Using O=C1CSc2cc(CCBr)ccc2N1, CC(=O)c1ccc2c(c1)SCC(=O)N2 to produce O=C1CSc2cc(C(=O)CBr)ccc2N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.