Reaktion #158840

ord-37dbbb980e384507b150930d32e3f1f8

Reaktionsbedingungen

Temperatur
45°CELSIUS
Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    EinengenThe mixture was concentrated
  2. 2
    workup.DISSOLUTIONre-dissolved in water/MeCN/TFA
  3. 3
    Sonstigepurified

Vorschrift

A solution of 1-(2′-acetylsulfamoylbiphenyl-4-ylmethyl)-5-propyl-1H-pyrazole-3-carboxylic acid (250 mg, 570 μmol), HATU (215 mg, 566 μmol) and DIPEA (592 μL, 3.4 mmol) in DMF (18 mL, 230 mmol) was stirred to pre-activate the acid. After 15 minutes, (2R,3R)-3-amino-2-hydroxy-4-phenylbutyric acid (110 mg, 566 μmol) was added. The resulting solution was stirred at 45° C. overnight. The mixture was concentrated, re-dissolved in water/MeCN/TFA and purified using reverse phase liquid chromatography to yield the title compound (197 mg, 97% purity). MS m/z: [M+H]+ calcd for C32H34N4O7S, 619.22. found 619.6.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US08822522B2uspto-grants-2014_09