... Download full text in PDF. Journal of Fluorine Chemistry, 47(1990) 179-183 179 Received: September 7, 1989; accepted: October 10, 1989 PRELIMINARY NOTE Direct Fluorination of Biologically Interesting Compounds Using N-Fluoro-3,5-Dichloropyridinium Triflate DAVID HEBEL and KENNETH L. KIRK* Laboratory of Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, NIH ... KL Kirk, CR Creveling. Med. ... D. Hebel, O. Lerman, S. Rozen. ...