The invention provides compounds of formula (I)
wherein
R1 represents a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, a hydroxy group, an alkoxy group having from 1 to 6 carbon atoms, a halogen atom, a nitro group, an amino group, a monoalkylamino group wherein the alkyl moiety has from 1 to 6 carbon atoms, a dialkylamino group wherein each alkyl moiety may be the same or different and each has from 1 to 6 carbon atoms, a dialkoxyamino group wherein each alkoxy moiety may be the same or different and each has from 1 to 6 carbon atoms, an alkanoyalmino group having from 1 to 20 carbon atoms or an alkanesulfonylamino group having from 1 to 6 carbon atoms;
R2 represents a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms; and
R3 represents a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms or an alkoxy group having from 1 to 6 carbon atoms;
and pharmaceutically acceptable salts thereof. The compounds exhibit activity against a wide variety of mammalian cancer cell lines.
本发明提供了如下公式(I)的化合物:
其中
R1代表氢原子、具有1至6个碳原子的烷基、羟基、具有1至6个碳原子的烷氧基、卤素原子、硝基、
氨基、具有1至6个碳原子的单烷基
氨基、每个烷基基团可以相同或不同且每个具有1至6个碳原子的二烷基
氨基、每个烷氧基团可以相同或不同且每个具有1至6个碳原子的二烷氧基
氨基、具有1至20个碳原子的烷基乙酰胺基或具有1至6个碳原子的烷基亚磺酰
氨基;
R2代表氢原子或具有1至6个碳原子的烷基;以及
R3代表氢原子、具有1至6个碳原子的烷基或具有1至6个碳原子的烷氧基;
以及它们的药用可接受盐。这些化合物对各种哺乳动物癌
细胞系具有活性。