CC/C=C\C=C/C=C\c1ccccc1C(=O)N[C@@H](Cc1ccc(O)cc1)C(=O)N(C)[C@@H](Cc1ccccc1)C(=O)N(C)[C@@H](C)OC[C@H]1NC(=O)CNC1=O pepticinnamin L