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
Participants
| Role | Name | HCID | Charge |
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| Reactant | Ammonium Chloride | HCID 25517 | — |
| Reactant | Sodium borohydride | HCID 4311764 | — |
| Reactant | HCID 178466830 | HCID 178466830 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | N-((S)-1-(3-(4-cyano-3,5-difluorophenyl)-1H-pyrazol-1-yl)propan-2-yl)-5-(1-hydroxyethyl)-1H-pyrazole-3-carboxamide | HCID 70657301 | 3.3% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08975254B2 |
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| Source dataset | uspto-grants-2015_03 |
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| ORD ID | ord-190bed323cb84b34a536632b376662ce |
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| Source note | uspto-grants-2015_03 |
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