Double reductive cyclization: a facile synthesis of the indoloquinoline alkaloid cryptotackieine
作者:P.T. Parvatkar、P.S. Parameswaran、S.G. Tilve
DOI:10.1016/j.tetlet.2007.08.126
日期:2007.10
A new synthesis of the indoloquinoline alkaloid cryptotackieine, isolated from Cryptolepis sanguinolenta, is described which involves a Perkin reaction, a tandem double reduction–double cyclization reaction followed by regioselective methylation at the quinoline nitrogen.