C[C@@]1(C(=O)O)[C@@H](O)CC[C@]2(C)c3cc4c5ccccc5n(-n5c6ccccc6c6cc7c(cc65)CC[C@H]5[C@](C)(C(=O)O)[C@@H](O)CC[C@]75C)c4cc3CC[C@@H]12 dixiamycin A | dixiamycin B