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Benzodiazepine derivative hydrochloride and crystalline form, preparation method and application thereof
Benzodiazepine derivative hydrochloride and crystalline form, preparation method and application thereof
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机译:苯二氮卓衍生物盐酸盐和晶型,其制备方法和应用
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摘要
The present invention provides a crystal structure of a benzodiazepine derivative hydrochloride or ethanolate thereof represented by Formula I, wherein R is methyl or ethyl. The invention also provides a method for preparing a crystalline form of a compound represented by formula I and a pharmaceutical composition comprising the crystalline form.
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