JP5856990B2 - ジルパテロールおよびこの塩の製造方法 - Google Patents
ジルパテロールおよびこの塩の製造方法 Download PDFInfo
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- JP5856990B2 JP5856990B2 JP2013043911A JP2013043911A JP5856990B2 JP 5856990 B2 JP5856990 B2 JP 5856990B2 JP 2013043911 A JP2013043911 A JP 2013043911A JP 2013043911 A JP2013043911 A JP 2013043911A JP 5856990 B2 JP5856990 B2 JP 5856990B2
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- Prior art keywords
- salt
- dihydro
- oxo
- acid
- reaction
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- 239000000203 mixture Substances 0.000 claims description 89
- ZSTCZWJCLIRCOJ-DGCLKSJQSA-N Zilpaterol Chemical compound O[C@H]1[C@H](NC(C)C)CCN2C(=O)NC3=CC=CC1=C32 ZSTCZWJCLIRCOJ-DGCLKSJQSA-N 0.000 claims description 80
- 229960000960 zilpaterol Drugs 0.000 claims description 79
- 238000000034 method Methods 0.000 claims description 77
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- 239000002253 acid Substances 0.000 claims description 49
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 41
- RMEYYXAQCKQGKC-UHFFFAOYSA-N chloro 4-(2-oxo-3h-benzimidazol-1-yl)butanoate Chemical compound C1=CC=C2NC(=O)N(CCCC(=O)OCl)C2=C1 RMEYYXAQCKQGKC-UHFFFAOYSA-N 0.000 claims description 39
- YNQJQZNYQKJKHM-UHFFFAOYSA-N 8,9-dihydro-2h,7h-2,9a-diazabenzo[cd]azulene-1,6-dione Chemical compound C1=CC(=O)CC(CC2)=C3N2C(=O)NC=C31 YNQJQZNYQKJKHM-UHFFFAOYSA-N 0.000 claims description 37
- PTNUQSFEJXMNOQ-UHFFFAOYSA-N 4-(2-oxo-3h-benzimidazol-1-yl)butanoic acid Chemical compound C1=CC=C2NC(=O)N(CCCC(=O)O)C2=C1 PTNUQSFEJXMNOQ-UHFFFAOYSA-N 0.000 claims description 29
- 239000012320 chlorinating reagent Substances 0.000 claims description 28
- CTSLXHKWHWQRSH-UHFFFAOYSA-N oxalyl chloride Chemical compound ClC(=O)C(Cl)=O CTSLXHKWHWQRSH-UHFFFAOYSA-N 0.000 claims description 28
- 239000002841 Lewis acid Substances 0.000 claims description 21
- -1 oxo-1H-benzimidazol-1-butanoate Chemical compound 0.000 claims description 21
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- OPRNKQAIPPYTIR-UHFFFAOYSA-N N1C(CC=CC2=C1C=CC(C2=NO)=O)=O Chemical compound N1C(CC=CC2=C1C=CC(C2=NO)=O)=O OPRNKQAIPPYTIR-UHFFFAOYSA-N 0.000 claims description 2
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- CJCHFSHSQGBEBO-UHFFFAOYSA-N 3-chloro-1h-benzimidazol-2-one Chemical compound C1=CC=C2NC(=O)N(Cl)C2=C1 CJCHFSHSQGBEBO-UHFFFAOYSA-N 0.000 claims 1
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- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 10
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- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 9
