Using COC(=O)c1ccc(-c2ncccc2S(=O)(=O)N(C(=O)OCC(C)C)c2ncc(C)nc2OC)cc1 to produce COC(=O)c1ccc(-c2ncccc2S(=O)(=O)Nc2ncc(C)nc2OC)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.