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首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >Crystal structure of naltrexone chloride solvates with ethanol, propan-2-ol, and 2-methyl­propan-2-ol
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Crystal structure of naltrexone chloride solvates with ethanol, propan-2-ol, and 2-methyl­propan-2-ol

机译:纳曲酮氯化物与乙醇,丙-2-醇和2-甲基丙-2-醇的溶剂合物的晶体结构

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Naltrexone [systematic name: 17-(cyclo­propyl­meth­yl)-3,14-di­hydroxy-4,5α-epoxymorphinan-6-one] is an opioid receptor competitive antagonist that has been widely used to prevent relapse in opioid- and alcohol-dependent subjects. Its chloride salt forms non-isomorphic solvates with ethanol (C20H24NO4+·Cl−·C2H5OH) (I), propan-2-ol (C20H24NO4+·Cl−·C3H7OH) (II), and 2-methyl­propan-2-ol (C20H24NO4+·Cl−·C4H9OH) (III). The naltrexone cation can be described as a T-shape made out of two ring systems, a tetra­hydro-2H-naphtho­[1,8-bc]furan system and a deca­hydro­isoquinolinium subunit, that are nearly perpendicular to one another. The flexible cyclo­propyl­methyl group can adopt various different conformations in response to its surroundings: an increase of available space around cyclo­propyl­methyl group may allow it to adopt a more favorable conformation. In all these structures, the alcohol mol­ecules occupy infinite solvent-filled channels. All three compounds described are attractive crystalline forms for unambiguous identification of naltrexone chloride after isolation from a pharmaceutical form. Compound (III) was refined as a two-component twin.
机译:纳曲酮[系统名称:17-(环丙基甲基)-3,14-二羟基-4,5α-环氧吗啡喃-6-one]是一种阿片受体竞争性拮抗剂,已广泛用于预防阿片样物质和酒精依赖性患者的复发。它的氯化物盐与乙醇(C20H24NO4 +·Cl-·C2H5OH)(I),丙-2-醇(C20H24NO4 +·Cl-·C3H7OH)(II)和2-甲基丙-2-醇(C20H24NO4 +·)形成非同构溶剂化物Cl-·C4H9OH)(III)。纳曲酮阳离子可以描述为由两个环系统组成的T形,这两个环系统是彼此几乎垂直的四氢2H-萘[1,8-bc]呋喃系统和十氢异喹啉亚基。柔性环丙基甲基可以响应于其周围环境而采用各种不同的构象:环丙基甲基周围可用空间的增加可以使其具有更有利的构象。在所有这些结构中,醇分子占据了无限的溶剂填充通道。从药物形式中分离后,所描述的所有三种化合物均为吸引人的结晶形式,可用于明确鉴定纳曲酮氯化物。将化合物(III)精制为两组分孪晶。

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