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    • 1. 发明授权
    • Process for producing erythromycin derivative
    • 红霉素衍生物的制备方法
    • US06897299B2
    • 2005-05-24
    • US10363318
    • 2001-08-31
    • Hitoshi ShimizuKaname TsuzakiMitsuhiro Kurita
    • Hitoshi ShimizuKaname TsuzakiMitsuhiro Kurita
    • A61P1/00C07H17/08C07H1/00
    • A61K31/7048C07H17/08
    • A method for preparing a fumarate salt of a compound represented by Formula (II): (wherein R1 represents a hydrogen atom or a lower alkyl group, and R2 represents a lower alkyl group), which comprises carbamating a compound represented by Formula (I): (wherein R1 represents a hydrogen atom or a lower alkyl group), removing all carbamate groups from this compound, alkylating the nitrogen atom at the 3′-position of the desosamine ring in the resulting compound to give the compound represented by Formula (II), and converting this compound into a fumarate salt, wherein the compound represented by Formula (I) is carbamated in the presence of a cyclic ether or a carboxylic ester. This method enables efficient preparation of high-quality erythromycin derivatives.
    • 一种制备由式(II)表示的化合物的富马酸盐的方法:其中R 1表示氢原子或低级烷基,R 2表示 低级烷基),其包括将式(I)表示的化合物氨基甲酸酯化:(其中R 1表示氢原子或低级烷基),从该化合物中除去所有氨基甲酸酯基团,将氮烷基化 (II)表示的化合物,并将该化合物转化成富马酸盐,其中式(I)所示的化合物在氨基甲酸酯化反应的存在下进行氨基甲酸酯化反应 环醚或羧酸酯。 该方法能够高效地制备高品质的红霉素衍生物。