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Paper | Regular issue | Vol 26, No. 6, 1987, pp.1535-1539
Published online, 1st January, 1970
DOI: 10.3987/R-1987-06-1535
A New Condensed Triheterocyclic System: 6-Aza-8H-indeno[2,1-b]thiophene

Florence Heude, Michel Cugnon de Sevricourt, Sylvain Rault, and Max Robba

*Laboratorie de Chimie Thérapeutique, U.F.R. des Sciences Pharmaceutiques, Centre d’Etudes et de Recherch sur le Medicament de Normandie, 1, rue Vaubénard, 14032 Caen Cedex, France


Cyclization of 2,6-dimethyl-4-(3-thienyl)pyridine-3,5-dicarboxylic acid resulted in the formation of 5,7-dimethyl-δ-oxo-6-aza-8H-indeno[2,1-b]thiophene derivatives.