Practical Route to a New Class of LTD4 Receptor Antagonists
摘要:
A general approach to the synthesis of a new class of LTD(4) antagonists is presented. The key diarylpropane framework was prepared by Claisen-Schmidt condensation and selective reduction of the enone. Depending on the bridge to the 7-chloroquinaldine moiety, alkylation or Heck coupling methodology was developed. The chiral sulfides were introduced by asymmetric reduction of the diarylpropanone intermediates and subsequent inversion of the chiral center.
Practical Route to a New Class of LTD4 Receptor Antagonists
摘要:
A general approach to the synthesis of a new class of LTD(4) antagonists is presented. The key diarylpropane framework was prepared by Claisen-Schmidt condensation and selective reduction of the enone. Depending on the bridge to the 7-chloroquinaldine moiety, alkylation or Heck coupling methodology was developed. The chiral sulfides were introduced by asymmetric reduction of the diarylpropanone intermediates and subsequent inversion of the chiral center.