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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1820188Generated: October 31, 2026

1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → 1-(4-(4-Chlorophenyl)piperidin-1-yl)-3-methyl-2-(5-phenyl-1,3,4-oxadiazol-2-ylamino)butan-1-one

https://huagongshe.com/reaction/1820188

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 15908—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
Reactant4-(4-chlorophenyl)piperidine HydrochlorideHCID 2757843—
Reactant3-Methyl-2-(5-phenyl-1,3,4-oxadiazol-2-ylamino)butanoic acidHCID 57889257—
SolventMethanolHCID 887—
SolventDimethylformamideHCID 6228—
Product1-(4-(4-Chlorophenyl)piperidin-1-yl)-3-methyl-2-(5-phenyl-1,3,4-oxadiazol-2-ylamino)butan-1-oneHCID 5788897545.6%

Reaction Steps

3-Methyl-2-(5-phenyl-1,3,4-oxadiazol-2-ylamino)butanoic acid (80 mg, 0.3 mmol), EDCI (65 mg, 0.33 mmol), 4-(4-chlorophenyl)-piperidine hydrochloride (78 mg, 0.33 mmol) and HOBt (40 mg, 0.3 mmol) were combined and suspended in DMF (2 mL). Diisopropylethylamine (210 μL, 1.2 mmol) was added and the reaction was stirred at rt. overnight. After this time, methanol (2 mL) was added to the reaction and the mixture was purified directly by preparative HPLC to give 1-(4-(4-chlorophenyl)piperidin-1-yl)-3-methyl-2-(5-phenyl-1,3,4-oxadiazol-2-ylamino)butan-1-one (60 mg, 30%). MS found: 439 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07601844B2
Source datasetuspto-grants-2009_10
ORD IDord-8f9b224b9e90412d8c068df9c8edf39a
Source noteuspto-grants-2009_10