Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 332716Generated: October 25, 2026

Water → (R)-2-(6-chloro-5-cyanopyrazin-2-ylamino)-4-methylpentanamide

https://huagongshe.com/reaction/332716

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantDiisopropylethylamineHCID 81531—
Reactant3,5-Dichloropyrazine-2-carbonitrileHCID 52987744—
Reactant(R)-2-Amino-4-methylpentanamide hydrochlorideHCID 56776963—
SolventEthyl AcetateHCID 8857—
SolventN-methyl-2-pyrrolidoneHCID 13387—
Product(R)-2-(6-chloro-5-cyanopyrazin-2-ylamino)-4-methylpentanamideHCID 8668552899.9%

Reaction Steps

A solution of 3,5-dichloropyrazine-2-carbonitrile (348 mg, 2.00 mmol), D-leucinamide hydrochloride (333 mg, 2.00 mmol) and DIEA (1.00 mL, 5.75 mmol) in NMP (8 mL) was stirred at room temperature for 20 h. Water and EtOAc were added. Organic phase was separated, dried over Na2SO4, concentrated in vacuo to give (R)-2-(6-chloro-5-cyanopyrazin-2-ylamino)-4-methylpentanamide as an oil (535 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08877760B2
Source datasetuspto-grants-2014_11
ORD IDord-0385adcc6f644b019f4da24fcf50a9c5
Source noteuspto-grants-2014_11