Using N=C(N)N, CC(C)(C)OC(=O)N1CCN(c2cccc(F)c2C#N)CC1 to produce CC(C)(C)OC(=O)N1CCN(c2cccc3nc(N)nc(N)c23)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.