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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 270601Generated: October 30, 2026

Hydrochloric Acid → (1S,3R)-3-Ethyl-3-(4-[4-(Trifluoromethyl)pyridin-2-yl]piperazin-1-ylcarbonyl)cyclopentanamine dihydrochloride

https://huagongshe.com/reaction/270601

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactanttert-Butyl [(1S,3R)-3-ethyl-3-(4-[4-(trifluoromethyl)pyridin-2-yl]piperazin-1-ylcarbonyl)cyclopentyl]carbamateHCID 86633371—
Solvent1,4-DioxaneHCID 31275—
Product(1S,3R)-3-Ethyl-3-(4-[4-(Trifluoromethyl)pyridin-2-yl]piperazin-1-ylcarbonyl)cyclopentanamine dihydrochlorideHCID 6859685596%

Reaction Steps

tert-Butyl [(1S,3R)-3-ethyl-3-(4-[4-(trifluoromethyl)pyridin-2-yl]piperazin-1-ylcarbonyl)cyclopentyl]carbamate (0.39 g, 0.83 mmol) was dissolved in a 4 M solution of hydrogen chloride in 1,4-dioxane (3.1 mL) and the solution was stirred at room temperature overnight. The reaction solution was evaporated to give the desird product as a yellow powder (0.36 g, 96%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07449467B2
Source datasetuspto-grants-2008_11
ORD IDord-75e1d1dbf2c24d359f6f13a330b006e5
Source noteuspto-grants-2008_11