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2D Structure
Also known as: 654671-78-0, Sitagliptin (phosphate), Mk-0431, Chembl393336, 494p4635i6, Mk0431
Molecular Formula
C16H18F6N5O5P
Molecular Weight
505.31  g/mol
InChI Key
IQFYVLUXQXSJJN-SBSPUUFOSA-N
FDA UNII
494P4635I6

A pyrazine-derived DIPEPTIDYL-PEPTIDASE IV INHIBITOR and HYPOGLYCEMIC AGENT that increases the levels of the INCRETIN hormones GLUCAGON-LIKE PEPTIDE-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP). It is used in the treatment of TYPE 2 DIABETES.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
(3R)-3-amino-1-[3-(trifluoromethyl)-6,8-dihydro-5H-[1,2,4]triazolo[4,3-a]pyrazin-7-yl]-4-(2,4,5-trifluorophenyl)butan-1-one;phosphoric acid
2.1.2 InChI
InChI=1S/C16H15F6N5O.H3O4P/c17-10-6-12(19)11(18)4-8(10)3-9(23)5-14(28)26-1-2-27-13(7-26)24-25-15(27)16(20,21)22;1-5(2,3)4/h4,6,9H,1-3,5,7,23H2;(H3,1,2,3,4)/t9-;/m1./s1
2.1.3 InChI Key
IQFYVLUXQXSJJN-SBSPUUFOSA-N
2.1.4 Canonical SMILES
C1CN2C(=NN=C2C(F)(F)F)CN1C(=O)CC(CC3=CC(=C(C=C3F)F)F)N.OP(=O)(O)O
2.1.5 Isomeric SMILES
C1CN2C(=NN=C2C(F)(F)F)CN1C(=O)C[C@@H](CC3=CC(=C(C=C3F)F)F)N.OP(=O)(O)O
2.2 Other Identifiers
2.2.1 UNII
494P4635I6
2.3 Synonyms
2.3.1 MeSH Synonyms

1. 0431, Mk

2. 4-oxo-4-(3-(trifluoromethyl)-5,6-dihydro(1,2,4)triazolo(4,3-a)pyrazin-7(8h)-yl)-1-(2,4,5-trifluorophenyl)butan-2-amine

3. Anhydrous, Sitagliptin Phosphate

4. Januvia

5. Mk 0431

6. Mk-0431

7. Mk0431

8. Monohydrate, Sitagliptin Monophosphate

9. Monohydrate, Sitagliptin Phosphate

10. Monophosphate Monohydrate, Sitagliptin

11. Phosphate Anhydrous, Sitagliptin

12. Phosphate Monohydrate, Sitagliptin

13. Phosphate, Sitagliptin

14. Sitagliptin

15. Sitagliptin Monophosphate Monohydrate

16. Sitagliptin Phosphate Anhydrous

17. Sitagliptin Phosphate Monohydrate

2.3.2 Depositor-Supplied Synonyms

1. 654671-78-0

2. Sitagliptin (phosphate)

3. Mk-0431

4. Chembl393336

5. 494p4635i6

6. Mk0431

7. (2r)-4-oxo-4-(3-(trifluoromethyl)-5,6-dihydro(1,2,4)triazolo(4,3-a)pyrazin-7(8h)-yl)-1-(2,4,5-trifluorophenyl)butan-2-amine Phosphate Salt

8. (3r)-3-amino-1-[3-(trifluoromethyl)-6,8-dihydro-5h-[1,2,4]triazolo[4,3-a]pyrazin-7-yl]-4-(2,4,5-trifluorophenyl)butan-1-one;phosphoric Acid

9. (r)-3-amino-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8h)-yl)-4-(2,4,5-trifluorophenyl)butan-1-one Phosphate

10. 1-butanone, 3-amino-1-[5,6-dihydro-3-(trifluoromethyl)-1,2,4-triazolo[4,3-a]pyrazin-7(8h)-yl]-4-(2,4,5-trifluorophenyl)-, (3r)-, Phosphate (1:1)

11. Sitagliptin Monophosphate

12. Sitagliptin Phosphate Anhydrous

13. (3r)-3-amino-1-[3-(trifluoromethyl)-6,8-dihydro-5h-[1,2,4]triazolo[4,3-a]pyrazin-7-yl]-4-(2,4,5-trifluorophenyl)-1-butanone; Phosphoric Acid

14. Mk 0431

15. Sr-05000001748

16. Unii-494p4635i6

17. (2r)-4-oxo-4-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]triazolo[4,3-a]pyrazin-7(8h)-yl]-1-(2,4,5-trifluorophenyl)butan-2-amine Phosphate Salt

18. Mk 431

19. Mk-0431 Phosphate

20. Schembl877069

21. Dtxsid10215789

22. Hy-13749a

23. Mfcd09952339

24. Akos015896098

25. Sitagliptin Phosphate [who-dd]

26. Ks-1214

27. 4-oxo-4-(3-(trifluoromethyl)-5,6-dihydro(1,2,4)triazolo(4,3-a)pyrazin-7(8h)-yl)-1-(2,4,5-trifluorophenyl)butan-2-amine Phosphate

