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    • 2. 发明授权
    • Acetylmethyl ester of hetacyllin and/or salts of this ester
    • hetacyllin的乙酰基甲酯和/或该酯的盐
    • US4439363A
    • 1984-03-27
    • US352118
    • 1982-02-25
    • Wojciech A. GruszeckiIrena M. Busko-OszczopowiczMaria Gdulewicz-GruszeckaJerzy J. CieslakEdward BorowskiTeresa Gumiezna
    • Wojciech A. GruszeckiIrena M. Busko-OszczopowiczMaria Gdulewicz-GruszeckaJerzy J. CieslakEdward BorowskiTeresa Gumiezna
    • C07D499/08A61K31/415A61K31/43A61P31/04C07D20060101C07D499/46C07D499/64C07D499/68C07D499/80
    • C07D499/80
    • The acetylmethyl ester of hetacyllin and/or its salts of an organic or inorganic acid are described and methods for their synthesis wherein a tertiary amine and chloroacetone are introduced to hetacyllin in an organic solvent or chloroacetone is introduced to hetacyllin in the form of a salt with an alkali metal in an organic solvent, and then from the reaction mixture, the acetylmethyl ester of hetacyllin is isolated in free form and, if desired, a salt of the ester is obtained by reaction with an organic or inorganic acid in an organic solvent.As tertiary amines, trialkylamine, N-methylpiperidine, N-ethylpiperidine or N-methylmorpholine are used; as organic solvents in obtaining the ester, dimethylformamide, dimethylacetamide or dimethylsulfoxide are used. In obtaining salts of the ester the organic solvents used are aliphatic alcohols of a chain length C.sub.2 -C.sub.5 ; ketones, preferably acetone; ethers, such as diethyl, dipropyl, diisopropyl, dibutyl ethers, or their mixtures.The obtained compounds show an antibacterial action like ampicillin but after administration per os they show a considerably higher level of the antibiotic than that after administration of free ampicillin or its esters.
    • 描述了hetacyllin的乙酰甲基酯和/或其有机或无机酸的盐,并将其合成方法,其中叔胺和氯丙酮在有机溶剂或氯丙酮中引入hetacyllin,以盐的形式引入到hetacyllin中, 在有机溶剂中的碱金属,然后从反应混合物中分离出游离形式的海参酰基乙酰甲基酯,如果需要,通过在有机溶剂中与有机或无机酸反应获得酯的盐。 作为叔胺,使用三烷基胺,N-甲基哌啶,N-乙基哌啶或N-甲基吗啉; 作为获得酯的有机溶剂,使用二甲基甲酰胺,二甲基乙酰胺或二甲基亚砜。 在获得酯的盐时,使用的有机溶剂是链长C 2 -C 5的脂族醇; 酮,优选丙酮; 醚,如二乙基,二丙基,二异丙基,二丁基醚或它们的混合物。 所得化合物显示出抗菌作用,如氨苄青霉素,但是在施用之后,它们显示比施用游离氨苄青霉素或其酯后显着高得多的抗生素水平。
    • 7. 发明申请
    • NOVEL CRYSTAL OF PIPERACILLIN SODIUM
    • PIPERACILLIN SODIUM的新型水晶
    • US20100063273A1
    • 2010-03-11
    • US12524875
    • 2008-01-29
    • Masaru MouriDai Nishikawa
    • Masaru MouriDai Nishikawa
    • C07D499/80
    • C07D499/68A61K9/0019
    • Disclosed are a novel crystal of piperacillin sodium which has diffraction angles of 3.7°, 5.5°, 7.3°, 11.6°, 14.5° and 18.0° and a novel crystal of piperacillin sodium which has diffraction angles of 5.6°, 7.8°, 12.3°, 15.5°, 17.5°, 23.3°, 24.8° and 28.5° expressed by 2θ in the powder X-ray diffraction analysis. The crystals have excellent stability and solubility and a low water-absorbing property, is extremely easy to be handled in the manufacturing process for a medicinal substance and in the packing during the preparation process for a pharmaceutical product. A pharmaceutical preparation for injection comprising any one of the crystals is useful.
    • 公开了一种新颖的哌拉西林钠结晶,其衍射角为3.7°,5.5°,7.3°,11.6°,14.5°和18.0°,新颖的哌拉西林钠晶体为衍射角为5.6°,7.8°,12.3° ,15.5°,17.5°,23.3°,24.8°和28.5°,由2表示; 在粉末X射线衍射分析中。 晶体具有优异的稳定性和溶解性以及低吸水性,在制药过程中对于药物的制造过程和包装中的处理非常容易。 包含任何一种晶体的用于注射的药物制剂是有用的。