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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2236318Generated: November 2, 2026

Triethylamine → 2-Phenyl-5-trifluoromethyloxazole-4-carboxylic Acid[6-(3-Ethoxyazetidin-1-yl)pyridin-3-yl]amide

https://huagongshe.com/reaction/2236318

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantBenzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 151348—
Reactant2-Phenyl-5-(trifluoromethyl)-oxazole-4-carboxylic acidHCID 2776438—
Reactant2-(3-Ethoxy-azetidin-1-yl)-5-nitro-pyridineHCID 59301281—
Product2-Phenyl-5-trifluoromethyloxazole-4-carboxylic Acid[6-(3-Ethoxyazetidin-1-yl)pyridin-3-yl]amideHCID 5293672769.2%

Reaction Steps

2-(3-Ethoxy-azetidin-1-yl)-5-nitro-pyridine (59 mg, 0.264 mmol) was hydrogenated as above and reacted with 2-phenyl-5-trifluoromethyl-oxazole-4-carboxylic acid (74 mg, 0.29 mmol), Et3N (186 uL, 1.32 mmol) and BOP (122 mg. 0.277 mmol). Following work-up as above, the crude material was purified by flash chromatography to yield 2-phenyl-5-trifluoromethyl-oxazole-4-carboxylic acid [6-(3-ethoxy-azetidin-1-yl)-pyridin-3-yl]-amide as a solid (79 mg). ES-MS calcd for C21H19F3N4O3 (m/e) 432.41, obsd 433.1 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07714126B2
Source datasetuspto-grants-2010_05
ORD IDord-24a3125592b14b96a7cfcd0ae5eb8b9b
Source noteuspto-grants-2010_05