Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 872876Generated: October 29, 2026

Ammonium Chloride → N-((S)-1-(3-(4-cyano-3,5-difluorophenyl)-1H-pyrazol-1-yl)propan-2-yl)-5-(1-hydroxyethyl)-1H-pyrazole-3-carboxamide

https://huagongshe.com/reaction/872876

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantSodium borohydrideHCID 4311764—
ReactantHCID 178466830HCID 178466830—
SolventEthanolHCID 702—
ProductN-((S)-1-(3-(4-cyano-3,5-difluorophenyl)-1H-pyrazol-1-yl)propan-2-yl)-5-(1-hydroxyethyl)-1H-pyrazole-3-carboxamideHCID 706573013.3%

Reaction Steps

(S)-5-acetyl-N-(1-(3-(4-cyano-3,5-difluorophenyl)-1H-pyrazol-1-yl)propan-2-yl)-1H-pyrazole-3-carboxamide (200 mg, 0.50 mmol) was dissolved in ethanol (10 ml) and sodiumborohydride (95 mg, 2.51 mmol) was added. The reaction mixture was refluxed for 2 h, cooled and saturated ammonium chloride (20 ml) was added. The mixture was extracted three times with ethyl acetate and the combined organic fractions were washed with water, dried and evaporated. The residue was purified twice with reversed phase flash chromatography to afford (6.7 mg, 3%) of the title compound. 1H-NMR (400 MHz; d6-DMSO): δ 1.13 (d, 3H), 1.37 (d, 3H), 4.24-4.40 (m, 2H), 4.39-4.53 (m, 1H), 4.72-4.84 (m, 1H), 6.47 (s, 1H), 6.98 (m, 1H), 7.71-7.80 (m, 2H), 7.79-7.88 (d, 1H), 8.15 (d, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08975254B2
Source datasetuspto-grants-2015_03
ORD IDord-190bed323cb84b34a536632b376662ce
Source noteuspto-grants-2015_03