| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| —— | 11,13-dihydrosantamarin | 7715-89-1 | C15H22O3 | 250.338 |
The synthesis of the eudesmanolide torrentin (1) by sensitized photooxygenation of synthetic dihydrosantamarine (3) is reported. Both dihydrosantamarine and dihydroreynosin (11) were obtained from the 1,2-epoxide 9, which, in turn, was prepared from the diselenide 7. An improved procedure for the synthesis of the elemanolide saussurea lactone (4) is also reported. Keywords: eudesmanolide, elemanolide, santonin, torrentin, saussurea lactone.