Using COc1cc2c(=O)n(CCCN3CCOCC3)c3c(c2cc1OCCCBr)C(=O)c1cc2c(cc1-3)OCO2, CNC to produce COc1cc2c(=O)n(CCCN3CCOCC3)c3c(c2cc1OCCCN(C)C)C(=O)c1cc2c(cc1-3)OCO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.