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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 431987Generated: October 30, 2026

Imidazole → HCID 21942608, compound

https://huagongshe.com/reaction/431987

Reaction equation

Participants

RoleNameHCIDCharge
ReactantImidazoleHCID 795—
ReactantDimethylformamideHCID 6228—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 21942491HCID 21942491—
SolventChloroformHCID 6212—
ProductHCID 21942608HCID 21942608—

Reaction Steps

In a screw cap vial equipped with stir bar added 3-(3-Cyano-5-fluorophenyl)-5-(2-Pyridyl)-1,2,4-oxadiazole (20 mg, 0.08 mmol), potassium carbonate (20.8 mg, 0.15 mmol), imidazole (7.7 mg, 0.11 mmol) and dimethylformamide (1 ml). Stirred the resulting mixture at 120° C. for 2 h. The reaction mixture was diluted with chloroform (30 ml) and washed with water (30 ml). The aqueous phase was re-extracted with chloroform (30 ml) and the combined organic phase was dried (sodium sulfate), filtered and concentrated in-vacuo. The crude residue was purified on silica gel using 1% methanol in dichloromethane to isolate the free base of the desired compound as a white solid. The free base was converted to it's hydrochloride salt (11.7 mg), white solid. 1H-NMR (DMSO), δ (ppm): 9.81 (s, 1H), 8.83 (m, 4H), 8.42 (m, 2H), 8.19 (dt, 1H), 7.92 (s, 1H), 7.80 (dd, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06660753B2
Source datasetuspto-grants-2003_12
ORD IDord-9981cf7b926848ecaddfc957c322fc3b
Source noteuspto-grants-2003_12