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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1750529Generated: November 2, 2026

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

https://huagongshe.com/reaction/1750529

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactanttert-Butyl N-[(1S,2S)-2-{[3-methyl-5-(trifluoromethyl)pyridin-2-yl]amino}cyclopentyl]carbamateHCID 118308071—
Solvent1,4-DioxaneHCID 31275—
Product(1S,2S)-1-N-[3-Methyl-5-(trifluoromethyl)pyridin-2-yl]cyclopentane-1,2-diamine hydrochlorideHCID 118308266—

Reaction Steps

To a solution of tert-butyl N-[(1S,2S)-2-{[3-methyl-5-(trifluoromethyl)pyridin-2-yl]amino}cyclopentyl]carbamate (580 mg, 1.614 mmol) in 1,4-dioxane (5 ml) was added HCl in 1,4-dioxane (4M, 4 ml, 16.00 mmol). The reaction was stirred at room temperature for 18 hours. The reaction mixture was concentrated in vacuo and azeotropically distilled with toluene to afford the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09156829B2
Source datasetuspto-grants-2015_10
ORD IDord-c2d6fa1b46ac43dea7e7eeb88abc0e19
Source noteuspto-grants-2015_10