Using CC(C)(C)OC(=O)N1CCc2sc(-c3ccc(C(F)(F)F)cc3)nc2C1 to produce FC(F)(F)c1ccc(-c2nc3c(s2)CCNC3)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.