Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1750643Generated: October 27, 2026

1,2-Dichloroethane → N-[(1S,2S)-2-{[3-Methyl-5-(trifluoromethyl)pyrazin-2-yl]amino}cyclopentyl]-3-(2H-1,2,3-triazol-2-yl)pyridine-2-carboxamide

https://huagongshe.com/reaction/1750643

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
ReactantTriethylamineHCID 8471—
ReactantHOAtHCID 181649—
Reactant3-[1,2,3]Triazol-2-yl-pyridine-2-carboxylic acidHCID 66742288—
Reactant(1S,2S)-1-N-Methyl-1-N-[5-(trifluoromethyl)pyrazin-2-yl]cyclopentane-1,2-diamine hydrochlorideHCID 118308127—
SolventDichloromethaneHCID 6344—
ProductN-[(1S,2S)-2-{[3-Methyl-5-(trifluoromethyl)pyrazin-2-yl]amino}cyclopentyl]-3-(2H-1,2,3-triazol-2-yl)pyridine-2-carboxamideHCID 118308165—

Reaction Steps

A solution of (1S,2S)-1-N-methyl-1-N-[5-(trifluoromethyl)pyrazin-2-yl]cyclopentane-1,2-diamine hydrochloride (Intermediate 23; 60 mg, 0.20 mmol), 3-(2H-1,2,3-triazol-2-yl)pyridine-2-carboxylic acid (CAS number 1252907-86-0; 40 mg, 0.21 mmol), EDC (58 mg, 0.30 mmol), 3H-[1,2,3]triazolo[4,5-b]pyridin-3-ol (41 mg, 0.30 mmol) and triethylamine (0.085 ml, 0.61 mmol) in DCM (1 ml) was stirred at room temperature over the weekend. The reaction was concentrated in vacuo and was then purified by column chromatography (basic silica, 20 to 100% ethyl acetate/petrol) followed by column chromatography (silica, 0 to 100% ethyl acetate/petrol) to afford the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09156829B2
Source datasetuspto-grants-2015_10
ORD IDord-96d3eb83dd814945b9279c16465daaa3
Source noteuspto-grants-2015_10