α-hydroxy Farnesyl phosphonic acid is a nonhydrolyzable analog of farnesyl pyrophosphate which acts as a competitive inhibitor of farnesyltransferase (FTase). At concentrations greater than 1 μM, α-hydroxy farnesyl phosphonic acid inhibits the processing of Ras in Ha-ras-transformed NIH3T3 cells.
FTase-IN-1 (compound 17a) is a highly effective inhibitor of fanesyl transferase (FTase), exhibiting a remarkable IC50 value of 0.35 μM. This compound demonstrates significant cytotoxicity potential and exhibits powerful antitumor activity [1].