Using [OH-], CCOC(=O)C(=CNc1nc2ccc(OC)cc2s1)C(=O)OCC to produce COc1ccc(-n2c(=O)[nH]cc(C(=O)O)c2=O)c(S)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.