Using CCOC(=O)CC(=O)C(=O)OCC, CNc1ccc(N)cc1C(=O)NN to produce Cn1c2ccc(N)cc2c(=O)n2nc(C(=O)O)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.