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Note | Regular issue | Vol 65, No. 4, 2005, pp.893-900
Published online, 22nd February, 2005
DOI: 10.3987/COM-05-10350
Isolation of New Isoflavonolignans, Butesuperins A and B, from a Thai Miracle Herb, Butea superba

Kai Ma, Tsutomu Ishikawa,* Hiroko Seki, Kazuo Furihata, Hiroshi Ueki, Shizuo Narimatsu, Yoshihiro Higuchi, and Chaiyo Chaichantipyuth

*Graduate School of Pharmaceutical Sciences, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan

Abstract

Two new isoflavonolignans, designated as butesuperins A and B, were isolated from the active fraction of the root of Butea superba for PDE inhibition together with eight known isoflavone derivatives.