Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2240320Generated: November 4, 2026

alpha-Cyclopentylmandelic acid → (R)-3-(2-Cyclopentyl-2-hydroxy-2-phenyl-acetoxy)-1-(pyrazin-2-ylcarbamoylmethyl)-1-azonia-bicyclo[2.2.2]octane bromide

https://huagongshe.com/reaction/2240320

Reaction equation

Participants

RoleNameHCIDCharge
Reactantalpha-Cyclopentylmandelic acidHCID 98283—
Reactant(R)-3-Hydroxy-1-(isoxazol-3-ylcarbamoylmethyl)-1-azonia-bicyclo[2.2.2]octane bromideHCID 86627857—
Reactant(R)-3-Hydroxy-1-(pyrazin-2-ylcarbamoylmethyl)-1-azonia-bicyclo[2.2.2]octane bromideHCID 86627863—
Product(R)-3-(2-Cyclopentyl-2-hydroxy-2-phenyl-acetoxy)-1-(pyrazin-2-ylcarbamoylmethyl)-1-azonia-bicyclo[2.2.2]octane bromideHCID 11656809—

Reaction Steps

This compound is prepared using an method analogous to Example 4 by replacing (R)-3-hydroxy-1-(isoxazol-3-ylcarbamoylmethyl)-1-azonia-bicyclo[2.2.2]octane bromide (Intermediate A) with (R)-3-Hydroxy-1-(pyrazin-2-ylcarbamoylmethyl)-1-azonia-bicyclo[2.2.2]octane bromide (Intermediate H) and 2,2′-diphenylpropionic acid with cyclopentyl-hydroxy-phenyl-acetic acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07723356B2
Source datasetuspto-grants-2010_05
ORD IDord-ff950b8ef1184a0faa9b04c403338fbf
Source noteuspto-grants-2010_05