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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2092061Generated: November 2, 2026

Potassium Carbonate → HCID 68432192, compound

https://huagongshe.com/reaction/2092061

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantAmmonium ChlorideHCID 25517—
ReactantEthyl 4-bromobutyrateHCID 76300—
ReactantHCID 68429305HCID 68429305—
SolventDimethylformamideHCID 6228—
ProductHCID 68432192HCID 68432192149.8%

Reaction Conditions

Temperature80 °C

Reaction Steps

4-Bromo-5-[(1R,2R,3R,5S)-2,6,6-trimethylbicyclo[3.1.1]hept-3-ylamino]pyridazin-3(2H)-one (224 mg, 0.688 mmol) in N,N-dimethylformamide (2.2 mL) was mixed with ethyl 4-bromobutyrate (0.148 mL, 1.03 mmol) and potassium carbonate (142 mg, 1.03 mmol) at room temperature and stirred at 80° C. for 2 hours. After cooling, the reaction solution was mixed with saturated aqueous ammonium chloride and extracted with ethyl acetate. The resulting organic layer was washed with saturated aqueous ammonium chloride and saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate and evaporated under reduced pressure to give the desired product (454 mg, quant.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08440666B2
Source datasetuspto-grants-2013_05
ORD IDord-c3c89577a2354282aabbe01353806130
Source noteuspto-grants-2013_05