Enantioselective Parallel Synthesis Using Polymer-Supported Chiral Co(salen) Complexes
摘要:
[GRAPHICS]The kinetic resolution of epoxides with phenols catalyzed by a polymer supported Co(salen) complex is applied to the first enantioselective catalytic synthesis of parallel libraries, The corresponding 1-aryloxy-2-alcohols are obtained in high yield, purity, and enantiomeric excess. Further elaboration with diversity elements provides highly efficient access to important classes of pharmacologically active compounds.
Discovery of selective dopamine D4 receptor antagonists: 1-Aryloxy-3-(4-aryloxypiperidinyl)-2-propanols
作者:Jon L. Wright、Tracy F. Gregory、Thomas G. Heffner、Robert G. MacKenzie、Thomas A. Pugsley、Seth Vander Meulen、Lawrence D. Wise
DOI:10.1016/s0960-894x(97)00233-3
日期:1997.6
High volume screening identified 3-(4-benzylpiperidinyl)-1-naphthoxy-2-propanol as a selective dopamine D4 receptor Ligand. A systematic structure-activity study revealed that the benzyl group could be replaced with phenoxy and the naphthalene with phenyl to improve potency almost tenfold. The (R) enantiomer of this compound had a D4 affinity of 2 nM and was over 100-fold weaker at dopamine D2 and D3 receptors. (C) 1997 Elsevier Science Ltd.