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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2074338Generated: November 2, 2026

Ammonium Chloride → 5-(Aminocarbonyl)-3-pyridyl 4-[2-(3-cyanophenyl)ethyl]-1-piperidinecarboxylate

https://huagongshe.com/reaction/2074338

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantSodium BicarbonateHCID 516892—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant5-[({4-[2-(3-Cyanophenyl)ethyl]-1-piperidyl}carbonyl)oxy]nicotinic acidHCID 57507815—
SolventDimethylformamideHCID 6228—
Product5-(Aminocarbonyl)-3-pyridyl 4-[2-(3-cyanophenyl)ethyl]-1-piperidinecarboxylateHCID 1595091179.6%

Reaction Steps

1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide hydrochloride (62 mg), 1-hydroxybenzotriazole (43 mg), ammonium chloride (43 mg) and TEA (0.038 ml) were added to a DMF (3.0 ml) solution of 5-[({4-[2-(3-cyanophenyl)ethyl]-1-piperidyl}carbonyl)oxy]nicotinic acid (102 mg), followed by stirring overnight at room temperature. An aqueous saturated sodium hydrogencarbonate solution was added to the reaction liquid, and the crystal precipitated was collected by filtration and dried. The resulting crystal was recrystallized from EtOAc/hexane to give 5-(aminocarbonyl)-3-pyridyl 4-[2-(3-cyanophenyl)ethyl]-1-piperidinecarboxylate (81 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07919495B2
Source datasetuspto-grants-2011_04
ORD IDord-228b0a7f0883460abeedbbf148e78cc6
Source noteuspto-grants-2011_04