28. Sitagliptin Monophosphate Anhydrous [mi]

29. 671s780

30. A835125

31. Sr-05000001748-2

32. Q27259224

33. Sitagliptin Phosphate Anhydrous Component Of Janumet

34. (3r)-3-amino-1-[5,6-dihydro-3-(trifluoromethyl)-1,2,4-triazolo[4,3-a]pyrazin-7(8h)-yl]-4-(2,4,5-trifluorophenyl)-1-butanone Phosphate

35. (3r)-3-azanyl-1-[3-(trifluoromethyl)-6,8-dihydro-5h-[1,2,4]triazolo[4,3-a]pyrazin-7-yl]-4-[2,4,5-tris(fluoranyl)phenyl]butan-1-one; Phosphoric Acid

36. 1,2,4-triazolo(4,3-a)pyrazine, 7-((3r)-3-amino-1-oxo-4-(2,4,5-trifluorophenyl)butyl)-5,6,7,8-tetrahydro-3-(trifluoromethyl)-, Phosphate (1:1)

37. 1269630-53-6

38. 7-((3r)-3-amino-4-(2,4,5-trifluorophenyl)butanoyl)-3-(trifluoromethyl)-5,6,7,8-tetrahydro-1,2,4-triazolo(4,3-a)pyrazinemonophosphate

39. 7-(3r)-3-amino-1-oxo-4-(2,4,5-trifluorophenyl)butyl-5,6,7,8-tetrahydro-3-(trifluoromethyl)-1,2,4-triazolo[4,3-a]pyrazine Phosphate

2.4 Create Date
2006-04-29
3 Chemical and Physical Properties
Molecular Weight 505.31 g/mol
Molecular Formula C16H18F6N5O5P
Hydrogen Bond Donor Count4
Hydrogen Bond Acceptor Count14
Rotatable Bond Count4
Exact Mass505.09497466 g/mol
Monoisotopic Mass505.09497466 g/mol
Topological Polar Surface Area155 Ų
Heavy Atom Count33
Formal Charge0
Complexity616
Isotope Atom Count0
Defined Atom Stereocenter Count1
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count2
4 Drug and Medication Information
4.1 Drug Information
1 of 4  
Drug NameJanuvia
PubMed HealthSitagliptin (By mouth)
Drug ClassesAntidiabetic
Drug LabelJANUVIA Tablets contain sitagliptin phosphate, an orally-active inhibitor of the dipeptidyl peptidase-4 (DPP-4) enzyme. Sitagliptin phosphate monohydrate is described chemically as 7-[(3R)-3-amino-1-oxo-4-(2,4,5-trifluorophenyl)butyl]-5,6,7,8-tetrahy...
Active IngredientSitagliptin phosphate
Dosage FormTablet
RouteOral
Strengtheq 100mg base; eq 50mg base; eq 25mg base
Market StatusPrescription
CompanyMerck Sharp Dohme

2 of 4  
Drug NameSitagliptin phosphate
Active IngredientSitagliptin phosphate
Dosage FormTablet
Routeoral; Oral
Strengtheq 100mg base; 25mg; eq 50mg base; 100mg; 50mg; eq 25mg base
Market StatusTentative Approval
CompanyMylan Pharms; Apotex; Sandoz; Sun Pharma Global; Watson Labs

3 of 4  
Drug NameJanuvia
PubMed HealthSitagliptin (By mouth)
Drug ClassesAntidiabetic
Drug LabelJANUVIA Tablets contain sitagliptin phosphate, an orally-active inhibitor of the dipeptidyl peptidase-4 (DPP-4) enzyme. Sitagliptin phosphate monohydrate is described chemically as 7-[(3R)-3-amino-1-oxo-4-(2,4,5-trifluorophenyl)butyl]-5,6,7,8-tetrahy...
Active IngredientSitagliptin phosphate
Dosage FormTablet
RouteOral
Strengtheq 100mg base; eq 50mg base; eq 25mg base
Market StatusPrescription
CompanyMerck Sharp Dohme

4 of 4  
Drug NameSitagliptin phosphate
Active IngredientSitagliptin phosphate
Dosage FormTablet
Routeoral; Oral
Strengtheq 100mg base; 25mg; eq 50mg base; 100mg; 50mg; eq 25mg base
Market StatusTentative Approval
CompanyMylan Pharms; Apotex; Sandoz; Sun Pharma Global; Watson Labs

5 Pharmacology and Biochemistry
5.1 MeSH Pharmacological Classification

Hypoglycemic Agents

Substances which lower blood glucose levels. (See all compounds classified as Hypoglycemic Agents.)


Incretins

Peptides which stimulate INSULIN release from the PANCREATIC BETA CELLS following oral nutrient ingestion, or postprandially. (See all compounds classified as Incretins.)


Dipeptidyl-Peptidase IV Inhibitors

Compounds that suppress the degradation of INCRETINS by blocking the action of DIPEPTIDYL-PEPTIDASE IV. This helps to correct the defective INSULIN and GLUCAGON secretion characteristic of TYPE 2 DIABETES MELLITUS by stimulating insulin secretion and suppressing glucagon release. (See all compounds classified as Dipeptidyl-Peptidase IV Inhibitors.)