HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2425494Generated: October 28, 2026
Ethyl Acetate → 5-[3-[(2S)-1-(difluoromethoxy)propan-2-yl]oxy-5-[(1-methylpyrazol-3-yl) carbamoyl]phenoxy]-N,N-dimethyl-pyrazine-2-carboxamide
https://huagongshe.com/reaction/2425494
Participants
| Role | Name | HCID | Charge |
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| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 5-chloro-N,N-dimethylpyrazine-2-carboxamide | HCID 59000470 | — |
| Reactant | 3-[(2S)-1-(difluoromethoxy)propan-2-yl]oxy-5-hydroxy-N-(1-methylpyrazol-3-yl)benzamide | HCID 59127122 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | 5-[3-[(2S)-1-(difluoromethoxy)propan-2-yl]oxy-5-[(1-methylpyrazol-3-yl) carbamoyl]phenoxy]-N,N-dimethyl-pyrazine-2-carboxamide | HCID 25096502 | 36.6% |
Reaction Steps
A mixture of 3-[(2S)-1-(difluoromethoxy)propan-2-yl]oxy-5-hydroxy-N-(1-methylpyrazol-3-yl)benzamide (0.1 g, 0.29 mmol), 5-chloro-N,N-dimethyl-pyrazine-2-carboxamide (66 mg, 0.35 mmol) and potassium carbonate (81 mg, 0.59 mmol) in acetonitrile (5 mL) was stirred in a microwave reactor at 160° C. for 6 hours. The resulting mixture was reduced in vacuo and ethyl acetate (50 mL) added. The organics were washed with water (50 mL), brine (50 mL), dried (MgSO4), filtered and reduced in vacuo. The residue was chromatographed on silica, eluting with 10-100% ethyl acetate in isohexane to give the desired compound (52 mg).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07964725B2 |
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| Source dataset | uspto-grants-2011_06 |
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| ORD ID | ord-3a0234fb520e4e96a5884fa972bf0e15 |
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| Source note | uspto-grants-2011_06 |
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