6-[(R)-Amino(4-chlorophenyl)(1-methyl-1H-imidazol-5-yl)methyl]-4-(3-chlorophenyl)-1-methyl-2(1H)-quinolinone; (R)-(+)-R 115777; Zarnestra

A farnesyltransferase inhibitor. Sensitizes human multiple myeloma cell to proteasome inhibition by blocking degradation of bortezomib-induced aggresomes. Also shown to inhibit the growth of myeloid leukemia cell lines and primary leukemia cells by inducing apoptosis and cell-cycle blockage when combined with rapamycin(R124000).