K. Misiura et al., Studies on enzymatic hydrolysis of thymidin-3 '-yl thymidin-5 '-yl phosphorofluoridates and the corresponding phosphorothiofluoridates, CHEM COMMUN, (20), 1999, pp. 2115-2116
Spleen or snake venom nuclease-assisted cleavage of P-F bonds in nucleotide
s bearing a phosphorofluoridate moiety occurs at negatively charged phospha
tes only.