Synthesis of novel steroid-peptoid hybrid macrocycles by multiple multicomponent macrocyclizations including bifunctional building blocks (MiBs)

Molecules. 2007 Aug 17;12(8):1890-9. doi: 10.3390/12081890.

Abstract

Two new groups of cholane-peptoid hybrid macrocycles were produced by implementing novel combinations of the MiB methodology. Steroid-based hybrid macrolactams including heterocycle and aryl moieties were obtained by utilizing cholanic dicarboxylic acids and diamines in a bidirectional double Ugi-Four-Component (Ugi-4CR) based macrocyclization protocol. Alternatively, N-substituted cyclocholamides were produced from a cholanic pseudo-amino acid by an Ugi-4CR-based cyclooligomerization approach. Both types of macrocycles are steroid-peptoid hybrid macrocycles containing exocyclic peptidic chains. These novel frameworks are a result of the use of bile acids bifunctionalized with carboxylic and amino functionalities as bifunctional building blocks of the Ugi-MiB approach.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Contraindications
  • Cyclization
  • Lactams, Macrocyclic / chemical synthesis*
  • Lactams, Macrocyclic / chemistry
  • Peptoids / chemical synthesis*
  • Peptoids / chemistry
  • Steroids / chemical synthesis*
  • Steroids / chemistry

Substances

  • Lactams, Macrocyclic
  • Peptoids
  • Steroids