Composite constituents: Three gammacer-16-ene derivatives, novel triterpenoids isolated from roots of Picris hieracioides subsp. japonica

Kenji Shiojima,Kazuo Masuda,Tokuhide Lin,Hideki Suzuki,Hiroyuki Ageta,Masatoshi Inoue,Toshimasa Ishida

TETRAHEDRON LETTERS（1989）

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摘要

New triterpenoids, gammacer-16-en-3β-yl acetate and its 3β-, 3α-ols were isolated from Picris hieracioides subsp. japonica . Their structures were established by chemical, spectral and X-ray methods.

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