The invention relates to compounds of a general formula (I):wherein A1 is selected from the following formula (aa1):(aa1) R1 is a lower alkenyl group or a lower alkynyl group R2 is a phenyl, pyridyl or thienyl group R5 and R6 are a hydrogen atom, a lower alkyl group or a hydroxy-lower alkyl group, etc.The compounds of the invention have excellent Weel kinase-inhibitory effect and are therefore useful in the field of medicines, especially treatment of various cancers.本發明係關於通式(I)之化合物:其中A1係選自具有下式(aa1)者:(aa1);R1係低碳烯基或低碳炔基;R2係苯基、吡啶基或噻吩基;R5及R6均為氫原子、低碳烷基或羥基-低碳烷基等。本發明之化合物具有極佳Weel激酶抑制作用且因此可用於醫學領域,尤其可用於各種癌症治療。
