Using CCOC(=O)C(=O)c1c[nH]c2c(-n3cnc(CO)n3)ncc(OC)c12 to produce COc1cnc(-n2cnc(CO)n2)c2[nH]cc(C(=O)C(=O)O)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.