CC(=O)N[C@@H](Cc1ccc(C([O-])=O)c(CO)c1)C(=O)N[C@H]4CCC=CN(Cc3ccc(c2ccccc2)cc3)C4=O 197_300_1O4A 2.544 138.861 41 554.623 9 3 1 10 504.477