Using O=C1CCCc2ccc(OCCCN3C(=O)c4ccccc4C3=O)cc21, CNC to produce CN(C)C1=CCCc2ccc(OCCCN3C(=O)c4ccccc4C3=O)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.