Using Cc1c(C=O)oc2cccc(OCCCN(C)Cc3cccnc3)c12, CCON to produce CCON=Cc1oc2cccc(OCCCN(C)Cc3cccnc3)c2c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.