Using CCOC(=O)N1CCc2cc3c(cc2CC1)NC(=O)CC3, O=C([O-])O to produce CCOC(=O)N1CCc2cc3c(cc2CC1)N(C)C(=O)CC3, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.