Using CCOC(=O)c1cc2c(Nc3cc4sc(=O)[nH]c4cc3OC)ncnc2[nH]1 to produce COc1cc2[nH]c(=O)sc2cc1Nc1ncnc2[nH]c(C(=O)O)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.