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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2074317Generated: October 27, 2026

Ethyl Acetate → 3-Pyridyl 4-[4-(cyclooctylmethoxy)benzoyl]-1-piperazinecarboxylate

https://huagongshe.com/reaction/2074317

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantCyclooctanemethanolHCID 77196—
ReactantDiisopropylethylamineHCID 81531—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant4-(Cyclooctylmethoxy)benzoic acidHCID 57421841—
SolventDimethylformamideHCID 6228—
Product3-Pyridyl 4-[4-(cyclooctylmethoxy)benzoyl]-1-piperazinecarboxylateHCID 67067042—

Reaction Steps

1-Ethyl-3-(dimethylaminopropyl)carbodiimide hydrochloride (150 mg), 1-hydroxybenzotriazole (110 mg) and diisopropylethylamine (0.23 ml) were added to a DMF (5 ml) solution containing the resulting compound (190 mg) and 4-(cyclooctylmethoxy)benzoic acid (176 mg) prepared from cyclooctylmethanol with reference to Reference Example 70, followed by stirring overnight at room temperature. The reaction solution was diluted with EtOAc, the organic layer was washed with aqueous saturated sodium hydrogencarbonate solution, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and the residue was recrystallized from EtOAc/hexane to obtain 3-pyridyl 4-[4-(cyclooctylmethoxy)benzoyl]-1-piperazinecarboxylate (240 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07919495B2
Source datasetuspto-grants-2011_04
ORD IDord-57f18fc743504c35b01068ff74f3efd6
Source noteuspto-grants-2011_04