Using Nc1nnn[nH]1, CC(C)(C)c1ccccc1OC1CCN(C(=O)C(=O)O)CC1 to produce CC(C)(C)c1ccccc1OC1CCN(C(=O)C(=O)Nc2nnn[nH]2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.