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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2193875Generated: October 26, 2026

Potassium Carbonate → N-[(S)-1-(4-ethylthiazol-2-yl)-2-(4-nitrophenyl)ethyl]-2-(3-methyl-1,2,4-oxadiazol-5-yl)-3-phenylpropanamide

https://huagongshe.com/reaction/2193875

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantN-HydroxyacetamidineHCID 30926—
ReactantEthyl 2-benzyl-3-((S)-1-(4-ethylthiazol-2-yl)-2-(4-nitrophenyl)ethylamino)-3-oxopropanoateHCID 59464662—
SolventTolueneHCID 1140—
ProductN-[(S)-1-(4-ethylthiazol-2-yl)-2-(4-nitrophenyl)ethyl]-2-(3-methyl-1,2,4-oxadiazol-5-yl)-3-phenylpropanamideHCID 5946467694%

Reaction Steps

Ethyl 2-benzyl-3-((S)-1-(4-ethylthiazol-2-yl)-2-(4-nitrophenyl)ethylamino)-3-oxopropanoate is dissolved in toluene (5 mL) and heated to reflux. Potassium carbonate (80 mg) and acetamide oxime (43 mg) are added and treated with 80 mg potassium carbonate and 43 mg acetamide oxime at reflux. The reaction mixture is cooled to room temperature, filtered and concentrated. The residue is chromatographed over silica to afford 0.221 g (94%) of the desired product as a yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08329916B2
Source datasetuspto-grants-2012_12
ORD IDord-80ca179e54d24fd0acf4c5fc2fc2a55e
Source noteuspto-grants-2012_12