Using CNc1nc(-c2ccccc2)cs1, CCOC(=O)CCc1ccc(OCCCBr)cc1 to produce CCOC(=O)CCc1ccc(OCCCN(C)c2nc(-c3ccccc3)cs2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.