Using CC(C)(C)OC(=O)Cn1cccc(NS(=O)(=O)Cc2ccccc2)c1=O to produce O=C(O)Cn1cccc(NS(=O)(=O)Cc2ccccc2)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.