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Communication | Regular issue | Vol 23, No. 3, 1985, pp.557-562
Published online, 1st January, 1970
DOI: 10.3987/R-1985-03-0557
Studies on Indenopyridine Derivatives and Related Compounds. IV. Synthesis and Stereochemistry of Ethyl 9,9-Dimethyl-1,2,3,9a-tetrahydro-9H-indezo[2,1-b]pyridine-3-carboxylate and Its Derivatives

Ryuji Yoneda, Tatsuya Terada, Shinya Harusawa, and Takushi Kurihara*

*Faculty of Pharmaceutical Science, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan


The simplified analogs of lysergic acid, namely ; 4-diethylphosphoryl or 3-methyl derivatives (15a, 15b, and 22) of ethyl 1,9,9-trimethyl-1,2,3,9a-tetrahydro-9H-indeno[2,1-b]pyridine-3-carboxylate are synthesized. The structure and stereochemistry of these products as well as some intermediates are also discussed.