Synthesis of bicyclo[2.2.2]octane-2,3,5,6,7,8 hexols (Bishomoinositols) as glycosidase inhibitors

J Org Chem. 2008 Jun 20;73(12):4370-5. doi: 10.1021/jo800553u. Epub 2008 May 20.

Abstract

For the construction of the bicyclo[2.2.2]octane skeleton, 2,2-dimethyl-3a,7a-dihydro-1,3-benzodioxole was reacted with vinylene carbonate to give two isomeric cycloadditon products having the bicyclo[2.2.2]octane skeleton. Hydrolysis of the ketal ring and the opening of the carbonate functionality, followed by hydroxylation of the remaining double bond resulted in the formation of a symmetrical hexol. Epoxidation of the double bond in the cycloaddition products and the subsequent ring-opening reactions produce two additional hexol derivatives. One of the synthesized molecules exhibited enzyme-specific inhibition against alpha-glycosidase.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bridged Bicyclo Compounds / chemical synthesis*
  • Bridged Bicyclo Compounds / pharmacology
  • Enzyme Inhibitors / pharmacology*
  • Glycoside Hydrolases / antagonists & inhibitors*
  • Magnetic Resonance Spectroscopy
  • Spectrophotometry, Infrared

Substances

  • Bridged Bicyclo Compounds
  • Enzyme Inhibitors
  • Glycoside Hydrolases