doi: 10.1248/cpb.50.1479.
1,5-dimethyl-6H-pyridazino[4,5-b]carbazole, a 3-aza bioisoster of the antitumor alkaloid olivacine
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- PMID: 12419913
- DOI: 10.1248/cpb.50.1479
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1,5-dimethyl-6H-pyridazino[4,5-b]carbazole, a 3-aza bioisoster of the antitumor alkaloid olivacine
Chem Pharm Bull (Tokyo).
2002 Nov.
Free article
Abstract
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.
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