1,5-Dimethyl-6H-pyridazino[4,5-b]carbazole, a 3-Aza Bioisoster of the Antitumor Alkaloid Olivacine.
作者:Norbert Haider、Eddy Sotelo
DOI:10.1248/cpb.50.1479
日期:——
A series of b-fused carbazoles structurally related to pyrido[4,3-b]carbazole-type alkaloids was prepared, utilizing the Diels-Alder reaction of 1-methylpyrano[3,4-b]indol-3(9H)-one with electron-deficient acetylenic dienophiles as the key step. The title compound (14) thus obtained in only four steps represents a new 3-aza analog of the antitumor natural product, olivacine.