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Paper | Regular issue | Vol 38, No. 5, 1994, pp.1089-1098
Published online, 1st January, 1970
DOI: 10.3987/COM-94-6674
Five New Isoprenoid-substituted Flavonoids, Kanzonols M - P and R, from Two Glycyrrhiza Species

Toshio Fukai, Junko Nishizawa, Masami Yokoyama, Liming Tantai, and Taro Nomura*

*Faculty of Pharmaceutical Sciences, Toho University, 2-2-1, Miyama, Funabashi, Chiba 274-8510, Japan

Abstract

Three new formylated isoflavan derivatives, kanzonols M, N, and O, and a new prenylated pterocarpan derivative, kanzonol P, were isolated from Glycyrrhiza uralensis along with kanzonol Q (dihydroxanthoxyletin). A new prenylated isoflavan derivative, kanzonol R, was isolated from G. glabra. These structures were elucidated on the basis of spectrometric evidence.