COC(=O)CC1=C(C)[C@@H]2C[C@@]3(C)C(=O)O[C@H]4O[C@@H](C)[C@@]5(O)O[C@@H]([C@@H]6O[C@]16C(C)(C)O)[C@]2(C)[C@@]5(C(=O)OC)[C@]43O Talaromynoid F