Using CCOC(=O)c1cnc(N2CCC3(CC2)C(=O)NCN3c2ccccc2)s1 to produce O=C(O)c1cnc(N2CCC3(CC2)C(=O)NCN3c2ccccc2)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.