Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2092084Generated: November 1, 2026

Ethyl Acetate → HCID 68432148, compound

https://huagongshe.com/reaction/2092084

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantPotassium CarbonateHCID 11430—
Reactant4-(4-Chlorobutyl)pyridine--hydrogen chloride (1/1)HCID 19766757—
ReactantHCID 68429305HCID 68429305—
SolventDimethylformamideHCID 6228—
ProductHCID 68432148HCID 6843214812.2%

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 (221 mg, 0.677 mmol) in N,N-dimethylformamide (4 mL) was mixed with 4-(4-chlorobutyl)pyridine hydrochloride (278 mg, 1.35 mmol) and potassium carbonate (375 mg, 2.71 mmol) at room temperature and stirred at 80° C. for 6.5 hours. After cooling, ethyl acetate was added, and the organic layer was washed with saturated aqueous ammonium chloride, dried over anhydrous magnesium sulfate and evaporated under reduced pressure. The resulting residue was purified by silica gel chromatography (chloroform/methanol=50/1) to give the desired product (38 mg, 12% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08440666B2
Source datasetuspto-grants-2013_05
ORD IDord-2418d7a6214f4244a4e3953fb7f1ee0b
Source noteuspto-grants-2013_05