一項に記載の方法。
- 請求項9又は10に記載のカリウム塩一水和物、及び薬学的に許容可能な担体を含む医薬組成物。
- 医薬としての使用のための、請求項9若しくは10に記載のカリウム塩一水和物、又は請求項11に記載の医薬組成物。
- 糖尿病、メタボリックシンドローム、肥満、肝疾患、脂肪肝、非アルコール性脂肪性肝疾患(NAFLD)、非アルコール性脂肪性肝炎(NASH)、肝線維症、脂質異常症、高トリグリセリド血症、高コレステロール血症、炎症、がん、心血管疾患、アテローム性動脈硬化、高血圧、網膜症、神経障害、限定はされないがMELAS(ミトコンドリア脳筋症、乳酸アシドーシス、及び脳卒中様発作)、リー症候群、LHON(レーバー遺伝性視神経萎縮症)若しくはMNGIE(ミトコンドリア神経性胃腸管系脳筋症)を含むミトコンドリア病及びミオパチー、神経筋疾患、例えば、デュシェンヌ型筋ジストロフィー、ベッカー型筋ジストロフィー(BMD)若しくは脊髄性筋ジストロフィー、神経変性病、肺線維症、加齢性神経疾患、アルツハイマー病、又は代謝疾患、好ましくはNAFLD又はNASHの治療又は予防における使用のための、請求項9若しくは10に記載のカリウム塩一水和物、又は請求項11に記載の医薬組成物。
- カリウム塩一水和物が20mg~1000mg、好ましくは60~500mgの1日用量で対象に投与される、請求項12又は13に記載の使用のための医薬組成物又はカリウム塩一水和物。
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