Enantioselective synthesis of a highly potent selective serotonin reuptake inhibitor. An application of imidazolidinone catalysis to the alkylation of indoles with an alpha,beta-disubstituted alpha,beta-unsaturated aldehyde

Org Lett. 2005 Aug 4;7(16):3437-40. doi: 10.1021/ol051000c.

Abstract

The synthesis of the highly potent and selective serotonin reuptake inhibitor 1 (BMS-594726) is described. In the key construction step, an enantioselective alkylation of the indole nucleus with an alpha-branched alpha,beta-unsaturated aldehyde 7 was accomplished utilizing MacMillan's imidazolidinone catalyst 3b. A rationale is presented for the unexpected stereochemical result, as well as the novel reactivity of the alpha-branched substrate. [reaction: see text]

MeSH terms

  • Aldehydes / chemistry
  • Catalysis
  • Cyclopentanes / chemical synthesis*
  • Cyclopentanes / chemistry
  • Cyclopentanes / pharmacology*
  • Imidazoles / chemistry*
  • Indoles / chemical synthesis*
  • Indoles / chemistry
  • Indoles / pharmacology*
  • Selective Serotonin Reuptake Inhibitors / chemical synthesis*
  • Selective Serotonin Reuptake Inhibitors / chemistry
  • Selective Serotonin Reuptake Inhibitors / pharmacology*
  • Stereoisomerism

Substances

  • Aldehydes
  • BMS-594726
  • Cyclopentanes
  • Imidazoles
  • Indoles
  • Serotonin Uptake Inhibitors