synthesized by bioisosteric replacements of the quinazolone moiety of the pentacyclic system with benzothiadiazine 1,1-dioxide. Syntheses were performed efficiently by formation of phenylhydrazones via active methylene group transformations of pyrrolo- and pyrido[1,2-b]1,2,4-benzothiadiazine 5,5-dioxides, and subsequent Fischer-indolization. Preliminary testing of compound 3 showed cytotoxic activity against
Rutaecarpine (Evodia rutaecarpa) 衍
生物是通过用苯并噻二嗪 1,1-二氧化物对五环系统的
喹唑酮部分进行
生物等排置换而合成的。通过
吡咯并和
吡啶并[1,2-b]1,2,4-苯并噻二嗪5,5-二氧化物的活性亚甲基转化形成苯腙,以及随后的Fischer-
吲哚化,有效地进行合成。化合物3的初步测试显示出对HeLa细胞的细胞毒活性和凋亡诱导作用。