Using CC(C)(C)OC(=O)NCc1nc(C(F)(F)F)c(C(N)=S)s1, [NH4+] to produce CC(C)(C)OC(=O)NCc1nc(C(F)(F)F)c(C(=N)N)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.