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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1750524Generated: November 4, 2026

Hydrochloric Acid → (1S,2S)-1-N-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]cyclopentane-1,2-diamine hydrochloride

https://huagongshe.com/reaction/1750524

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactanttert-Butyl N-[(1S,2S)-2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}cyclopentyl]carbamateHCID 118308219—
Solvent1,4-DioxaneHCID 31275—
Product(1S,2S)-1-N-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]cyclopentane-1,2-diamine hydrochlorideHCID 118308196—

Reaction Steps

To a solution of tert-butyl N-[(1S,2S)-2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}cyclopentyl]carbamate (2.23 g, 5.87 mmol) in 1,4-dioxane (20 ml) was added HCl in 1,4-dioxane (4 M, 15 ml, 60.0 mmol). The reaction was stirred at room temperature for 18 hours. The reaction mixture was concentrated in vacuo to afford the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09156829B2
Source datasetuspto-grants-2015_10
ORD IDord-f975cc9d7fef4a45ada75308aef93a44
Source noteuspto-grants-2015_10