Biomimetic syntheses of rubialatins A, B and related congeners

Org Lett. 2015 Mar 20;17(6):1441-4. doi: 10.1021/acs.orglett.5b00321. Epub 2015 Feb 27.

Abstract

The first total syntheses of rubialatins A and B, two newly discovered naphthohydroquinone dimers, were achieved with high efficiency and elegancy through rationally designed biomimetic approaches. The tandem ring contraction/Michael addition/aldol reaction followed by oxidation enabled the rapid access of prerubialatin from readily available precursors, which then diverted into rubialatins A and B via epoxidation and photoinduced skeletal rearrangement, respectively. Moreover, several new rubialatin congeners were also obtained along the synthetic tour, some of which were proved to be authentic natural products.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biological Products / chemical synthesis*
  • Biological Products / chemistry
  • Catalysis
  • Hydroquinones / chemical synthesis*
  • Hydroquinones / chemistry
  • Molecular Structure
  • Rubia / chemistry
  • Stereoisomerism

Substances

  • Biological Products
  • Hydroquinones
  • rubialatin A
  • rubialatin B