Using COC(=O)c1ccc(NC(=O)Nc2ccc3c(c2)C(C)(C)CCC3N(C)C2CC2)cc1 to produce CN(C1CC1)C1CCC(C)(C)c2cc(NC(=O)Nc3ccc(C(=O)O)cc3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.