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ent-Kaurene diterpenoids from Isodon rubescens
1National Laboratory of Applied Organic Chemistry, Lanzhou University, People's Republic of China.
Phytochemistry
|May 23, 2000
Abstract:
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 2 beta, 3 beta-diacetoxy-11 beta, 13 alpha-dihydroxy-ent-kaur-16-en-15-one and 3 beta, 11 beta-diacetoxy-2 beta, 6 alpha-dihydroxy-ent-kaur-16-en-15-one, respectively, on the basis of detailed spectroscopic analyses.