ent-Kaurene diterpenoids from Isodon rubescens
2000
Li, B.L. | Chen, S.N. | Shi, Z.X. | Chen, Y.Z.
Two kaurenoids, taibairubescensins A and B, were isolated from the ethanol extract of the leaves and branches of Isodon rubescens. Their structures are designated as 2beta,3beta-diacetoxy-11beta,13 alpha-dihydroxy-ent-kaur-16-en-15-one and 3beta,11beta-diacetoxy-2beta,6alpha-dihydroxy-ent- kaur-16-en-15-one, respectively, on the basis of detailed spectroscopic analyses.
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