Using CC(C)(C)OC(=O)N1CCC(C(=O)C(F)(F)F)C(=O)C1, CC(=N)N to produce Cc1nc2c(c(C(F)(F)F)n1)CCN(C(=O)OC(C)(C)C)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.