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    • 16. 发明申请
    • PENICILLIN CRYSTAL AND PROCESS FOR PRODUCING THE SAME
    • 派尼西林晶体及其制造方法
    • WO02016371A1
    • 2002-02-28
    • PCT/JP2001/006896
    • 2001-08-10
    • A61P31/04C07D499/00C07D499/18C07D499/44C07D499/86C07D499/87C07D499/897
    • C07D499/00
    • Crystals of 2-methyl-2-triazolylmethylpenam-3-carboxylic acid 1,1-dioxide diphenylmethyl ester. Even when allowed to stand for 1 year at 5 to 35 DEG C, the crystals are stable and undergo substantially no decomposition or alteration. The crystals are produced by adding 2-methyl-2-triazolylmethylpenam-3-carboxylic acid 1,1-dioxide diphenylmethyl ester, represented by the formula (1), (1) (wherein Ph represents phenyl) in an oily state or amorphous powdery state or an organic solvent solution of the ester to at least one member selected among alcohols and ketones and crystallizing the 2-methyl-2-triazolylmethylpenam-3-carboxylic acid 1,1-dioxide diphenylmethyl ester.
    • 2-甲基-2-三唑基甲基亚氨基-3-羧酸1,1-二氧化二苯甲基酯的晶体。 即使在5〜35℃下放置1年,晶体稳定,基本上不发生分解或变质。 通过将由式(1),(1)表示的2-甲基-2-三唑基甲基甲氨基-3-羧酸1,1-二氧化二苯甲基酯(其中Ph表示苯基)以油状或无定形粉末 状态或酯的有机溶剂溶液至选自醇和酮中的至少一种,并使2-甲基-2-三唑基甲基氨基-3-羧酸1,1-二氧化二苯基甲基酯结晶。
    • 17. 发明申请
    • PROCESS FOR SULTAMICILLIN INTERMEDIATE
    • 磺胺嘧啶中间体的方法
    • WO1991016326A1
    • 1991-10-31
    • PCT/US1991001765
    • 1991-03-15
    • PFIZER INC.GODEK, Dennis, MichaelMORRIS, Thomas, Arthus, Jr.
    • PFIZER INC.
    • C07D499/86
    • C07D499/00
    • A simplified method for making the chloromethyl ester of sulbactam in which the tetraalkylammonium sulbactam salt is not dried and isolated prior to alkylation. The method comprises reacting a tetraalkylammonium salt and a sulbactam salt in an aqueous solution to form an aqueous solution of tetraalkylammonium sulbactam. The tetraalkylammonium sulbactam is extracted into bromochloromethane or iodochloromethane, and water is removed from the organic layer to enhance the formation of the chloromethyl ester of sulbactam. The tetraalkylammonium sulbactam is reacted with bromochloromethane or iodochloromethane in the organic layer to form the chloromethyl ester of sulbactam.
    • 制备舒巴坦氯甲酯的简化方法,其中四烷基铵舒巴坦盐在烷基化之前未被干燥和分离。 该方法包括使四烷基铵盐和舒巴坦盐在水溶液中反应以形成四烷基铵舒巴坦的水溶液。 将四烷基铵舒巴坦提取到溴氯甲烷或碘氯甲烷中,并从有机层中除去水,以增强舒巴坦的氯甲基酯的形成。 四烷基铵舒巴坦与有机层中的溴氯甲烷或碘代氯甲烷反应形成舒巴坦的氯甲基酯。