Using COC(=O)c1sc2nc[nH]c(=O)c2c1C, O=C(CCl)Nc1cc(C(F)(F)F)cc(C(F)(F)F)c1 to produce COC(=O)c1sc2ncn(CC(=O)Nc3cc(C(F)(F)F)cc(C(F)(F)F)c3)c(=O)c2c1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.