Enantioselective Total Syntheses of (−)-7βH-Eudesmane-4α,11-diol and (+)-ent-7βH-Eudesmane-4α,11-diol
摘要:
The syntheses of (-)-7 beta H-eudesmane-4 alpha,11-diol (2) and (+)-ent-7 beta H-eudesmane-4 alpha,11-diol (ent-2) were carried out starting from (-)- and (+)-dihydrocarvones. As a result, the structure, including 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).
作者:Arturo San Feliciano、Manuel Medarde、Benedicto Del Rey、Jose M. Miguel Del Corral、Alejandro F. Barrero
DOI:10.1016/0031-9422(90)80186-k
日期:1990.1
Abstract Two new eudesmane glycosides, intermedeol β- d -fucopyranoside and its 2′ α-methylbutyrate, were isolated from the hexane extract of Carthamuslanatus and their structures established by spectral and chemical means.