Using Nc1nc(-c2ccccc2)cs1, COC(=O)CCc1ccc(OCc2ccc(C=O)cc2)cc1 to produce COC(=O)CCc1ccc(OCc2ccc(CNc3nc(-c4ccccc4)cs3)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.