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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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Paper | Regular issue | Vol 43, No. 10, 1996, pp.2131-2138
Published online, 1st January, 1970■ Synthesis of 2- or/and 6-Methylated Analogues of Isoguvacine (1,2,3,6-Tetrahydropyridine-4-carboxylic Acid) a GABAA Agonist
Published online, 1st January, 1970
DOI: 10.3987/COM-96-7522
■ Synthesis of 2- or/and 6-Methylated Analogues of Isoguvacine (1,2,3,6-Tetrahydropyridine-4-carboxylic Acid) a GABAA Agonist
Markus Rohr, Saïd Chayer, Fabrice Garrido, André Mann, Maurizio Taddei, and Camille-Georges Wermuth
*Laboratoire de Pharmacochimie Moleculaire, (UPR 421 DU CNRS), Centre de Neurochimie du CNRS, 5, rue Blaise Pascal, 67084 Strasbourg-Cedex, France
Abstract
1,2,3,6-tetrahydropyridine-4-carboxylic acid (isoguvacine) and related 2-and/or 6-methylated analogues (1-4) were synthesized using the methoxycarbonylation [Pd(OAc)2, PPh3, CO, MeOH)] of their corresponding vinylic triflates. Analogue (5), the 6-methyl-1,2,3,6-tetrahydropyridine-4-carboxylic acid was obtained after a reductive deoxygenation of the corresponding β-keto ester.
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