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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2200490Generated: October 25, 2026

Diisopropylethylamine → HCID 86685607, compound

https://huagongshe.com/reaction/2200490

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant3,5-Dichloropyrazine-2-carbonitrileHCID 52987744—
Reactant(2R)-2-amino-3-methylbutanamide hydrochlorideHCID 53486046—
SolventEthyl AcetateHCID 8857—
Solvent2-OxopropiononitrileHCID 69430—
ProductHCID 86685607HCID 86685607102.7%

Reaction Steps

To a mixture of 3,5-dichloropyrazine-2-carbonitrile (500 mg, 2.84 mmol) and D-valinamide HCl salt (476 mg, 3.12 mmol) in AcCN (10 mL) was added DIPEA (1.11 mL, 6.25 mmol). After stirring at room temperature for 4 h, it was diluted with EtOAc, washed with sat. NaHCO3, organic layer was separated and washed with brine, dried and concentrated to give (R)-2-(6-chloro-5-cyanopyrazin-2-ylamino)-3-methylbutanamide (740 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09359308B2
Source datasetuspto-grants-2016_06
ORD IDord-830d15457a8440c78c986261d96efdfc
Source noteuspto-grants-2016_06