Chemical Properties
white to beige powder
Uses
2-Cyclopentyl-2-hydroxy-2-phenylacetic Acid is an impurity of Glycopyrrolate (G657000), a novel pharmaceutical compound based on PDE IV inhibitors; used in the treatment of respiratory complaints. It is used in the synthesis of muscarinic M3 receptor antagonists.
Uses
intermediate for Glycopyrronium Bromide, Oxyphencyclimine HCl, Oxypyrronium Bromide
Research
Resolving racemic alpha-cyclopentylmandelic acid by a chemical resolution method by using L-Tyrosine methyl ester and (R)-alpha-phenylethylamine as resolution reagents to respectively prepare (S)-alpha-cyclopentylmandelic acid and (R)-alpha-cyclopentylmandelic acid; and carrying out esterification reaction to respectively obtain chiral intermediates (S)/(R)-alpha-cyclopentylmethyl mandelate. Multistage enantioselective liquid-liquid extraction (ELLE) of α--cyclopentyl-mandelic acid (α-CPMA) enantiomers using hydroxyethyl-β-cyclodextrin (HE-β-CD) as extractant was studied in a cascade of centrifugal contactor separators (CCSs)[1].
References
[1] Panliang Zhang. “Study on enantioseparation of α-cyclopentyl-mandelic acid enantiomers using continuous liquid-liquid extraction in centrifugal contactor separators: Experiments and modeling.” Chemical Engineering and Processing - Process Intensification 107 (2016): Pages 168-176.
