JAN as a free ligand exists in 4 entries. Examples include: 4LNG 1SA4 1X81

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View summary at Ligand Expo

Chemical Component Summary

FormulaC27 H22 Cl2 N4 O
Molecular Weight489.40
Isomeric SMILESCn1cncc1[C@@](N)(c1ccc(Cl)cc1)c1ccc2n(C)c(=O)cc(-c3cccc(Cl)c3)c2c1

Chemical Details

Formal Charge0
Atom Count56
Chiral Atom Count1
Chiral AtomsC5
Bond Count60
Aromatic Bond Count29
Leaving Atomsn/a

Drug Info: DrugBank

DrugBank IDDB04960 Different stereochemistry
DescriptionTipifarnib (R-115777) is a substance that is being studied in the treatment of acute myeloid leukemia (AML) and other types of cancer. It belongs to the family of drugs called farnesyltransferase inhibitors. It is also called Zarnestra. In June 2005, the FDA issued a Not Approvable Letter for Zarnestra.
Brand NamesZarnestra
Affected OrganismHumans and other mammals
IndicationInvestigated for use/treatment in colorectal cancer, leukemia (myeloid), pancreatic cancer, and solid tumors.
PharmacologyR115777, a nonpeptidomimetic farnesyl transferase inhibitor, suppresses the growth of human pancreatic adenocarcinoma cell lines. This growth inhibition is associated with modulation in the phosphorylation levels of signal transducers and activators of transcription 3 (STAT3) and extracellular signal-regulated kinases (ERK).
Mechanism of actionThe farnesyltransferase inhibitors (FTIs) are a class of experimental cancer drugs that target protein farnesyltransferase with the downstream effect of preventing the proper functioning of the Ras protein, which is commonly abnormally active in cancer. After translation, RAS goes through four steps of modification: isoprenylation, proteolysis, methylation and palmitoylation. Isoprenylation involves the enzyme farnesyltransferase (FTase) transferring a farnesyl group from farnesyl pyrophosphate (FPP) to the pre-RAS protein. Also, a related enzyme geranylgeranyltransferase I (GGTase I) has the ability to transfer a geranylgeranyl group to K and N-RAS. Farnesyl is necessary to attach RAS to the cell membrane. Without attachment to the cell membrane, RAS is not able to transfer signals from membrane receptors (Reuter et al., 2000).
  • Antineoplastic Agents
  • Chemical Actions and Uses
  • Heterocyclic Compounds
  • Heterocyclic Compounds, 2-Ring
  • Pharmacologic Actions
CAS number192185-72-1

Drug Targets

NameSequence SearchPharmacological ActionActions
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682