Using O=CO, CC(C)NCC1(c2ccc(OCCCN3CCCC3)cc2)CCOCC1 to produce CC(C)N(C)CC1(c2ccc(OCCCN3CCCC3)cc2)CCOCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.