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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1909220Generated: October 30, 2026

Water → HCID 178469152, compound

https://huagongshe.com/reaction/1909220

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEthyl AcetateHCID 8857—
ReactantN-chlorosuccinamideHCID 15238416—
ReactantHCID 178469345HCID 178469345—
SolventDimethylformamideHCID 6228—
ProductHCID 178469152HCID 17846915269.9%

Reaction Conditions

Temperature60 °C

Reaction Steps

To a stirred solution of ethyl 6-hydroxy-1-isopropyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate (1.3 g, 5.2 mmol) in DMF (7 mL), N-chlorosuccinamide (1.11 g, 8.35 mmol) was added. The resulting reaction mixture was stirred at 60° C. for 1 h. On completion of reaction, water was added to it and extraction was carried out using ethyl acetate; the combined organic layers were washed with water, brine and dried over anhydrous Na2SO4. Solvent was removed under reduced pressure and residue was purified by silica gel column chromatography to obtain the desired intermediate (1 g, 69.9%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08598167B1
Source datasetuspto-grants-2013_12
ORD IDord-a9fa4f1cc6d4467da90884ecd9c5c658
Source noteuspto-grants-2013_12