Using COc1cc2c(cc1OC)C(c1ccccc1)=NNC(=O)C2, BrCc1ccccc1 to produce COc1cc2c(cc1OC)C(Cc1ccccc1)C(=O)N(Cc1ccccc1)N=C2c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.