Using CS(=O)(=O)N(CCBr)c1ccc2c(c1)C(=O)N(CC(=O)OCc1ccccc1)C2=O, COCCN to produce COCCNCCN(c1ccc2c(c1)C(=O)N(CC(=O)OCc1ccccc1)C2=O)S(C)(=O)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.