CC1=C(O)[C@@]2(C)O[C@@]3(O)[C@@](C)(O)CC4=C(O[C@@H](/C=C/CO)CC4=O)[C@@]3(C)[C@H]2/C(=C(O)\C=C\C=C\CO)C1=O	15,24-hydroxy-trichobisvertinol D