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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 36, No. 4, 1993, pp.761-768
Published online, 1st January, 1970■ Chemical Modification of Erythromycins. X. Removal of Benzyloxycarbonyl and 2-Chlorobenzyl Groups of Erythromycin Derivatives by Use of Catalytic Transfer Hydrogenation
Published online, 1st January, 1970
DOI: 10.3987/COM-92-6221
■ Chemical Modification of Erythromycins. X. Removal of Benzyloxycarbonyl and 2-Chlorobenzyl Groups of Erythromycin Derivatives by Use of Catalytic Transfer Hydrogenation
Yoshiaki Watanabe,* Masato Kashimura, Toshifumi Asaka, Takashi Adachi, and Shigeo Morimoto
*Research Center, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-Cho, Ohmiya, Saitama 330-8530, Japan
Abstract
The benzyloxycarbonyl and the 2-chlorobenzyl groups of ethythromycin derivatives were easily removed by catalytic transfer hydrogenation (CTH). Their deprotection reaction was dependent on both the hydrogen donor and the solvent for use. Application of CTH to removal of the protective groups is discussed.
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