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    • 31. 发明授权
    • 1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin
and the production thereof
    • 1-N - ((S) - {60-取代的 - {107-氨基酰基) - 纳米颗粒或 - 瑞波霉素及其制备
    • US4008218A
    • 1977-02-15
    • US559771
    • 1975-03-19
    • Eiichi AkitaTsutomu TsuchiyaShinichi KondoShuntaro YasudaSumio UmezawaHamao Umezawa
    • Eiichi AkitaTsutomu TsuchiyaShinichi KondoShuntaro YasudaSumio UmezawaHamao Umezawa
    • C07H15/224C07H15/23C07G11/00
    • C07H15/224C07H15/23
    • An 1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin of the formula: ##STR1## wherein R is a hydrogen atom or .beta.-D-ribofuranosyl group of the formula ##STR2## and R.sub.3 is hydroxyl, amino-NH.sub.2 or acylamino group --NHR.sub.4 in which R.sub.4 is an acyl group, and n is a whole number of 1 to 4, may be produced by subjecting the corresponding O-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin of the formula ##STR3## or its hydroxyl-masked and amino-masked form, to the action of a basic medium to produce an acyl-migration product of the formula: ##STR4## and, optionally converting the amino-masking groups into hydrogen atoms and also the hydroxyl-masking group into hydrogen atom in a known manner if said amino-masking groups and said hydroxyl-masking groups are present in the acyl-migration product. The 1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin produced is characterized by its useful activity inhibitory to the growth of bacteria resistant to the parent substance neamine or ribostamycin.
    • 具有下式的1-N - ((S)-α-取代的ω-氨基酰基) - 微量胺或 - 瑞波霉素:其中R是式“IMAGE”的氢原子或β-D-呋喃核糖基, R 3是羟基,氨基-NH 2或酰基氨基-NHR 4,其中R 4是酰基,n是整数1至4,可以通过使相应的O - ((S)-α-取代的-ω- - 氨基酰基) - 或者其羟基掩蔽和氨基掩蔽形式的微生物胺或β-内啡霉素或碱性培养基,以产生下式的酰基迁移产物: 如果所述氨基掩蔽基团和所述羟基掩蔽基团存在于酰基迁移产物中,则以已知的方式将氨基掩蔽基团转化成氢原子,并将羟基掩蔽基团转变为氢原子。 产生的1-N - ((S)-α-取代的ω-氨基酰基) - 单胺或 - 生物霉素的特征在于其对母体neamine或核糖霉素具有抗性的细菌的生长有抑制作用。