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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1989943Generated: November 1, 2026

Ethyl Acetate → 3-{[6-(azetidin-1-ylcarbonyl)pyridin-3-yl]oxy}-5-({(1S)-2-[(difluoromethyl)oxy]-1-methylethyl}oxy)-N-(1-methyl-1H-pyrazol-3-yl)benzamide

https://huagongshe.com/reaction/1989943

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantCesium carbonateHCID 10796—
Reactant2-(Azetidin-1-ylcarbonyl)-5-bromopyridineHCID 53629617—
Reactant3-[(2S)-1-(difluoromethoxy)propan-2-yl]oxy-5-hydroxy-N-(1-methylpyrazol-3-yl)benzamideHCID 59127122—
CatalystBromotris(triphenylphosphine)copper(I)HCID 11251615—
SolventWaterHCID 962—
SolventDimethylacetamideHCID 31374—
Product3-{[6-(azetidin-1-ylcarbonyl)pyridin-3-yl]oxy}-5-({(1S)-2-[(difluoromethyl)oxy]-1-methylethyl}oxy)-N-(1-methyl-1H-pyrazol-3-yl)benzamideHCID 1603964831.8%

Reaction Conditions

Temperature160 °C

Reaction Steps

A mixture of 3-({(1S)-2-[(difluoromethyl)oxy]-1-methylethyl}oxy)-5-hydroxy-N-(1-methyl-1H-pyrazol-3-yl)benzamide (220 mg, 0.64 mmol), 2-(azetidin-1-ylcarbonyl)-5-bromopyridine (171 mg, 0.71 mmol), cesium carbonate (419 mg, 1.29 mmol) and bromotris(triphenylphosphine)copper(I) (300 mg, 0.32 mmol) in DMA (5 mL) was stirred in a ‘Biotage initiator Microwave’ at 160° C. for 4 hours. The reaction mixture was added to ethyl acetate (50 mL) and water (50 mL), the organic layer washed with brine (50 mL), dried (MgSO4), filtered and the solvent removed in vacuo to give a brown oil. The residue was chromatographed on silica, eluting with 0-100% ethyl acetate in isohexane, to give the desired compound (102 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07642263B2
Source datasetuspto-grants-2010_01
ORD IDord-a86e8a3cdde640ef8c0055b39de5718d
Source noteuspto-grants-2010_01