Using BrCc1ccccc1, O=C(O)c1cn(O)c2ccc3[nH]c(=O)sc3c2c1=O to produce O=C(O)c1cn(OCc2ccccc2)c2ccc3c(sc(=O)n3Cc3ccccc3)c2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.