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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 332817Generated: October 30, 2026

Diisopropylethylamine → (R)-benzyl-1-((6-chloro-5-cyanopyrazin-2-ylamino)(cyclopropyl)methyl)cyclopropylcarbamate

https://huagongshe.com/reaction/332817

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant3,5-Dichloropyrazine-2-carbonitrileHCID 52987744—
Reactant(R)-benzyl 1-(amino(cyclopropyl)methyl)cyclopropylcarbamate HCl saltHCID 131732000—
SolventEthyl AcetateHCID 8857—
Solvent2-OxopropiononitrileHCID 69430—
Product(R)-benzyl-1-((6-chloro-5-cyanopyrazin-2-ylamino)(cyclopropyl)methyl)cyclopropylcarbamateHCID 86685610101.4%

Reaction Steps

To a mixture of 3,5-dichloropyrazine-2-carbonitrile (208 mg, 1.19 mmol) and (R)-benzyl 1-(amino(cyclopropyl)methyl)cyclopropylcarbamate HCl salt (350 mg, 1.19 mmol) in AcCN (2 mL) was added DIPEA (0.467 mL, 2.62 mmol). After stirring at room temperature for 3 h, it was diluted with EtOAc, washed with sat. NaHCO3, organic layer was separated and washed with brine, dried and concentrated to give (R)-benzyl-1-((6-chloro-5-cyanopyrazin-2-ylamino)(cyclopropyl)methyl)cyclopropylcarbamate (480 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08877760B2
Source datasetuspto-grants-2014_11
ORD IDord-ff139d9556c2474dbcd8d63c1d8f610a
Source noteuspto-grants-2014_11