Substituted phenyl-1,3-dioxoloquinoline derivatives and their use as antitumor agents
申请人:GLAXO INC.
公开号:EP0496634A1
公开(公告)日:1992-07-29
The present invention relates to the compounds of formula (I),
wherein:
R¹ is hydrogen, hydroxy or amino;
R² is hydrogen, hydroxy, methoxy or methoxymethoxy;
R³ is hydrogen, hydroxy, amino, methoxy, methoxymethoxy or, taken together with R², methylenedioxy (also known as 1,3 dioxolo);
R⁴ is hydrogen, hydroxy, methoxy, methoxymethoxy, benzyl, di(C₁₋₄)alkylaminomethyl or, taken together with R³, methylenedioxy;
R⁵ is hydrogen or hydroxy;
provided that at least one of R¹ through R⁵ is other than hydrogen; and
i) X² is hydroxy or methoxy with X¹, X³ and X⁴ being hydrogen; or
ii) X¹ taken together with X²,
X² taken together with X³ or
X³ taken together with X⁴, is methylenedioxy, provided that each of the remaining respective X¹, X², X³ and X⁴ substituents are hydrogen,
intermediates in the synthesis of them, pharmaceutical formulation containing them, their use as inhibitors of topoisomerase and their use in the treatment of tumors.
本发明涉及式(I)化合物、
其中
R¹ 是氢、羟基或氨基;
R² 是氢、羟基、甲氧基或甲氧基甲氧基;
R³ 是氢、羟基、氨基、甲氧基、甲氧基甲氧基,或与 R² 一起是亚甲基二氧基(又称 1,3 二氧环己烷);
R⁴ 是氢、羟基、甲氧基、甲氧基甲氧基、苄基、二(C₁₋₄)烷基氨基甲基或与 R³ 结合为亚甲基二氧基;
R⁵ 是氢或羟基;
但 R¹ 至 R⁵ 中至少有一个不是氢;以及
i) X² 是羟基或甲氧基,其中 X¹、X³ 和 X⁴ 是氢;或
ii) X¹ 与 X²、
X² 与 X³ 或
X¹与 X²、X²与 X³或 X³与 X⁴一起为亚甲基二氧基,条件是 X¹、X²、X³和 X⁴各自的其余取代基均为氢、
它们的合成中间体、含有它们的药物制剂、它们作为拓扑异构酶抑制剂的用途以及它们在治疗肿瘤中的用途。