(2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-one

Product Name: (2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-one
CAS No.: 764667-65-4
Chemical Name: (2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-one
Synonyms: 1-(3-(TrifluoroMethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butane-1,3-dione;1-[5,6-Dihydro-3-(trifluoromethyl)-1,2,4-triazolo[4,3-a]pyrazin-7(8H)-yl] -4-(2,4,5-trifluorophenyl)-1,3-butanedione;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-one;Sitagliptin-11;Sitagliptin Ketone;Sitagliptin Impurity 4;Sitagliptin keto amide;Sitagliptin Impurity 53;rac-Sitagliptin 3-Ketone;-4-(2,4,5-trifluorophenyl)
CBNumber: CB31518646
Molecular Formula: C16H12F6N4O2
Formula Weight: 406.28
MOL File: 764667-65-4.mol

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(2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-one Property

Melting point:: 82-84°C
Boiling point:: 513.9±60.0 °C(Predicted)
Density: 1.60±0.1 g/cm3(Predicted)
storage temp.: Sealed in dry,2-8°C
solubility: Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly)
form: Solid
pka: 11.44±0.20(Predicted)
color: Off-White to Pale Beige
LogP: 2.424
CAS DataBase Reference: 764667-65-4(CAS DataBase Reference)

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

TRC

Product number: O864950
Product name: 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-one
Packaging: 1g
Price: $305
Updated: 2021/12/16

Matrix Scientific

Product number: 091126
Product name: 1-(3-(Trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butane-1,3-dione
Purity: 95+%
Packaging: 250mg
Price: $511
Updated: 2021/12/16

Matrix Scientific

Product number: 091126
Product name: 1-(3-(Trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butane-1,3-dione
Purity: 95+%
Packaging: 1g
Price: $1143
Updated: 2021/12/16

Medical Isotopes, Inc.

Product number: 12842
Product name: 4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-α]pyrazin-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-one
Packaging: 50mg
Price: $2000
Updated: 2021/12/16

AK Scientific

Product number: X4794
Product name: (2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-one
Packaging: 5g
Price: $89
Updated: 2021/12/16

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(2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-one Chemical Properties,Usage,Production

Chemical Properties

Brown Oil

Uses

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-one is a Sitagliptin intermediate.

Synthesis

1151240-88-8

486460-21-3

764667-65-4

Potassium tert-butoxide (2.24 g, 20 mmol) was dissolved in 40 mL of tetrahydrofuran in a 100 mL single-necked flask and stirred for 1 min at room temperature. Subsequently, ethyl 3-oxo-4-(2,4,5-trifluorophenyl)butanoate (1.91 g, 10 mmol) and 3-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine (2.60 g, 10 mmol) were added sequentially and stirring was continued for 60 min at room temperature. After completion of the reaction, the tetrahydrofuran was removed by distillation under reduced pressure. The residue was extracted by adding 50 mL of water and 50 mL of dichloromethane to the residue. The organic phase was separated and dried over anhydrous sodium sulfate, followed by evaporation of the solvent. The crude product was recrystallized by dichloromethane and cyclohexane to give 3.33 g of 1-(3-trifluoromethyl-5,6-dihydro-8H-[1,2,4]triazol-[4,3-A]pyrazine-7(8H)-yl)-4-(2,4,5-trifluorophenyl)-1,3-butanedione in 82% yield and 99% purity.

References

[1] Patent: CN108178761, 2018, A. Location in patent: Paragraph 0032; 0038; 0039; 0061-0066

(2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-one Preparation Products And Raw materials

Raw materials

Preparation Products

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(2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-one Suppliers

Canada 1 China 206 India 29 United States 14 Global 250

Henan SIWEIYIN Medicines Co., Ltd.

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J & K SCIENTIFIC LTD.

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Chembest Research Laboratories Limited

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Energy Chemical

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Adamas Reagent, Ltd.

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Chemsky（shanghai）International Co.,Ltd.

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View Lastest Price from (2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-one manufacturers

Guangzhou Tosun Pharmaceutical Ltd

Product: Sitagliptin Impurity 13 764667-65-4
Price: US $0.00-0.00/mg
Min. Order: 5mg
Purity: 95%+
Supply Ability: 1000mg
Release date: 2025-02-17

Zhuozhou Wenxi import and Export Co., Ltd

Product: intermediate of Sitagliptin/Sitagliptin phosphate/Sitagliptin phosphate monohydrate 764667-65-4
Price: US $15.00-10.00/KG
Min. Order: 1KG
Purity: 99%+ HPLC
Supply Ability: Monthly supply of 1 ton
Release date: 2021-06-26

Career Henan Chemical Co

Product: (2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-one 764667-65-4
Price: US $1.00/KG
Min. Order: 1KG
Purity: 98%
Supply Ability: 100KG
Release date: 2018-07-28

