for the following products
(S)-Isopropyl 2-(((S)-(perfluorophenoxy)(phenoxy)phosphoryl)amino)propanoate | N-[(S)-(2,3,4,5,6-Pentafluorophenoxy)phenoxyphosphinyl]-L-alanine 1-methylethyl ester | Sofosbuvir intermediate 3 and Isopropyl N-[(pentafluorophenoxy)(phenoxy)phosphoryl]-L-alaninate
