Using COC(=O)COc1nc2c(c(Nc3ccc(C(F)(F)F)cc3)n1)CCN(c1ncccc1Cl)C2 to produce O=C(O)COc1nc2c(c(Nc3ccc(C(F)(F)F)cc3)n1)CCN(c1ncccc1Cl)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.