Using O=C1CCCc2nc3cc(Cl)ccc3c(NCc3ccc(F)cc3)c21 to produce OC1CCCc2nc3cc(Cl)ccc3c(NCc3ccc(F)cc3)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.