COC(=O)c4cc(C[C@H](NC(C)=O)C(=O)N[C@H]3CCCCN(Cc2ccc(c1ccccc1)cc2)C3=O)ccc4C(F)(C([O-])=O)C([O-])=O 903_300_1O46 2.373 185.066 48 659.667 12 2 2 13 576.067