Using COC(=O)c1c(NS(=O)(=O)c2ccc(F)cc2Br)ccc2c1[nH]c(=O)c1occc12 to produce O=C(O)c1c(NS(=O)(=O)c2ccc(F)cc2Br)ccc2c1[nH]c(=O)c1occc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.