Carotanoids and an acoranoid fromRosa rugosa leaves
摘要:
In the investigation of minor sesquiterpenoids in Rosa rugosa leaves, 11 novel sesquiterpenes, eight carotane aldehydes, two carotane acids and an acoranoid, were isolated and their structures elucidated by means of chemical and spectroscopic methods. The present study showed that R. rugosa is a major source of C-14-oxygenated carotanoids. Factors associated with stereoselective oxygen-introduction in epoxidation and/or peroxidation of the carotane skeleton is also discussed.