Using CC1(C)Cc2c(N)c(Cl)cc(C(=O)O)c2O1, CCOC(=O)N1CCC(N)C(OC)C1 to produce CCOC(=O)N1CC[C@H](NC(=O)c2cc(Cl)c(N)c3c2OC(C)(C)C3)[C@H](OC)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.