Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2200391Generated: November 2, 2026

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

https://huagongshe.com/reaction/2200391

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 numberUS09359308B2
Source datasetuspto-grants-2016_06
ORD IDord-d490c670f2454797a7e4323b74aeb677
Source noteuspto-grants-2016_06