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- QDMYVAGJPVQRSQ-UHFFFAOYSA-N 92260-81-6 Chemical compound O=C1CCCN2C(=O)NC3=CC=CC1=C32 QDMYVAGJPVQRSQ-UHFFFAOYSA-N 0.000 description 4
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- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 4
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- BEOOHQFXGBMRKU-UHFFFAOYSA-N sodium cyanoborohydride Chemical compound [Na+].[B-]C#N BEOOHQFXGBMRKU-UHFFFAOYSA-N 0.000 description 1
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- 235000011008 sodium phosphates Nutrition 0.000 description 1
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- 239000004455 soybean meal Substances 0.000 description 1
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- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- 239000007929 subcutaneous injection Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
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- 239000005720 sucrose Substances 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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- IOGXOCVLYRDXLW-UHFFFAOYSA-N tert-butyl nitrite Chemical compound CC(C)(C)ON=O IOGXOCVLYRDXLW-UHFFFAOYSA-N 0.000 description 1
- 239000012414 tert-butyl nitrite Substances 0.000 description 1
- 150000003567 thiocyanates Chemical class 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- 230000002110 toxicologic effect Effects 0.000 description 1
- 231100000027 toxicology Toxicity 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- ZDPHROOEEOARMN-UHFFFAOYSA-N undecanoic acid Chemical compound CCCCCCCCCCC(O)=O ZDPHROOEEOARMN-UHFFFAOYSA-N 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000015099 wheat brans Nutrition 0.000 description 1
- 229940100445 wheat starch Drugs 0.000 description 1
- GIEFXLLRTJNFGT-LOCPCMAASA-N zilpaterol hcl Chemical compound Cl.O[C@H]1[C@H](NC(C)C)CCN2C(=O)NC3=CC=CC1=C32 GIEFXLLRTJNFGT-LOCPCMAASA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
本特許は、米国特許出願第60/920,885号(2007年3月31日出願)、米国特許出願第60/909,611号(2007年4月2日出願)、および欧州特許出願第EP07105551.1号(2007年4月3日出願)に対する優先権を主張する。これら各特許出願の文章全体が、参照により本明細書に組み入れられる。
A−1.クロロ2,3−ジヒドロ−2−オキソ−1H−ベンゾイミダゾール−1−ブタノエートの調製
ある実施形態では、ジルパテロールまたは塩の合成は、クロロ2,3−ジヒドロ−2−オキソ−1H−ベンゾイミダゾール−1−ブタノエート、
ある実施形態では、ジルパテロールまたはこの塩の合成は、8,9−ジヒドロ−2H,7H−2,9a−ジアザベンゾ[cd]アズレン−1,6−ジオンの調製によって始まる、またはこの調製を含む。
ある実施形態では、ジルパテロールまたはこの塩の合成は、4,5−ジヒドロ−イミダゾ[4,5,1−jk][1]ベンゾアゼピン−2,6,7[1H]−トリオン−6−オキシムの調製によって始まる、またはこの調製を含む。
ジルパテロールは、A−1項、A−2項、またはA−3項のいずれかの生成物から種々の方法を使用して調製することができる。
本発明では、上記反応のいずれかを使用するあらゆる方法が考慮される。ある実施形態では、本発明の方法は上記反応の1つのみを含む。別の実施形態では、本発明の方法は上記反応の2つ以上を含む。以下のスキームIは、上記すべての反応が使用されるシナリオを包括的に示している。
