CC(=O)O[C@H]1CC[C@@]2(C)[C@@H](CC[C@]3(C)/C(=C(C)/C=C/C=C(\C)[C@H]4CC=C(C)C(=O)O4)C(=O)C[C@@H]23)C1(C)C	22,23-dihydrostellettin D