(S)-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-yl p-toluenesulfonate

Base Information

• Chemical Name: (S)-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-yl p-toluenesulfonate
• CAS No.: 1433545-80-2
• Molecular Formula: C₂₃H₂₀F₆N₄O₄S
• Molecular Weight: 562.493
• Mol file: 1433545-80-2.mol

Synonyms:(S)-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-yl p-toluenesulfonate

Chemical Property of (S)-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-yl p-toluenesulfonate

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (S)-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-yl p-toluenesulfonate

There total 2 articles about (S)-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-yl p-toluenesulfonate which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 92.1%

(S)-3-hydroxy-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 (1352613-30-9) + p-toluenesulfonyl chloride (98-59-9) → (S)-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-yl p-toluenesulfonate (1433545-80-2)

Guidance literature:

With pyridine; at 0 - 5 ℃; for 7h; Reagent/catalyst; Time; Solvent;

Reference yield:

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 sodium salt → (S)-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-yl p-toluenesulfonate (1433545-80-2)

Guidance literature:

Multi-step reaction with 2 steps

1: D-glucose; β-nicotinamide adenine dinucleotide phosphate disodium salt / water; toluene / 30 h / 25 - 30 °C / pH 7 - 8 / Enzymatic reaction

2: pyridine / 7 h / 0 - 5 °C

With pyridine; β-nicotinamide adenine dinucleotide phosphate disodium salt; D-glucose; In water; toluene;

Reference yield:

(S)-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-yl p-toluenesulfonate (1433545-80-2) → sitagliptin (486460-32-6,823817-55-6)

Guidance literature:

Multi-step reaction with 2 steps

1: sodium azide / dimethyl sulfoxide / 22 h / 20 - 30 °C

2: hydrogen; 5%-palladium/activated carbon; sodium tetrahydroborate; methanol / 42 h / 0 - 30 °C

With methanol; sodium tetrahydroborate; sodium azide; 5%-palladium/activated carbon; hydrogen; In dimethyl sulfoxide;

upstream raw materials:

(S)-3-hydroxy-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

p-toluenesulfonyl chloride

Downstream raw materials:

(R)-3-azido-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

sitagliptin

(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