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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
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May 11, 2023
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Paper | Regular issue | Vol 27, No. 8, 1988, pp.1945-1952
Published online, 1st January, 1970■ Efficient Synthesis of Oligo-N-methylpyrrolecarboxamides and Relateed Compounds
Published online, 1st January, 1970
DOI: 10.3987/COM-88-4615
■ Efficient Synthesis of Oligo-N-methylpyrrolecarboxamides and Relateed Compounds
Eiji Nishiwaki, Shigeaki Tanaka, Hideaki Lee, and Masayuki Shibuya*
*Faculty of Pharmaceutical Sciences, University of Tokushima, Sho-machi 1, Tokushima 770-8505, Japan
Abstract
1-Methyl-4-nitro-2-trichloroacetylpyrrole 5, a new precursor for the syntheses of oligo-N-methylpyrrolecarboxamide antibiotics and their analogues, was prepared with facility. The versatility of 2 was demonstrated by the syntheses of oligopeptides 16-19. 1-Methyl-4-nitro-2-trichloroacetylimidazole 8 was also prepared for a precursor of oligo-N-methylimidaezolecarboxamidds.
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