Using CCOC(=O)n1nc(I)c2c1CCN(C(=O)OC(C)(C)C)C2, OB(O)c1ccc2nccn2c1 to produce CC(C)(C)OC(=O)N1CCc2[nH]nc(-c3ccc4nccn4c3)c2C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.