作者:Safwat A. Ahmed、Samir A. Ross、Desmond Slade、Mohamed M. Radwan、Fazila Zulfiqar、Mahmoud A. ElSohly
DOI:10.1021/np070454a
日期:2008.4.1
Eleven new cannabinoid esters, together with three known cannabinoid acids and Delta(9)-tetrahydrocannabinol (Delta(9)-THC), were isolated from a high-potency variety of Cannabis sativa. The structures were determined by extensive spectroscopic analyses to be beta-fenchyl Delta(9)-tetrahydrocannabinolate (1), epi-bornyl Delta(9)-tetrahydrocannabinolate (2), alpha-terpenyl Delta(9)-tetrahydrocannabinolate (3), 4-terpenyl Delta(9)-tetrahydrocannabinolate (4), alpha-cadinyl Delta(9)-tetrahydrocannabinolate (5), gamma-eudesmyl Delta(9)-tetrahydrocannabinol ate (6), gamma-eudesmyl cannabigerolate (7), 4-terpenyl cannabinolate (8), bomyl Delta(9)-tetrahydrocannabinol ate (9), cc-fenchyl Delta(9)-tetrahydrocannabinolate (10), alpha-cadinyl cannabigerolate (11), Delta(9)-tetrahydrocannabinol (Delta(9)-THC), Delta(9)-tetrahydrocannabinolic acid A (Delta(9)-THCA), cannabinolic acid A (CBNA), and cannabigerolic acid (CBGA). Compound 8 showed moderate antimicrobial activity against Candida albicans ATCC 90028 with an IC50 value of 8.5 mu g/mL. CB-1 receptor assay indicated that the esters, as well as the parent acids, are not active.