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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 245739Generated: October 29, 2026

Hydrochloric Acid → HCID 178523386, compound

https://huagongshe.com/reaction/245739

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTriethylamineHCID 8471—
Reactant1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 15908—
ReactantHOAtHCID 181649—
Reactant(3-Chloropyrazin-2-yl)methanamine hydrochlorideHCID 42614233—
ReactantHCID 178523389HCID 178523389—
SolventDichloromethaneHCID 6344—
ProductHCID 178523386HCID 17852338698.6%

Reaction Steps

A mixture of (3-chloropyrazin-2-yl)methanamine hydrochloride (5 g, 21.38 mmol), (trans)-4-((benzyloxycarbonylamino)methyl)cyclohexanecarboxylic acid (6.23 g, 21.38 mmol), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide) hydrochloride (4.51 g, 23.52 mmol), 1-hydroxy-7-azabenzotriazole (1.455 g, 10.69 mmol), and triethyl amine (4.76 ml, 34.2 mmol) in dichloromethane (60 ml) was stirred at room temperature overnight. The mixture was concentrated and the residue was purified by column chromatography (silica gel, dichloromethane with gradient 0.5 to 5% of methanol) to yield benzyl((trans)-4-((3-chloropyrazin-2-yl)methylcarbamoyl)cyclohexyl)methylcarbamate (8.79 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08658794B2
Source datasetuspto-grants-2014_02
ORD IDord-3480860f57ad409e85177266be1d3596
Source noteuspto-grants-2014_02