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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1177949Generated: October 29, 2026

3-Phenoxybenzoic acid → HCID 25164319, compound

https://huagongshe.com/reaction/1177949

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Phenoxybenzoic acidHCID 19539—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant2-amino-1-[4-(2-trifluoromethyl-benzoyl)-piperazin-1-yl]-ethanone TFA saltHCID 86634088—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 25164319HCID 2516431972.5%

Reaction Steps

DIPEA (73 mg, 0.097 mL, 0.56 mmol) was added to a stirred solution of 2-amino-1-[4-(2-trifluoromethyl-benzoyl)-piperazin-1-yl]-ethanone TFA salt (96 mg, 0.22 mmol) in DMF (1 mL). HOBT (30 mg, 0.22 mmol) and EDCI.HCl (43 mg, 0.22 mmol) were then added at room temperature. After 2 minutes, 3-phenoxybenzoic acid (40 mg, 0.19 mmol) was added and the resulting mixture was stirred at room temperature for 4 hrs. Cold water was then added and the product was extracted with EtOAc and the organic layer was washed with brine. The organic phase was dried over Na2SO4 and concentrated under reduced pressure to afford 70 mg (72.5% yield) of N-{2-Oxo-2-[4-(2-trifluoromethyl-benzoyl)-piperazin-1-yl]-ethyl}-3-phenoxy-benzamide. LCMS Purity: 89.64%. 1H NMR (DMSO-d6): δ 8.7-8.6 (t, 1H), 7.9-7.4 (m, 8H), 7.2 (m, 1H), 7.1-7.0 (d, 1H), 4.2-4.0 (m, 2H), 3.8-3.4 (m, 6H), 3.3-3.2 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07842696B2
Source datasetuspto-grants-2010_11
ORD IDord-617525bebfa54bd28916a2e3dde15ea1
Source noteuspto-grants-2010_11