Using O=C1c2c(sc(Br)c2Br)C2CN(Cc3ccccc3)CC12 to produce OC1c2c(sc(Br)c2Br)C2CN(Cc3ccccc3)CC12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.