Using CCc1nc2ccccc2n1-c1nc(N2CCOCC2)c2nc(C3(O)CNC3)n(C)c2n1, CC(C)=O to produce CCc1nc2ccccc2n1-c1nc(N2CCOCC2)c2nc(C3(O)CN(C(C)C)C3)n(C)c2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.