申请人:Takeda Chemical Industries, Ltd.
公开号:EP0011276A1
公开(公告)日:1980-05-28
Novel maytansinoids of the formula:
wherein
R1 is hydrogen atom, an alkyl group which may optionally be substituted or a group of the formula: -A1-Y1 wherein A' is an alkylene group or a bond, and Y1 is a cycloalkyl, phenyl, indolyl or imidazolyl group which may optionally be substituted,
R2 is hydrogen atom, an alkyl, cycloalkyl or benzyl group,
R3 is hydrogen atom, an alkyl group which may optionally be substituted, alkoxy, bornyloxy, isobornyloxy, benzyloxy group or a group of the formula: -A2-Y2 wherein A2 is an alkylene group or a bond, and Y2 is an alicyclic hydrocarbon, phenyl or heterocyclic group which may optionally be substituted, provided that R3 is not an unsubstituted C1-4 alkyl group when both R' and R2 are methyl group, have antimicrobial antimitotic and antitumor activities.
式中的新型美坦素类化合物:
式中
R1 是氢原子、可任选被取代的烷基或式中的一个基团:-其中 A'是亚烷基或键,Y1 是可选择被取代的环烷基、苯基、吲哚基或咪唑基、
R2 是氢原子、烷基、环烷基或苄基、
R3 是氢原子、可任选被取代的烷基、烷氧基、硼氧基、异硼氧基、苄氧基或式中的一个基团:-A2-Y2,其中 A2 是亚烷基或键,Y2 是脂环烃、苯基或杂环基(可选择被取代),条件是当 R' 和 R2 都是甲基时,R3 不是未被取代的 C1-4 烷基。