Using O=[N+]([O-])c1ccc(OCCBr)c(-n2cccc2)c1, COc1ccc(CCNC(C)C)cc1OC to produce COc1ccc(CCN(CCOc2ccc([N+](=O)[O-])cc2-n2cccc2)C(C)C)cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.