Tannins and Related Compounds. L.1) Structures of Proanthocyanidin A-l and Related Compounds

Gen Ichiro Nonaka; Satoshi Morimoto; Itsuo Nishioka; Jun Ei Kinjo; Toshihiro Nohara

doi:10.1248/cpb.35.149

Tannins and Related Compounds. L.¹⁾ Structures of Proanthocyanidin A-l and Related Compounds

Gen Ichiro Nonaka, Satoshi Morimoto, Itsuo Nishioka, Jun Ei Kinjo, Toshihiro Nohara

Pharmaceutical Health Care and Sciences

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40 Citations (Scopus)

Abstract

The structures of proanthocyanidin A-l (2) and two related proanthocyanidins, tentatively named A-4 (3) and A-5’ (4), have been established unambiguously on the basis of spectroscopic evidence and chemical correlations with the structurally known proanthocyanidin A-2 (1). Chemical transformation of singly linked proanthocyanidin B-l (6) into 2 also confirmed the stereostructure of 2.

Original language	English
Pages (from-to)	149-155
Number of pages	7
Journal	Chemical and Pharmaceutical Bulletin
Volume	35
Issue number	1
DOIs	https://doi.org/10.1248/cpb.35.149
Publication status	Published - Jan 1 1987

All Science Journal Classification (ASJC) codes

Chemistry(all)
Drug Discovery

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AU - Kinjo, Jun Ei

AU - Nohara, Toshihiro

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Tannins and Related Compounds. L.¹⁾ Structures of Proanthocyanidin A-l and Related Compounds

Abstract

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