C=C(NC(=O)c1cnc2ccccc2n1)C(=O)N[C@@H](C)C(=O)N(C)[C@H]1CSC(SC)[C@@H](C(=O)N(C)[C@H](C(=O)O)C(C)C)N(C)C(=O)[C@H](C)NC(=O)[C@H](NC(=O)c2cnc3ccccc3n2)COC(=O)[C@H](C(C)C)N(C)C1=O quinomycin G