Using CCOC(=O)C(=O)NNC(=S)N1CCN(C(=O)c2ccccc2C(F)(F)F)CC1 to produce CCOC(=O)c1nnc(N2CCN(C(=O)c3ccccc3C(F)(F)F)CC2)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.