Potential antitumor agents.<b>III</b>. Synthesis of pyrazolo[3,4-<i>e</i>]pyrrolo[3,4-<i>g</i>]indolizine and 1<i>H</i>-pyrazolo[3,4-<i>e</i>]indolizine derivatives
作者:Marino Artico、Silvio Massa、Giorgio Stefancich、Romano Silvestri、Roberto Di Santo、Federico Corelli
DOI:10.1002/jhet.5570260246
日期:1989.3
The preparation of 5-dimethylaminoethyl-4,6-dioxo-1-phenyl-1,4,5,6-tetrahydropyrazolo[3,4-e]pyrrolo-[3,4-g]indolizine, a derivative of the still unknown tetracyclic parent ring pyrazolo[3,4-e]pyrrolo[3,4-g]indolizine, is reported starting from 1-phenyl-5-(1-pyrryl)pyrazole-4-acetonitrile by PPA catalyzed double cyclization of the related oxalylcyanomethyl derivative and subsequent alkylation. The synthesis
5-二甲基氨基乙基-4,6-二氧杂-1-苯基-1,4,5,6-四氢吡唑并[3,4 - e ]吡咯并-[3,4- g ]吲哚利嗪的制备,其衍生物尚不清楚据报道,PPA催化四环母体环吡唑并[3,4- e ]吡咯并[3,4- g ]吲哚嗪从1-苯基-5-(1-吡咯基)吡唑-4-乙腈开始,由相关的草酰氰基甲基环化衍生物和随后的烷基化。还描述了1-苯基-1 H-吡唑并[3,4- e ]吲哚嗪的4,5-双(异-丙基氨基羰基氧基甲基)和4,5-双-(环己基氨基羰基氧基甲基)衍生物的合成。测试了新的三环和四环衍生物作为潜在的抗肿瘤药。