申请人:F. Hoffmann-La Roche AG
公开号:EP0695755A1
公开(公告)日:1996-02-07
Compounds represented by the Formula I:
wherein:
R¹ is hydrogen or lower alkyl;
R² is heteroaryl; and
R³ and R⁴ are independently hydrogen or lower alkyl;
and the pharmaceutically acceptable salts thereof, are useful as chemotherapeutic agents.
式 I 所代表的化合物:
其中
R¹ 是氢或低级烷基
R² 是杂芳基
R³ 和 R⁴ 独立地为氢或低级烷基;
及其药学上可接受的盐类可用作化疗药物。