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Obituary
Yoshito Kishi (1937-2023)
Yoshito Kishi (1937-2023)
Professor. Yoshito Kishi,
a member of the Honorary Editorial Associates of HETEROCYCLES,
has passed away on January 9, 2023 at the age of 85.
I deeply express my regret over his death.
Kunio Ogasawara
Editor
January 13, 2023
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Communication | Regular issue | Vol 23, No. 3, 1985, pp.557-562
Published online, 1st January, 1970■ 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
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
Abstract
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.
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