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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1038549Generated: October 29, 2026

Hydrochloric Acid → HCID 66598276, compound

https://huagongshe.com/reaction/1038549

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 66598380HCID 66598380—
SolventMethanolHCID 887—
ProductHCID 66598276HCID 66598276124.9%

Reaction Steps

To a solution of tert-butyl 4-[6-(methoxycarbonyl)-4-propylpyridin-3-yl]piperazine-1-carboxylate (111 mg, 0.307 mmol) in methanol (3.0 mL), 4N aqueous solution of sodium hydroxide (383 μL, 1.53 mmol) was added under ice-cold conditions, and the mixture was stirred at room temperature overnight. The reaction solution was added 4N aqueous solution of hydrochloric acid under ice-cold conditions, and extracted with chloroform. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and concentrated in vacuo. The obtained residue was purified by silica-gel column chromatography (chloroform), and the title compound (134 mg (yield >99%)) was obtained as a yellow crystal.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08551985B2
Source datasetuspto-grants-2013_10
ORD IDord-723ec12bddb748cbb69507ca79aa1206
Source noteuspto-grants-2013_10