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Zenichi Yoshida (1925-2023)
Zenichi Yoshida (1925-2023)
Professor. Zenichi Yoshida,
a member of the Honorary Advisors of HETEROCYCLES (1975-1998),
has passed away on May 4, 2023 at the age of 97.
I deeply express my regret over his death.
Kunio Ogasawara
Editor
May 11, 2023
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Paper | Regular issue | Vol 27, No. 6, 1988, pp.1461-1463
Published online, 1st January, 1970■ The 1,3-Dipolar Cycloaddition as an Approach to Novel Tricyclic O,N- and S,N-Heterocycles
Published online, 1st January, 1970
DOI: 10.3987/COM-88-4557
■ The 1,3-Dipolar Cycloaddition as an Approach to Novel Tricyclic O,N- and S,N-Heterocycles
Herbert Bartsch* and Thomas Erker
*Institute of Pharmaceutical Chemistry, University of Vienna, Währinger Strasse 10, A-1090 Vienna, Austria
Abstract
A synthetic pathway to previously unknown trieyclic [1,5]benzothiazepines, [1,5]benzoxazepines, and [1,2,4]oxadiazolo[5,4-c][1,4]benzothiazine via 1,3-dipolar cycloaddition is described.
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