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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 245788Generated: November 3, 2026

Trifluoroacetic acid → HCID 71280322, compound

https://huagongshe.com/reaction/245788

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant[(R)-2-(4-cyanopiperidin-1-yl)-1-cyclopropyl-2-oxo-ethyl]-carbamic acid tert-butyl esterHCID 71279447—
SolventDichloromethaneHCID 6344—
ProductHCID 71280322HCID 71280322—

Reaction Conditions

Temperature0 °C

Reaction Steps

In a round-bottomed flask, [(R)-2-(4-cyanopiperidin-1-yl)-1-cyclopropyl-2-oxo-ethyl]-carbamic acid tert-butyl ester (2.71 g, 7.93 mmol) was dissolved in dichloromethane (50 ml). The solution was cooled to 0° C. and trifluoroacetic acid (18 ml, 234 mmol) was slowly added. After the addition was complete, the ice bath was removed and the reaction mixture was stirred at room temperature for 2 h. The reaction mixture was concentrated to provide 1-((R)-2-amino-2-cyclopropyl-acetyl)-piperidine-4-carbonitrile trifluoroacetate as a yellow oil which was used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08658646B2
Source datasetuspto-grants-2014_02
ORD IDord-132fd7700c054a4691a418451037549c
Source noteuspto-grants-2014_02