New anthracyclinones and their production
    2.
    发明授权
    New anthracyclinones and their production 失效
    新的蒽环类和它们的生产

    公开(公告)号:US4536336A

    公开(公告)日:1985-08-20

    申请号:US565216

    申请日:1983-12-23

    申请人: Yoshito Kishi

    发明人: Yoshito Kishi

    摘要: A new compound of the formula ##STR1## wherein R.sup.1 is a hydrogen atom, a hydroxyl group or an alkoxyl group of 1-4 carbon atoms and R.sup.2 is an ethyl group or acetyl group is now provided, which is an intermediate compound useful for synthesis of antitumor anthracyclines. This new anthracycline is produced by cyclization of a new compound of the formula ##STR2## wherein R.sup.1 is as defined above and TMS denotes a trimethylsilyl group, followed by decarboxylation of the cyclization product.

    摘要翻译: 现在提供新的式(Ⅰ)化合物,其中R1是氢原子,1-4个碳原子的羟基或烷氧基,R2是乙基或乙酰基,它是中间体化合物 用于合成抗肿瘤蒽环类药物。 这种新的蒽环霉素是通过使式(II)的新化合物环化制备的,其中R 1如上定义,TMS表示三甲基甲硅烷基,随后环化产物脱羧。

    Enterobactin compounds
    5.
    发明授权
    Enterobactin compounds 失效
    肠易激蛋白化合物

    公开(公告)号:US5412080A

    公开(公告)日:1995-05-02

    申请号:US111622

    申请日:1993-08-25

    CPC分类号: C07D493/18

    摘要: Enterobactin analogs prepared from scyllo-inositol mono-orthoformate and having the following formula: ##STR1## wherein each X.sub.1, X.sub.2 and X.sub.3, independently, is H, C.sub.1-20 alkyl, phenyl, naphthyl, C.sub.7-20 aralkyl, or C.sub.7-20 alkaryl; Y is H, C.sub.1-20 alkyl, phenyl, naphthyl; C.sub.7-20 aralkyl, C.sub.7-20 alkaryl; --(C.sub.p H.sub.2p)--CH.sub.2 OH, --(C.sub.p H.sub.2p)--COOH or its salt, --(C.sub.p H.sub.2p)--NR.sub.1.R.sub.2 or its salt, or --(C.sub.p H.sub.2p)--N.sup.+ R.sub.1.R.sub.2.R.sub.3 ; in which p is 1-20 and each R.sub.1, R.sub.2 and R.sub.3, independently, is H or C.sub.1-5 alkyl; and m, n and o, independently, is 1-6; or the enantiomer thereof.

    摘要翻译: 由鲨肌醇单原甲酸酯制备的具有下列结构式的生物激素类似物:其中每个X1,X2和X3独立地为H,C1-20烷基,苯基,萘基,C7-20芳烷基或C7-20 烷芳基 Y是H,C 1-20烷基,苯基,萘基; C7-20芳烷基,C7-20烷芳基; - (CpH2p)-CH2OH, - (CpH2p)-COOH或其盐, - (CpH2p)-NR1R2或其盐,或 - (CpH2p)-N + R1.R2R3; 其中p为1-20,且每个R 1,R 2和R 3独立地为H或C 1-5烷基; m,n和o独立地为1-6; 或其对映异构体。