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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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Paper | Regular issue | Vol 53, No. 3, 2000, pp.613-620
Published online, 1st January, 1970■ Synthesis and Structural Features of New Cyclofunctionalized Benzimidazoles
Published online, 1st January, 1970
DOI: 10.3987/COM-99-8784
■ Synthesis and Structural Features of New Cyclofunctionalized Benzimidazoles
Alba Chimirri,* Anna Maria Monforte, Pietro Monforte, Francesco Nicolò, Angela Rao, and Maria Zappalà
*Dipartimento Farmaco-Chimico, Università di Messina, Viale Annunziata, 98168 Messina, Italy
Abstract
The synthesis of new tricyclic derivatives having sulfur-containing six or seven-membered rings fused to the «a» edge of benzimidazole system, is reported. The stereochemical characteristics of thiazino- and thiazepinobenzimidazoles (4-7) are described and comparative NMR data are discussed. The synthetic approach to new benzo- or pyridothiazinobenzimidazole tetracyclic systems (8) is also reported.
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