Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2206000Generated: October 30, 2026

Water → 4-(4-oxo-1-(tetrahydro-2H-pyran-4-yl)-4,5-dihydro-1H-pyrazolo[4,3-c]pyridin-3-yl)benzenesulfonamide

https://huagongshe.com/reaction/2206000

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium IodideHCID 5238—
ReactantChlorotrimethylsilaneHCID 6397—
Reactant4-(4-methoxy-1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazolo[4,3-c]pyridin-3-yl)benzenesulfonamideHCID 117988053—
SolventAcetonitrileHCID 6342—
Product4-(4-oxo-1-(tetrahydro-2H-pyran-4-yl)-4,5-dihydro-1H-pyrazolo[4,3-c]pyridin-3-yl)benzenesulfonamideHCID 13701066096.9%

Reaction Conditions

Temperature60 °C

Reaction Steps

To a solution of 4-(4-methoxy-1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazolo[4,3-c]pyridin-3-yl)benzenesulfonamide (106 mg) in acetonitrile (10 mL) were added sodium iodide (82.0 mg) and chloro(trimethyl)silane (0.276 mL), and the mixture was stirred at 60° C. for 30 min. To the reaction mixture was added water, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane), and the obtained solid was washed with ethyl acetate/diisopropyl ether to give the title compound (99.0 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09371320B2
Source datasetuspto-grants-2016_06
ORD IDord-9b13db6425694a85bc3e4d9f9a653b11
Source noteuspto-grants-2016_06