| Identification | More | [Name]
3-(Trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine hydrochloride | [CAS]
762240-92-6 | [Synonyms]
3-(TRIFLUOROMETHYL)-5,6,7,8-TETRAHYDRO[1,2,4]TRIAZOLO[4,3-
3-(Trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-α]pyrazine Hydrochloride
5,6,7,8-Tetrahydro-3-(trifluoromethyl)-1,2,4-triazolo[4,3-α]pyrazine Monohydrochloride
5,6,7,8-Tetrahydro-3-(trifluoromethyl)-1,2,4-triazolo[4,3-a]pyrazine Monohydrochloride
3-(Trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine hydrochlorid | [EINECS(EC#)]
616-309-4 | [Molecular Formula]
C6H8ClF3N4 | [MDL Number]
MFCD09817638 | [Molecular Weight]
228.6 | [MOL File]
762240-92-6.mol |
| Chemical Properties | Back Directory | [Appearance]
White Solid | [Melting point ]
236-246°C | [storage temp. ]
Keep in dark place,Sealed in dry,Room Temperature | [solubility ]
DMSO (Slightly), Methanol (Slightly) | [form ]
Solid | [color ]
White to Off-White | [Usage]
Sitagliptin intermediate | [InChI]
InChI=1S/C6H7F3N4.ClH/c7-6(8,9)5-12-11-4-3-10-1-2-13(4)5;/h10H,1-3H2;1H | [InChIKey]
AQCSCRYRCRORET-UHFFFAOYSA-N | [SMILES]
C12=NN=C(C(F)(F)F)N1CCNC2.[H]Cl | [CAS DataBase Reference]
762240-92-6(CAS DataBase Reference) |
| Hazard Information | Back Directory | [Description]
3-(Trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine hydrochloride is a pharmaceutical intermediate compound used in the preparation of Sitagliptin phosphate. Sitagliptin is an oral hypoglycaemic agent, a dipeptidyl peptidase-4 inhibitor, which is used in the treatment of type 2 diabetes. | [Chemical Properties]
White Solid | [Uses]
Sitagliptin intermediate | [Synthesis]
A suspension of N'-[(2Z)-Piperazin-2-ylidene]trifluoroacetohydrazide (27.3 g, 0.13 mol) in 110 mL of methanol was WARMED TO 55 ℃. 37% Hydrochloric acid (11.2 mL, 0.14 mol) was added over 15 min at this temperature. During the addition, all solids dissolved, resulting in a clear solution. The reaction was aged for 30 min. The solution was cooled to 20 ℃ and aged at this temperature until a seed bed formed (10 min to 1 h). 300 ML of MTBE was charged at 20 ℃ over 1 h. The resulting slurry was cooled to 2 ℃, aged for 30 min and filtered. Solids were washed with 50 mL of ethanol: MTBE (1: 3) and dried under vacuum at 45 ℃. Yield of 3-(Trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine hydrochloride was 26.7 g (99.5 area wt% pure by HPLC).
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J & K SCIENTIFIC LTD.
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https://www.jkchemical.com |
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Jia Xing Isenchem Co.,Ltd
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0573-85285100 18627885956 |
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https://www.chemicalbook.com/ShowSupplierProductsList14265/0_EN.htm |
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Felongchem Co., Ltd.
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021-68735616 |
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