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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1480266Generated: October 26, 2026

Trifluoroacetic acid → HCID 90203975, compound

https://huagongshe.com/reaction/1480266

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantTert-butyl 2-[[5-cyclopropyl-4-(2,2,2-trifluoroethoxy)pyridine-2-carbonyl]amino]-3,3-dimethyl-butanoateHCID 90204432—
SolventDichloromethaneHCID 6344—
ProductHCID 90203975HCID 90203975105.9%

Reaction Steps

To a solution of tert-butyl 2-[[5-cyclopropyl-4-(2,2,2-trifluoroethoxy)pyridine-2-carbonyl]amino]-3,3-dimethyl-butanoate (example 194a, 0.47 g, 1.09 mmol) in dichloromethane (3 ml) was added trifluoroacetic acid (3.73 g, 2.52 ml, 32.8 mmol) and the reaction mixture was stirred at room temperature for 14 hours. Volatiles were removed in vacuo and the residue was dissolved in toluene followed by evaporation to dryness. The procedure was repeated twice to yield the title compound (432 mg) as a crude solid which was used without any purification. MS (ESI, m/z): 373.5 (M−H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09409866B2
Source datasetuspto-grants-2016_08
ORD IDord-43b08f77a50b4e968bb0ab341a883a65
Source noteuspto-grants-2016_08