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2D Structure
Also known as: 1439901-97-9, Ono-4059 hydrochloride, Tirabrutinib hcl, Gs-4059 hydrochloride, Ono-4059(hcl salt), Ono-4059 (hydrochloride)
Molecular Formula
C25H23ClN6O3
Molecular Weight
490.9  g/mol
InChI Key
UQYDCIJFACDXSG-GMUIIQOCSA-N
FDA UNII
U374135N48

Tirabrutinib Hydrochloride is the hydrochloride salt form of tirabrutinib, an orally available formulation containing an inhibitor of Bruton agammaglobulinemia tyrosine kinase (BTK), with potential antineoplastic activity. Upon administration, tirabrutinib covalently binds to BTK within B cells, thereby preventing B cell receptor signaling and impeding B cell development. As a result, this agent may inhibit the proliferation of B cell malignancies. BTK, a cytoplasmic tyrosine kinase and member of the Tec family of kinases, plays an important role in B lymphocyte development, activation, signaling, proliferation and survival.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
6-amino-9-[(3R)-1-but-2-ynoylpyrrolidin-3-yl]-7-(4-phenoxyphenyl)purin-8-one;hydrochloride
2.1.2 InChI
InChI=1S/C25H22N6O3.ClH/c1-2-6-21(32)29-14-13-18(15-29)31-24-22(23(26)27-16-28-24)30(25(31)33)17-9-11-20(12-10-17)34-19-7-4-3-5-8-19;/h3-5,7-12,16,18H,13-15H2,1H3,(H2,26,27,28);1H/t18-;/m1./s1
2.1.3 InChI Key
UQYDCIJFACDXSG-GMUIIQOCSA-N
2.1.4 Canonical SMILES
CC#CC(=O)N1CCC(C1)N2C3=NC=NC(=C3N(C2=O)C4=CC=C(C=C4)OC5=CC=CC=C5)N.Cl
2.1.5 Isomeric SMILES
CC#CC(=O)N1CC[C@H](C1)N2C3=NC=NC(=C3N(C2=O)C4=CC=C(C=C4)OC5=CC=CC=C5)N.Cl
2.2 Other Identifiers
2.2.1 UNII
U374135N48
2.3 Synonyms
2.3.1 Depositor-Supplied Synonyms

1. 1439901-97-9

2. Ono-4059 Hydrochloride

3. Tirabrutinib Hcl

4. Gs-4059 Hydrochloride

5. Ono-4059(hcl Salt)

6. Ono-4059 (hydrochloride)

7. U374135n48

8. Tirabrutinib (hydrochloride)

9. 6-amino-9-[(3r)-1-but-2-ynoylpyrrolidin-3-yl]-7-(4-phenoxyphenyl)purin-8-one;hydrochloride

10. Tirabrutinib Hydrochloride (jan)

11. Tirabrutinib Hydrochloride [jan]

12. (r)-6-amino-9-(1-(but-2-ynoyl)pyrrolidin-3-yl)-7-(4-phenoxyphenyl)-7h-purin-8(9h)-one Hydrochloride

13. Velexbru (tn)

14. Ono-4059 (gs-4059) Hydrochloride

15. Ono4059 Hydrochloride

16. Gs-4059 (hydrochloride)

17. Ono-4059 Hcl

18. Schembl16143622

19. Unii-u374135n48

20. Ex-a1275

21. Hy-15771a

22. Mfcd30187521

23. S8166

24. Akos030526538

25. Ccg-269621

26. Cs-5637

27. Ac-35380

28. Tirabrutinib Hydrochloride [who-dd]

29. D11070

30. F10061

31. A901181

32. Q27290633

33. (r)-6-amino-9-(1-(but-2-ynoyl)pyrrolidin-3-yl)-7-(4-phenoxyphenyl)-7,9-dihydro-8h-purin-8-one Hydrochloride;ono-4059 Hydrochloride

34. (r)-6-amino-9-(1-but-2-ynoylpyrrolidin-3-yl)-7-(4-phenoxyphenyl)-7h-purin-8(9h)-one Hcl Salt

2.4 Create Date
2013-06-24
3 Chemical and Physical Properties
Molecular Weight 490.9 g/mol
Molecular Formula C25H23ClN6O3
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count6
Rotatable Bond Count4
Exact Mass g/mol
Monoisotopic Mass g/mol
Topological Polar Surface Area105
Heavy Atom Count35
Formal Charge0
Complexity825
Isotope Atom Count0
Defined Atom Stereocenter Count1
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count2