Using CCOC(=O)c1cnc(N2CC[C@H](NC(=O)c3nc(C(F)(F)F)c(C)[nH]3)[C@H](OC)C2)s1 to produce CO[C@@H]1CN(c2ncc(C(=O)O)s2)CC[C@@H]1NC(=O)c1nc(C(F)(F)F)c(C)[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.