Using O=C(NC(=S)Nc1cc(OCc2ccccc2)c(Br)cn1)c1ccccc1 to produce NC(=S)Nc1cc(OCc2ccccc2)c(Br)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.