Starting from 4,4-dimethyl-2-cyclohexenone, an enantioselective synthesis of (-)-isopisiferin has been accomplished in 15 steps with an overall yield of 11.4 %. This work not only provides synthetic evidence for confirming the absoluteconfiguration of natural isopisiferin itself, but also serves as an additional correlation origin to which many related icetexane-type diterpenes, particular for the