Using CCOP(=O)(OCC)c1ccc(C(=O)Nc2cc(-c3cccs3)ccc2N)cc1 to produce CCOP(=O)(O)c1ccc(C(=O)Nc2cc(-c3cccs3)ccc2N)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.