N-[(3S)-Pyrrolidin-3-yl]benzamides as novel dual serotonin and noradrenaline reuptake inhibitors: impact of small structural modifications on P-gp recognition and CNS penetration

Bioorg Med Chem Lett. 2009 Sep 1;19(17):5078-81. doi: 10.1016/j.bmcl.2009.07.049. Epub 2009 Jul 31.

Abstract

The structure-activity relationship and the synthesis of novel N-[(3S)-pyrrolidin-3-yl]benzamides as dual serotonin and noradrenaline monoamine reuptake inhibitors (SNRI) is described. Preferred compound 9 aka PF-184,298 is a potent SNRI with good selectivity over dopamine reuptake inhibition (DRI), good in vitro metabolic stability, weak CYP inhibition and drug-like physicochemical properties consistent with CNS target space. Evaluation in an in vivo preclinical model of stress urinary incontinence showed 9 significantly increased urethral tone at free plasma concentrations consistent with its in vitro primary pharmacology.

MeSH terms

  • ATP Binding Cassette Transporter, Subfamily B, Member 1 / metabolism*
  • Adrenergic Uptake Inhibitors / chemical synthesis
  • Adrenergic Uptake Inhibitors / chemistry*
  • Adrenergic Uptake Inhibitors / pharmacokinetics
  • Anilides / chemical synthesis
  • Anilides / chemistry*
  • Anilides / pharmacology
  • Animals
  • Benzamides / chemical synthesis
  • Benzamides / chemistry*
  • Benzamides / pharmacokinetics
  • Cell Line
  • Central Nervous System / metabolism*
  • Dogs
  • Dopamine Uptake Inhibitors / chemical synthesis
  • Dopamine Uptake Inhibitors / chemistry
  • Dopamine Uptake Inhibitors / pharmacokinetics
  • Humans
  • Norepinephrine / metabolism
  • Pyrrolidines / chemical synthesis
  • Pyrrolidines / chemistry*
  • Pyrrolidines / pharmacology
  • Rats
  • Selective Serotonin Reuptake Inhibitors / chemical synthesis
  • Selective Serotonin Reuptake Inhibitors / chemistry*
  • Selective Serotonin Reuptake Inhibitors / pharmacokinetics
  • Structure-Activity Relationship

Substances

  • ATP Binding Cassette Transporter, Subfamily B, Member 1
  • Adrenergic Uptake Inhibitors
  • Anilides
  • Benzamides
  • Dopamine Uptake Inhibitors
  • PF 184,298
  • Pyrrolidines
  • Serotonin Uptake Inhibitors
  • Norepinephrine