Synthesis of a chiral artificial receptor with catalytic activity in Michael additions and its chiral resolution by a new methodology
作者:Luis Simón、Francisco M. Muñiz、Ángel Fuentes de Arriba、Victoria Alcázar、César Raposo、Joaquín R. Morán
DOI:10.1039/b925367j
日期:——
derivatives were tested as organocatalysts for the Michaeladdition of pyrrolidine to an α,β-unsaturated lactam. The receptors combine a double H-bond donor pattern that resembles the oxyanionhole in natural enzymes, with a sulfone or sulfoxide that acts as a proton-transfer group. Since these compounds cannot be obtained enantiomerically pure from natural sources, chiral resolution was necessary to
Synthesis and structure activity relationships of potent new angiotensin converting enzyme inhibitors containing saturated bicyclic amino acids
作者:C. J. Blankley、J. S. Kaltenbronn、D. E. DeJohn、A. Werner、L. R. Bennett、G. Bobowski、U. Krolls、D. R. Johnson、W. M. Pearlman
DOI:10.1021/jm00389a006
日期:1987.6
The synthesis of a series of novel, potentangiotensinconvertingenzyme (ACE) inhibitors containing saturated bicyclic amino acids in place of proline is described. Octahydroindole-2-carboxylic acid, octahydroisoindole-1-carboxylic acid, and octahydro-3-oxoisoindole-1-carboxylic acid can replace proline in both sulfhydryl and non-sulfhydryl ACE inhibitors to give compounds equipotent to captopril