Structures of Four New Isoprenylated Xanthones, Cudraxanthones H,I,J, and K1,2

Yoshio Hano; Yutaka Matsumoto; Jin-Yun Sun; Taro Nomura

doi:10.1055/s-2006-961016

Planta Medica, Table of Contents

Planta Med 1990; 56(5): 478-481
DOI: 10.1055/s-2006-961016

Paper

Structures of Four New Isoprenylated Xanthones, Cudraxanthones H,I,J, and K^1,2

Yoshio Hano³ , Yutaka Matsumoto³ , Jin-Yun Sun⁴ , Taro Nomura³

³Faculty of Pharmaceutical Sciences, Toho University, 2-2-1, Miyama, Funabashi, Chiba 274, Japan
⁴Zhejiang Academy of Traditional Chinese Medicine, 26, Tian Mu Shan Road, Hangzhou, People's Republic of China

1 Part 2 On Constituents of the Moraceae Plants. Part 1: see Ref.(7)2 “Components of Root Bark of Cudrania tricuspidata; Part 5”; Part 4, see Ref.(7)

Abstract

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Abstract

Four new isoprenylated xanthones, cudraxanthone H,I,J, and K were isolated from the ethanol extract of the root bark of Cudrania tricuspidata (Carr.) Bur. (Moraceae), collected in China. The structures of cudraxanthones H,I,J, and K were shown to be 1-4, respectively, on the basis of chemical and spectral evidence.

Key words

Cudrania tricuspidata - cudraxanthones - isoprenylated xanthones

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