79888-13-4Relevant articles and documents
Facile synthesis of 2,3,6,11-tetrahydro-1H,5H-indolizino[8,7-b]indole-11b- carboxylic acid methyl ester via a 9-BBN-mediated tertiary lactam reduction
Fokas, Demosthenes,Wang, Zhimin
, p. 3816 - 3822 (2008)
A facile synthesis of 2,3,6,11-tetrahydro-1H,5H-indolizino[8,7-b]indole- 11b-carboxylic acid methyl ester, a versatile intermediate utilized in the synthesis of indole alkaloids, was achieved in two steps. Condensation of tryptamine with dimethyl α-ketoglutarate led to the formation of the corresponding indolizino[8,7-b]indolone ester, which subsequently underwent an efficient lactam reduction with 9-BBN to generate the tertiary amine ester in good yield. Copyright Taylor & Francis Group, LLC.