COc3cc(C)c(S(=O)(=O)N[C@@H](CC([O-])=O)C(=O)N[C@H](Cc1ccc(C(N)=[NH2+])cc1)C(=O)N2CCCCC2)c(C)c3C CCR_999_1K1N 1.238 196.552 42 601.726 12 6 3 12 538.638