F. Shimoma et al., ENANTIOSELECTIVE TOTAL SYNTHESES OF (-)-7-BETA-H-EUDESMANE-4-ALPHA,11-DIOL AND (-ENT-7-BETA-H-EUDESMANE-4-ALPHA,11-DIOL()), Journal of natural products, 61(1), 1998, pp. 22-28
The syntheses of (-)-7 beta H-eudesmane-4 alpha,11-diol (2) and (+)-en
t-7 beta H-eudesmane-4 alpha,11-diol (ent-2) were carried out starting
from (-)- and (+)-dihydrocarvones. As a result, the structure, includ
ing absolute configuration, of the naturally occurring eudesmane-4,11-
diol isolated from Pluchea arguta was determined to be (+)-ent-7 beta
H-eudesmane-4 alpha,11-diol (ent-2).