The first total synthesis of the highly unstable biological mediator 12-ketoeicosatetraenoic acid (12-KETE) 3 and its 8,9-trans-isomer 20 is presented. The strategy focuses on the stable precursor dithiane 13 and its conversion to 9 and 20. Biochemical experiments show that the two isomers are not interconverted in vivo, raising the possibility that the trans-isomer 20 may be formed by a primary biochemical mechanism.
The first total synthesis of the highly unstable biological mediator 12-ketoeicosatetraenoic acid (12-KETE) 3 and its 8,9-trans-isomer 20 is presented. The strategy focuses on the stable precursor dithiane 13 and its conversion to 9 and 20. Biochemical experiments show that the two isomers are not interconverted in vivo, raising the possibility that the trans-isomer 20 may be formed by a primary biochemical mechanism.
Total synthesis of proinflammatory dihydro-12-KETE metabolites
作者:Steven S. Wang、Xiao-Xin Shi、William S. Powell、Tamara Tieman、Steven J. Feinmark、Joshua Rokach
DOI:10.1016/0040-4039(94)02298-p
日期:1995.1
The first totalsynthesis of the 10,11-dihydro-12-etoicosaetranoic acid (10,11-dihydro-12-KETE) , a proinflammatory metabolite of 12-KETE is reported. In addition, the totalsynthesis of two other potential metabolites of 12-KETE, namely 8,11-dihydro-12-KETE and 8,9-dihydro-12-KETE , is also described. These three synthetic compounds are aimed at investigating a new biosynthetic reductive pathway for