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2D Structure
Also known as: 1467052-75-0, Tazemetostat monohydrobromide, Epz-6438 monohydrobromide, E-7438 hydrobromide, Ez438, Tazemetostat (hydrobromide)
Molecular Formula
C34H45BrN4O4
Molecular Weight
653.6  g/mol
InChI Key
UQRICAQPWZSJNF-UHFFFAOYSA-N
FDA UNII
6P89T5M073

Tazemetostat Hydrobromide is the hydrobromide salt form of tazemetostat, an orally available, small molecule selective and S-adenosyl methionine (SAM) competitive inhibitor of histone methyl transferase EZH2, with potential antineoplastic activity. Upon oral administration, tazemetostat selectively inhibits the activity of both wild-type and mutated forms of EZH2. Inhibition of EZH2 specifically prevents the methylation of histone H3 lysine 27 (H3K27). This decrease in histone methylation alters gene expression patterns associated with cancer pathways and results in decreased tumor cell proliferation in EZH2 mutated cancer cells. EZH2, which belongs to the class of histone methyltransferases (HMTs), is overexpressed or mutated in a variety of cancer cells and plays a key role in tumor cell proliferation.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
N-[(4,6-dimethyl-2-oxo-1H-pyridin-3-yl)methyl]-3-[ethyl(oxan-4-yl)amino]-2-methyl-5-[4-(morpholin-4-ylmethyl)phenyl]benzamide;hydrobromide
2.1.2 InChI
InChI=1S/C34H44N4O4.BrH/c1-5-38(29-10-14-41-15-11-29)32-20-28(27-8-6-26(7-9-27)22-37-12-16-42-17-13-37)19-30(25(32)4)33(39)35-21-31-23(2)18-24(3)36-34(31)40;/h6-9,18-20,29H,5,10-17,21-22H2,1-4H3,(H,35,39)(H,36,40);1H
2.1.3 InChI Key
UQRICAQPWZSJNF-UHFFFAOYSA-N
2.1.4 Canonical SMILES
CCN(C1CCOCC1)C2=CC(=CC(=C2C)C(=O)NCC3=C(C=C(NC3=O)C)C)C4=CC=C(C=C4)CN5CCOCC5.Br
2.2 Other Identifiers
2.2.1 UNII
6P89T5M073
2.3 Synonyms
2.3.1 MeSH Synonyms

1. (1,1'-biphenyl)-3-carboxamide, N-((1,2-dihydro-4,6-dimethyl-2-oxo-3-pyridinyl)methyl)-5-(ethyl(tetrahydro-2h-pyran-4-yl)amino)-4-methyl-4'-(4-morpholinylmethyl)-, Hydrobromide (1:2)

2. (1,1'-biphenyl)-3-carboxamide, N-((1,2-dihydro-4,6-dimethyl-2-oxo-3-pyridinyl)methyl)-5-(ethyl(tetrahydro-2h-pyran-4-yl)amino)-4-methyl-4'-(4-morpholinylmethyl)-, Hydrochloride (1:1)

3. E 7438

4. E-7438 Hydrobromide

5. E7438

6. Epz-6438

7. Epz-6438 Dihydrobromide

8. Epz-6438 Monohydrobromide

9. Epz-6438 Monohydrochloride

10. Epz-6438 Trihydrochloride

11. Ez-438

12. Ez438

13. N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-5-(ethyl(oxan-4-yl)amino)-4-methyl-4'-((morpholin-4-yl)methyl)(1,1'-biphenyl)-3-carboxamide

14. N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-5-(ethyl(oxan-4-yl)amino)-4-methyl-4'-((morpholin-4-yl)methyl)(1,1'-biphenyl)-3-carboxamide Monohydrobromide

15. Tazemetostat

16. Tazemetostat Dihydrobromide

17. Tazemetostat Hydrochloride

18. Tazemetostat Monohydrobromide

19. Tazemetostat Monohydrochloride

20. Tazemetostat Trihydrochloride

21. Tazverik

2.3.2 Depositor-Supplied Synonyms

1. 1467052-75-0

2. Tazemetostat Monohydrobromide

3. Epz-6438 Monohydrobromide

4. E-7438 Hydrobromide

5. Ez438

6. Tazemetostat (hydrobromide)

7. Epz-6438 Hydrobromide

8. Tazemetostat Hydrobromide [usan]

9. Tazverik

10. Ez-438

11. 6p89t5m073

12. (1,1'-biphenyl)-3-carboxamide, N-((1,2-dihydro-4,6-dimethyl-2-oxo-3-pyridinyl)methyl)-5-(ethyl(tetrahydro-2h-pyran-4-yl)amino)-4-methyl-4'-(4-morpholinylmethyl)-, Hydrobromide (1:1)

13. N-[(4,6-dimethyl-2-oxo-1h-pyridin-3-yl)methyl]-3-[ethyl(oxan-4-yl)amino]-2-methyl-5-[4-(morpholin-4-ylmethyl)phenyl]benzamide;hydrobromide

14. Unii-6p89t5m073

15. Tazverik (tn)

16. 1467052-77-2

17. Chembl4594260

18. Schembl15313373

19. Dtxsid101027715

20. Hy-13803c

21. Tazemetostat Hydrobromide (jan/usan)

22. Tazemetostat Hydrobromide [jan]

23. Tazemetostat Hydrobromide [who-dd]

24. Epz-6438 Hydrobromide; Tazemetostat Hbr

25. Cs-0101826

26. D11485

27. Tazemetostat Hydrobromide [orange Book]

28. Q27265267

29. N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-5-(ethyl(oxan-4-yl)amino)-4-methyl-4'-((morpholin-4-yl)methyl)(1,1'-biphenyl)-3-carboxamide Monohydrobromide

30. N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-5-(ethyl(tetrahydro-2h-pyran-4-yl)amino)-4-methyl-4'-(morpholinomethyl)-[1,1'-biphenyl]-3-carboxamide Hydrobromide

31. N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-5-(ethyl(tetrahydro-2h-pyran-4-yl)amino)-4-methyl-4'-(morpholinomethyl)-[1,1'-biphenyl]-3-carboxamidehydrobromide

2.4 Create Date
2013-11-04
3 Chemical and Physical Properties
Molecular Weight 653.6 g/mol
Molecular Formula C34H45BrN4O4
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count6
Rotatable Bond Count9
Exact Mass652.26242 g/mol
Monoisotopic Mass652.26242 g/mol
Topological Polar Surface Area83.1 Ų
Heavy Atom Count43
Formal Charge0
Complexity992
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count2