Using O=C(N[C@H]1CC[C@H](C(F)(F)F)CC1)c1ccc(Cl)nc1Cl, COCCO to produce COCCOc1nc(Cl)ccc1C(=O)N[C@H]1CC[C@H](C(F)(F)F)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.