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2D Structure
Also known as: Kpt-9274, 1643913-93-2, Padnarsertib, Kpt9274, Kpt 9274, (e)-3-(6-aminopyridin-3-yl)-n-((5-(4-(4,4-difluoropiperidine-1-carbonyl)phenyl)-7-(4-fluorophenyl)benzofuran-2-yl)methyl)acrylamide
Molecular Formula
C35H29F3N4O3
Molecular Weight
610.6  g/mol
InChI Key
MRFOPLWJZULAQD-SWGQDTFXSA-N
FDA UNII
9T56TV18X7

Padnarsertib is an orally bioavailable inhibitor of both the serine/threonine kinase P21-activated kinase 4 (PAK4) and the nicotinamide adenine dinucleotide (NAD)-synthesizing enzyme nicotinamide phosphoribosyltransferase (NAMPT; NAMPRTase), with potential antineoplastic activity. Upon administration, padnarsertib allosterically binds to, destabilizes and causes degradation of PAK4. This inhibits PAK4-mediated signaling, induces cell death in, and inhibits the proliferation of PAK4-overexpressing tumor cells. In addition, padnarsertib binds to and inhibits the activity of NAMPT. This depletes cellular NAD and inhibits NAD-dependent enzymes, both of which are needed for rapid cell proliferation; this results in tumor cell death in NAMPT-overexpressing cancer cells. PAK4, a serine/threonine kinase and member of the PAK family of proteins upregulated in various cancer cell types, regulates cell motility, proliferation and survival. NAMPT, an enzyme that is responsible for maintaining the intracellular NAD pool, plays a key role in the regulation of cellular metabolism and has cytokine-like activities. NAMPT is often overexpressed in a variety of cancers and metabolic disorders and tumor cells rely on NAMPT activity for their NAD supply.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
(E)-3-(6-aminopyridin-3-yl)-N-[[5-[4-(4,4-difluoropiperidine-1-carbonyl)phenyl]-7-(4-fluorophenyl)-1-benzofuran-2-yl]methyl]prop-2-enamide
2.1.2 InChI
InChI=1S/C35H29F3N4O3/c36-28-9-7-24(8-10-28)30-19-26(23-3-5-25(6-4-23)34(44)42-15-13-35(37,38)14-16-42)17-27-18-29(45-33(27)30)21-41-32(43)12-2-22-1-11-31(39)40-20-22/h1-12,17-20H,13-16,21H2,(H2,39,40)(H,41,43)/b12-2+
2.1.3 InChI Key
MRFOPLWJZULAQD-SWGQDTFXSA-N
2.1.4 Canonical SMILES
C1CN(CCC1(F)F)C(=O)C2=CC=C(C=C2)C3=CC(=C4C(=C3)C=C(O4)CNC(=O)C=CC5=CN=C(C=C5)N)C6=CC=C(C=C6)F
2.1.5 Isomeric SMILES
C1CN(CCC1(F)F)C(=O)C2=CC=C(C=C2)C3=CC(=C4C(=C3)C=C(O4)CNC(=O)/C=C/C5=CN=C(C=C5)N)C6=CC=C(C=C6)F
2.2 Other Identifiers
2.2.1 UNII
9T56TV18X7
2.3 Synonyms
2.3.1 MeSH Synonyms

1. Kpt-9274

2.3.2 Depositor-Supplied Synonyms

1. Kpt-9274

2. 1643913-93-2

3. Padnarsertib

4. Kpt9274

5. Kpt 9274

6. (e)-3-(6-aminopyridin-3-yl)-n-((5-(4-(4,4-difluoropiperidine-1-carbonyl)phenyl)-7-(4-fluorophenyl)benzofuran-2-yl)methyl)acrylamide

7. 9t56tv18x7

8. (e)-3-(6-aminopyridin-3-yl)-n-[[5-[4-(4,4-difluoropiperidine-1-carbonyl)phenyl]-7-(4-fluorophenyl)-1-benzofuran-2-yl]methyl]prop-2-enamide

9. 2-propenamide, 3-(6-amino-3-pyridinyl)-n-((5-(4-((4,4-difluoro-1-piperidinyl)carbonyl)phenyl)-7-(4-fluorophenyl)-2-benzofuranyl)methyl)-, (2e)-

10. 2-propenamide, 3-(6-amino-3-pyridinyl)-n-[[5-[4-[(4,4-difluoro-1-piperidinyl)carbonyl]phenyl]-7-(4-fluorophenyl)-2-benzofuranyl]methyl]-, (2e)-

11. 2226508-53-6

12. 3-(6-aminopyridin-3-yl)-n-((5-(4-(4,4-difluoropiperidine-1-carbonyl)phenyl)-7-(4-fluorophenyl)benzofuran-2-yl)methyl)acrylamide

13. (~{e})-3-(6-azanylpyridin-3-yl)-~{n}-[[5-[4-[4,4-bis(fluoranyl)piperidin-1-yl]carbonylphenyl]-7-(4-fluorophenyl)-1-benzofuran-2-yl]methyl]prop-2-enamide

14. Padnarsertib [inn]

15. Unii-9t56tv18x7

16. Chembl4297467

17. Pak4-in-1kpt9274

18. Schembl16345416

19. Schembl16348032

20. Gtpl10593

21. Ex-a563

22. Kpt 9274 [who-dd]

23. Bcp10637

24. Kpt 9274;kpt9274

25. Mfcd30207881

26. Nsc792970

27. S8444

28. Zinc253387914

29. Ccg-270228

30. Cs-5146

31. Nsc-792970

32. Ncgc00484085-01

33. Ncgc00484085-02

34. Ac-35883

35. As-79230

36. Hy-12793

37. A857869

38. J-690230

39. (2e)-3-(6-amino-3-pyridinyl)-n-((5-(4-((4,4-difluoro-1-piperidinyl)carbonyl)phenyl)-7-(4-fluorophenyl)-2-benzofuranyl)methyl)-2-propenamide

40. 3-(6-amino-3-pyridinyl)-n-[[5-[4-[(4,4-difluoro-1-piperidinyl)carbonyl]phenyl]-7-(4-fluorophenyl)-2-benzofuranyl]methyl]-, (2e)-2-propenamide​

41. 4-(4-chlorophenyl)-2,3,9-trimethyl-6h-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine-6-acetamide

2.4 Create Date
2016-02-23
3 Chemical and Physical Properties
Molecular Weight 610.6 g/mol
Molecular Formula C35H29F3N4O3
XLogP36.1
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count8
Rotatable Bond Count7
Exact Mass610.21917529 g/mol
Monoisotopic Mass610.21917529 g/mol
Topological Polar Surface Area102 Ų
Heavy Atom Count45
Formal Charge0
Complexity1040
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count1
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1