Using COC(=O)c1ccc2c(c1)[C@H](NS(=O)(=O)c1cccc(Cl)c1Cl)CC2 to produce O=C(O)c1ccc2c(c1)[C@H](NS(=O)(=O)c1cccc(Cl)c1Cl)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.