764667-65-4, (2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-oneRelated Search:

Doxazosin Doxazosin mesylate Alfuzosin Prazosin Terazosin Dihydromyrcenol Alfuzosin hydrochloride Terazosin hydrochloride Pyrazine Sitagliptin Methyl 3-Oxo-4-(2,4,5-trifluorophenyl)butanoate Benzenebutanoicacid,b-aMino-2,4,5-trifluoro-,Methylester,(bR)- Sitagliptin DeaMino IMpurity 1 Sitagliptin Sitagliptin N-Sulfate Benzenebutanoicacid,b-[[(1,1-diMethylethoxy)carbonyl]aMino]-2,4,5-trifluoro-,Methylester,(bR)- (R)-methyl 3-acetamido-4-(2,4,5-trifluorophenyl)butanoate 2,4,5-TRIFLUOROBENZYL CHLORIDE

1-(3-(TrifluoroMethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butane-1,3-dione

1-(3-(Trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophen

rac-Sitagliptin 3-Ketone

1,3-Butanedione,1-[5,6-dihydro-3-(trifluoromethyl)-1,2,4-triazolo[4,3-a]pyrazin-7(8H)-yl]-4-(2,4,5-trifluorophenyl)-

-4-(2,4,5-trifluorophenyl)

-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)

1-(3-(Trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorop

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-one

1-[5,6-Dihydro-3-(trifluoromethyl)-1,2,4-triazolo[4,3-a]pyrazin-7(8H)-yl] -4-(2,4,5-trifluorophenyl)-1,3-butanedione

1-[5,6-Dihydro-3-(trifluoromethyl)-1,2,4-triazolo[4,3-α]pyrazin-7(8H)-yl] -4-(2,4,5-trifluorophenyl)-1,3-butanedione

4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-α]pyrazin-7(8H)-yl] -1-(2,4,5-trifluorophenyl)butan-2-one

(2Z)-1-[3-(Trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-yl]-4-(2,4,5-trifluorophenyl)butane-1,3-dione

(2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-one

Sitagliptin Impurity 4

Sitagliptin Impurity 53

(2Z)-4-Oxo-4-[3-(trifluoroMethyl) -5,6-dihydro-[1,2,4]triazolo[4,3-a] pyrazine-7(8H)-yl]-1-(2,4,5-tr

1-(3-(Triflroromethyl)5,6-Dihydro-[1,2,4]Triazolo[4,3-A]Pyrazine-7(8H)-Yl)-4-(2,4,5-Trifluorophenyl)Butane-1,3-Dione

Sitagliptin-11

Sitagliptin impurity 11/Sitagliptin Ketoamide Impurity/Sitagliptin dioxo impurity/(2Z)-4-Oxo-4-[3-(trifluoroMethyl)-5,6-dihydro-[1,2,4] triazolo[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-one

Sitagliptin keto amide

3-a]pyrazin-7(8H)-yl]-1-(2

4-oxo-4-[3-(trifluoromethyl)-5

5-trifluorophenyl)butan-2-one

1-[3-(trifluoromethyl)-6,8-dihydro-5H-[1,2,4]triazolo[4,3-a]pyrazin-7-yl]-4-(2,4,5-trifluorophenyl)butane-1,3-dione

intermediate of Sitagliptin\/Sitagliptin phosphate\/Sitagliptin phosphate monohydrate

Sitagliptin dioxygen impurity

Sitagliptin Ketoamide Impurity(SIT-3)

Sitagliptin Ketoamide Impurity (Sitagliptin dioxo impurity)

(2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazol...

(2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-on

1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butane-1,3-dione? (Sitagliptin Impurity）

1-(3-Trifluoromethyl-5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazin-7-yl)-4-(2,4,5-trifluoro-phenyl)-butane-1,3-dione

[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-one

(2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro- [1,2,4]triazolo[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5- trifluorophenyl)butan-2-one (Sitagliptin Ketoamide)

(2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5-

1-(3-(Tri?uoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a] pyrazin-7(8H)-yl)-4-(2,4,5-tri?uorophenyl)butane-1,3-dione

1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine -7(8H)-yl)-4-(2,4,5-trifluorophenyl)butane-1,3-dione

(R)-TERT-BUTYL 4-OXO-4-(3-TRIFLUOROMETHYL)-5,6-DIHYDRO-[1,2,4]TRIAZOLO[4,3-A]PYRAZIN-7(8H)-YL)-1-(2,4,5-TRIFLUOROPHENYL)

4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-one

(2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,

(2Z)4-0xo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-one

Sitagliptin Ketone

1-(3-(Trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butane-1,3-dione (Intermediate of Sitagliptin phosphate)

764667-65-4

64667-65-4

C16H12F6N4O2

Pyrazine

Aromatics Compounds

Aromatics

Heterocycles

Intermediates & Fine Chemicals

Pharmaceuticals