A-176120 is a potent farnesyl pyrophosphate (FPP) analogues, it selectively inhibits farnesyltransferase. It has anti-angiogenic potential and may reduce H-ras NIH3T3 tumour growth.
α-hydroxy Farnesyl phosphonic acid is a nonhydrolyzable analog of farnesyl pyrophosphate which acts as a competitive inhibitor of farnesyl transferase (FTase). At concentrations greater than 1 μM, α-hydroxy farnesyl phosphonic acid inhibits the processing of Ras in Ha-ras-transformed NIH3T3 cells.