Using CCOC(=O)c1cnc(Nc2cc(OC)ccc2OC)[nH]c1=O to produce COc1ccc(OC)c(Nc2ncc(C(=O)O)c(=O)[nH]2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.