本発明が、上記合成反応中の1種類以上の試薬および/または生成物が塩の形態であってよい実施形態をさらに含むことを理解されたい。例えばHCl塩などの1種類以上の酸付加塩の形態であってよいジルパテロール生成物の場合に特にこのことが言える。塩は、例えば塩基付加塩または酸付加塩であってよい。一般に、酸付加塩は種々の無機酸または有機酸を使用して調製することができ、塩基付加塩は種々の無機塩基および有機塩基を使用して調製することができる。このような塩は典型的には、例えば当分野において公知の方法を使用して、例えば遊離塩基化合物を酸と混合することによって、または遊離酸化合物を塩基と混合することによって形成することができる。塩は、種々の温度および湿度における安定性、または水、油またはその他の溶媒に対する望ましい溶解性などの塩の1つ以上の化学的性質または物理的性質のために好都合となり得る。場合によっては、化合物の単離または精製を促進するために、この化合物の塩を使用することもできる。ある実施形態(特に塩が、動物に投与されていることが意図されている場合、または塩が、動物に投与することが意図された化合物または塩の製造に使用される試薬となる場合)では、この塩は医薬的に許容されるものである。用語「医薬的に許容される」は、医薬品への使用が適切となる塩を特徴付けるために使用される。一般に、医薬的に許容される塩は、この塩が有することがあるあらゆる悪影響より重要となる1つ以上の利点を有する。
本発明により調製されたジルパテロールまたは塩を含有する組成物は一般に、例えば家畜、家禽および/または魚類の体重増加速度の増加、飼料効率の改善、および/または枝肉赤身割合の増加に使用することができる。
以下の実施例は、本発明の実施形態を単に説明するものであって、本開示の残りの部分を限定するものでは決していない。
ジルパテロールの遊離塩基をエタノール中に溶解させる。次に、HClで飽和させた酢酸エチルを加える。得られた混合物を減圧濾過すると、ジルパテロールのHCl塩を含有する粗生成物が得られる。この粗生成物を熱メタノール中に溶解させる。次に酢酸エチルを加え、混合物を濾過すると最終的なHCl塩の生成物が得られる。
実施例6のHCl塩2.5または5mg、ならびにラクトース、小麦デンプン、処理デンプン、コメデンプン、タルクおよびステアリン酸マグネシウムの最終重量を100mgにするのに十分な賦形剤を含有する錠剤を調製する。
顆粒の各1日用量で実施例6のHCl塩を12.5または25含有する顆粒を調製する。
結晶ラセミ体のトランスジルパテロールを製造するための米国特許5,731,028に記載の方法を使用して実施例6のHCl塩を結晶化させる。結晶の5%未満が15μm未満の大きさを有し、結晶の少なくとも95%が250μm未満の大きさを有する。次に、欧州特許0197188(本特許に参照により組み入れられる。)に記載の方法を使用すると、300から800μmのトウモロコシ穂軸支持体に固定した結晶HCl塩のプレミックスが得られる。このプレミックス中のHCl塩濃度は3%(重量基準)である。
Claims (12)
- ジルパテロールまたはこの塩の製造方法であって、
4−(2−オキソ−2,3−ジヒドロベンゾイミダゾール−1−イル)酪酸(またはこの塩)を、塩化オキサリルである塩素化剤と反応させることを含む方法によってクロロ2,3−ジヒドロ−2−オキソ−1H−ベンゾイミダゾール−1−ブタノエート(またはこの塩)を製造すること;を含む、方法。 - 8,9−ジヒドロ−2H,7H−2,9a−ジアザベンゾ[cd]アズレン−1,6−ジオン(またはこの塩)を無機亜硝酸塩と反応させることを含む方法によって4,5−ジヒドロ−イミダゾ[4,5,1−jk][1]ベンゾアゼピン−2,6,7[1H]−トリオン−6−オキシム(またはこの塩)を製造することを更に含む、請求項1に記載の方法。
- クロロ2,3−ジヒドロ−2−オキソ−1H−ベンゾイミダゾール−1−ブタノエートまたはこの塩の製造方法であって、4−(2−オキソ−2,3−ジヒドロベンゾイミダゾール−1−イル)酪酸(またはこの塩)を、塩化オキサリルである塩素化剤と反応させることを含む、方法。
- 8,9−ジヒドロ−2H,7H−2,9a−ジアザベンゾ[cd]アズレン−1,6−ジオンまたはこの塩の製造方法であって、
4−(2−オキソ−2,3−ジヒドロベンゾイミダゾール−1−イル)酪酸(またはこの塩)を、塩化オキサリルである塩素化剤と反応させることを含む方法によってクロロ2,3−ジヒドロ−2−オキソ−1H−ベンゾイミダゾール−1−ブタノエート(またはこの塩)を製造すること;および
クロロ2,3−ジヒドロ−2−オキソ−1H−ベンゾイミダゾール−1−ブタノエート(またはこの塩)をルイス酸と反応させることを含む、方法。 - ルイス酸がAlCl3を含む、請求項6に記載の方法。
- 4−(2−オキソ−2,3−ジヒドロベンゾイミダゾール−1−イル)酪酸(またはこの塩)を塩化オキサリルと反応させることを含む方法によってクロロ2,3−ジヒドロ−2−オキソ−1H−ベンゾイミダゾール−1−ブタノエート(またはこの塩)を製造すること;
8,9−ジヒドロ−2H,7H−2,9a−ジアザベンゾ[cd]アズレン−1,6−ジオン(またはこの塩)を含む生成混合物を
クロロ2,3−ジヒドロ−2−オキソ−1H−ベンゾイミダゾール−1−ブタノエート(またはこの塩)をAlCl3と混合すること、および
得られた混合物を酸と混合すること
を含む方法によって製造すること、
生成混合物から8,9−ジヒドロ−2H,7H−2,9a−ジアザベンゾ[cd]アズレン−1,6−ジオンを分離すること;および
残りの生成混合物の少なくとも一部を塩基と混合することを含む方法によって、残りの生成混合物の少なくとも一部からAl(OH)3を分離すること
を含む、請求項6に記載の方法。 - 4−(2−オキソ−2,3−ジヒドロベンゾイミダゾール−1−イル)酪酸(またはこの塩)を、ジクロロメタンの存在下で塩素化剤と反応させる、請求項1〜8のいずれか一項に記載の方法。
- 4−(2−オキソ−2,3−ジヒドロベンゾイミダゾール−1−イル)酪酸(またはこの塩)を、ジメチルホルムアミドの触媒量の存在下で塩素化剤と反応させる、請求項1〜9のいずれか一項に記載の方法。
- 無機亜硝酸塩が亜硝酸塩を含む、請求項2に記載の方法。
- 亜硝酸塩がNaNO2を含む、請求項11に記載の方法。
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