152563-97-8Relevant articles and documents
Synthesis of the Azocinoindole Core Structure of Strychnos Alkaloids
Fritz, Helmut,Soleymani-Jamarani, Mohammad,Bats, Jan Willem,Teuber, Hans-Joachim
, p. 705 - 710 (2007/10/02)
Michael addition of ethylmalonic dimethyl or diethyl ester with cyclohexenone and subsequent Fischer indole ring closure afford the (tetrahydrocarbazolyl)malonic ester 4a-c.Decarboxylation of 4a leads to the corresponding butyric acid methyl ester 5 which