Synthesis 2023; 55(22): 3833-3840
DOI: 10.1055/s-0042-1751484
paper

Conformationally Restricted Carbocyclic γ-Amino Acids: Synthesis of Diastereomeric 3-Amino-5-arylcyclopentane 1-Carboxylic Acids

Adrien Dumas
a   Department of Chemistry, Université de Montréal, Montréal, QC, H3C 3J7, Canada
,
Da Li
a   Department of Chemistry, Université de Montréal, Montréal, QC, H3C 3J7, Canada
,
Steven Bonert
a   Department of Chemistry, Université de Montréal, Montréal, QC, H3C 3J7, Canada
,
Prashansing Aubeelucksing
a   Department of Chemistry, Université de Montréal, Montréal, QC, H3C 3J7, Canada
,
Arnaud-Pierre Schaffner
b   Institut de Recherches SERVIER, 125 Chemin de Ronde, 78290 Croissy sur Seine, France
,
Stephen Hanessian
a   Department of Chemistry, Université de Montréal, Montréal, QC, H3C 3J7, Canada
› Institutsangaben
NSERC Canada; NSERC/Servier Senior Industrial Chair Program (IRCPJ 531309-17).


Abstract

A Trost Pd-catalyzed [3+2] cycloaddition between a p-benzyloxy cinnamate bearing an Evans auxiliary and 1-trimethylsilyl-2-acetoxymethylpropene is disclosed leading to, after functional group manipulation, previously unreported diastereoisomeric 3-amino-5-arylcyclopentane 1-carboxylic acids via the corresponding 3-hydroxy and 3-azido precursors. The availability of these conformationally restricted cyclic amino acids may find utility in the context of CNS-active compounds related to GABA, or as peripheral units of bioactive pharmaceuticals. An expedient alternative 4-step synthesis of 3S-amino-5S-p-hydroxyphenyl-1S-cyclopentane carboxylic acid methyl ester was achieved starting with the (–)-Vince lactam and utilizing a regio- and diastereoselective Pd-catalyzed hydroarylation reaction.

Supporting Information



Publikationsverlauf

Eingereicht: 09. Mai 2023

Angenommen nach Revision: 10. Juli 2023

Artikel online veröffentlicht:
04. September 2023

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