First asymmetric total synthesis of (-)-antofine by using an enantioselective catalytic phase transfer alkylation

Org Lett. 2003 Jul 24;5(15):2703-6. doi: 10.1021/ol0349007.

Abstract

[structure: see text] The first asymmetric total synthesis of a potential antitumor phenanthroindolizidine alkaloid, (-)-antofine, is described. An important feature of this synthesis is the creation of a stereogenic center by using enantioselective catalytic phase transfer alkylation, affording an unnatural alpha-amino acid derivative, together with a ring closing metathesis for pyrrolidine ring construction.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkaloids / chemical synthesis*
  • Alkaloids / chemistry
  • Alkylation
  • Catalysis
  • Cyclization
  • Indoles*
  • Phenanthrolines / chemical synthesis*
  • Phenanthrolines / chemistry
  • Pyrrolidines / chemistry
  • Stereoisomerism

Substances

  • Alkaloids
  • Indoles
  • Phenanthrolines
  • Pyrrolidines
  • antofine