Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1972005Generated: October 29, 2026

Hydrochloric Acid → HCID 67373292, compound

https://huagongshe.com/reaction/1972005

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1-Bromo-2-methylpropaneHCID 6555—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 67374404HCID 67374404—
SolventDiethyl EtherHCID 3283—
SolventDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
SolventWater ethylacetateHCID 22728543—
ProductHCID 67373292HCID 67373292117.7%

Reaction Conditions

Temperature90 °C

Reaction Steps

To a solution of N-{5-[3-butyl-6-(1-methyl-piperidin-4-yloxy)-pyridazin-4-yl]-2-cyclohexyloxy-phenyl}-methanesulfonamide dihydrochloride (0.1 mmol, 59 mg) in DMF (1.0 mL) was added isobutyl bromide (0.2 mmol, 22 μL), and potassium carbonate (0.4 mmol, 56 mg). And the mixture was stirred at 90° C. for 2 hours. It was then diluted with water/EtOAc. The solvent was removed in vacuo and the residue was purified by silica gel chromatography (DCM to DCM+10% 2N NH3 in MeOH) to give a colorless sticky solid, which was dissolved in DCM (1.0 mL), 2N HCl in ether (1.0 mL) was added, condensed, triturated with hexanes to provide the title compound (38 mg). LCMS: m/z 574 [M+1]. 1H NMR (400 MHz, CD3OD): δ 7.39 (1H, d), 7.31 (1H, s), 7.25 (1H, d), 7.04 (1H, s), 5.42 (1H, bs), 4.46-4.53 (1H, m), 3.42-3.48 (1H, m), 2.98-3.30 (5H, m), 2.95 (3H, s), 2.90-2.94 (2H, m), 2.69 (3H, s), 2.09-2.30 (6H, m), 1.82-1.88 (2H, m), 1.20-1.69 (11H, m), 0.89-0.93 (6H, m), 0.79 (3H, t).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08431575B2
Source datasetuspto-grants-2013_04
ORD IDord-5b5c62c3ba33418198ef59e6c07a8b36
Source noteuspto-grants-2013_04