Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
Studies on Coumarins from the Root of Angelica pubescens MAXIM. IV. Structures of Angelol-Type Prenylcoumarins
KIMIYE BABAYOUKO MATSUYAMAMITSUGI KOZAWA
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Keywords: ^<13>C-NMR
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1982 Volume 30 Issue 6 Pages 2025-2035

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Abstract

The root of Angelica pubescens MAXIM. (Umbelliferae) afforded seven new coumarins, angelols B-H (2-8), together with a known coumarin, angelol A (formerly simply called angelol). The structures of these coumarins were determined on the basis of spectral and chemical evidence as 6-(1-acyloxy-2, 3-dihydroxy-3-methylbutyl)-7-methoxycoumarins and 6-(2-acyloxy-1, 3-dihydroxy-3-methylbutyl)-7-methoxycoumarins and 6-(2-acyloxy-1, 3-dihydroxy-3-methylbutyl)-7-methoxycoumarins. Furthermore, in the course of this investigation we revised the reported structure of angelol A (1)

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