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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1034869Generated: October 30, 2026

Water → HCID 67081456, compound

https://huagongshe.com/reaction/1034869

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantLithium HydroxideHCID 3939—
ReactantPropionyl chlorideHCID 62324—
ReactantHCID 67081885HCID 67081885—
SolventPyridineHCID 1049—
SolventDichloromethaneHCID 6344—
SolventN-methyl-2-pyrrolidoneHCID 13387—
SolventAcetonitrile--water (1/1)HCID 18373917—
ProductHCID 67081456HCID 6708145646.5%

Reaction Steps

(R)-tert-Butyl 1-(3-amino-5-chloro-1H-pyrrolo[2,3-b]pyridin-4-yl)piperidin-3-yl(methyl)carbamate (0.300 g, 0.790 mmol; Example 112, Step A) in NMP (2 mL), pyridine (1 mL) and propionyl chloride (0.365 g, 3.95 mmol) were stirred at room temperature for 1 hour. 3M aqueous LiOH (3 mL) was then added, and the reaction was stirred for 10 minutes. Water (10 mL) and DCM (10 mL) were then added, and the organic fraction was separated, dried, filtered, and concentrated. The crude residue was purified by reverse phase chromatography (Biotage SP4, C-18 25M+, 0-95% CH3CN/water) to give (R)-tert-butyl 1-(5-chloro-3-propionamido-1H-pyrrolo[2,3-b]pyridin-4-yl)piperidin-3-yl(methyl)carbamate (0.160 g, 46% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08545897B2
Source datasetuspto-grants-2013_10
ORD IDord-0a999f0fe20943499644f2532d91bc8a
Source noteuspto-grants-2013_10