Enantiospecific syntheses of paeonilactone A, paeonilactone B, 7S-paeonimetabolin-I, and 7R-paeonimetabolin-I from R-(−)-carvone
摘要:
The first enantiospecific syntheses of the title monoterpenes have been accomplished starting with R-(-)-carvone, which made their absolute structures unequivocal.
(+)-paeoniflorigenone, representative monoterpenes of Paeoniae Radix, have been accomplished starting with R-(−)-carvone via lipase catalyzed highly diastereoselective enzymatic acetylation. The latter synthesis also means the first total synthesis of (+)-paeonisuffral, a new monoterpene recently isolated from Moutan Cortex.
The first enantiospecific syntheses of the title monoterpenes have been accomplished starting with R-(-)-carvone, which made their absolute structures unequivocal.