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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1959368Generated: November 2, 2026

Triethylamine → 5-(1-(Ethylsulfonyl)-1,2,3,6-tetrahydropyridin-4-yl)-3-(5-phenyl-1,3,4-oxadiazol-2-yl)pyrazin-2-amine

https://huagongshe.com/reaction/1959368

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantEthanesulfonyl chlorideHCID 11667—
Reactant3-(5-Phenyl-1,3,4-oxadiazol-2-yl)-5-(1,2,3,6-tetrahydropyridin-4-yl)pyrazin-2-amineHCID 46199557—
SolventDichloromethaneHCID 6344—
Product5-(1-(Ethylsulfonyl)-1,2,3,6-tetrahydropyridin-4-yl)-3-(5-phenyl-1,3,4-oxadiazol-2-yl)pyrazin-2-amineHCID 66745073100%

Reaction Steps

3-(5-phenyl-1,3,4-oxadiazol-2-yl)-5-(1,2,3,6-tetrahydropyridin-4-yl)pyrazin-2-amine (50 mg, 0.1151 mmol) was dissolved in DCM (3 mL) and Et3N (34.94 mg, 48.13 μL, 0.3453 mmol) followed by ethanesulfonyl chloride (16.28 mg, 12.00 μL, 0.1266 mmol) were added. The reaction was allowed to stir for 30 mins and then diluted with dichloromethane and washed with water. The aqueous layer was extracted further with dichloromethane and the organics washed with saturated aqueous NaHCO3, dried over MgSO4 and concentrated in vacuo. The resultant residue was purified on silica gel by flash column chromatography (0-5% MeOH/DCM) to afford the title compound (47.47 mg, 60% Yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08410112B2
Source datasetuspto-grants-2013_04
ORD IDord-95b8c108bda14ba7b48eb0e630a64324
Source noteuspto-grants-2013_04