Using COc1cc2cc3c(Cl)ncnc3cc2cc1OCCN1CCOCC1, Nc1cccc(Br)c1 to produce COc1cc2cc3c(Nc4cccc(Br)c4)ncnc3cc2cc1OCCN1CCOCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.