Using CCOC(=O)C1=NCc2c(c3ccccc3n2S(=O)(=O)c2ccc(C)cc2)N1 to produce O=C(O)c1ncc2[nH]c3ccccc3c2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.