Using BrCc1ccccc1, CN1OC2(CC(c3ccccc3)Oc3ccc(O)cc32)N=C1N to produce CN1OC2(CC(c3ccccc3)Oc3ccc(OCc4ccccc4)cc32)N=C1N, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.