C/C=C/C=C/C(=O)[C@]12C(=O)O[C@]3(C)[C@H]1[C@]1(C)C(=O)[C@@]2(C)[C@@H]2[C@@]3(O)[C@H](C)C(=O)[C@@]21O	12-epi-trichosorbicilloid A