Using COc1ccccc1-c1cc(NC(=O)C2CCCN(C(=O)OCc3ccccc3)C2)nc(C)n1 to produce COc1ccccc1-c1cc(NC(=O)C2CCCNC2)nc(C)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.