4-Demethoxy-4'-deoxydoxorubicin
    1.
    发明授权
    4-Demethoxy-4'-deoxydoxorubicin 失效
    4-脱甲氧基-4'-脱氧阿霉素

    公开(公告)号:US4325947A

    公开(公告)日:1982-04-20

    申请号:US263002

    申请日:1981-05-12

    CPC分类号: C07H15/252 Y02P20/55

    摘要: A new anthracycline glycoside, which is 4-demethoxy-4'-deoxydoxorubicin, provided with outstanding antitumoral activity also by oral route, has been prepared by condensation of 4-demethoxydaunomycinone with 2,3,4,6-tetradeoxy-3-trifluoroacetamido-L-threo-hexopyranosyl chloride.By elimination of the protecting group from the so obtained glycoside through a mild alkaline hydrolysis, 4-demethoxy-4'-deoxydaunorubicin was obtained which was successively brominated to give the corresponding 14-bromo derivative. By a subsequent hydrolysis with sodium formate the brominated intermediate was transformed into 4-demethoxy-4'-deoxydoxorubicin eventually isolated as its hydrochloride.

    摘要翻译: 通过口服途径提供了具有优异抗肿瘤活性的4-脱甲氧基-4'-脱氧阿霉素的新型蒽环苷类糖苷,已经通过4-脱甲氧基多霉素酮与2,3,4,6-四脱氧-3-三氟乙酰氨基 - L-苏 - 六吡喃葡萄糖。 通过轻度碱性水解从所得糖苷中除去保护基,得到4-脱甲氧基-4'-脱氧阿诺醌,依次溴化得到相应的14-溴衍生物。 随后用甲酸钠水解,将溴化中间体转化为最终以其盐酸盐分离的4-脱甲氧基-4'-脱氧阿霉素。