Using CCON, CC(=O)N1Cc2ccccc2C2(CCN(C3CCC(=O)CC3)CC2)C1 to produce CCON=C1CCC(N2CCC3(CC2)CN(C(C)=O)Cc2ccccc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.