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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2167769Generated: October 31, 2026

Hydrochloric Acid → HCID 89618808, compound

https://huagongshe.com/reaction/2167769

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantLithium hydroxide, monohydrateHCID 168937—
Reactant(R)-methyl 4-((tert-butoxycarbonyl)amino)-1-(5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyridine-3-carbonyl)piperidine-4-carboxylateHCID 89618779—
SolventMethanolHCID 887—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 89618808HCID 8961880887.8%

Reaction Steps

LiOH.H2O (43 mg, 1 mmol) in water (2 mL) was added to a stirred solution of (R)-methyl 4-((tert-butoxycarbonyl)amino)-1-(5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyridine-3-carbonyl)piperidine-4-carboxylate (120 mg, 0.2 mmol) in THF (6 mL), MeOH (2 mL) and water (2 mL) at 20-35° C. The reaction mixture was stirred for 6 h; thereafter it was concentrated under reduced pressure to afford a crude product. The crude product thus obtained was diluted with cold water, acidified with 2N aqueous HCl solution, extracted with ethyl acetate, dried over anhydrous sodium sulphate and concentrated under reduced pressure to afford 100 mg of the title compound as a pale green solid. MS (ESI): m/z 570.2 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09045479B2
Source datasetuspto-grants-2015_06
ORD IDord-238612444f514b87abd467fb8b26d759
Source noteuspto-grants-2015_06