Using CC(C)(C)NN, O=C1C=CC2(CC1)CCN(C(=O)OCc1ccccc1)CC2 to produce CC(C)(C)N/N=C1/C=CC2(CC1)CCN(C(=O)OCc1ccccc1)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.