Synthesis and Antioxidant Properties of an Unnatural Plasmalogen Analogue Bearing a trans O-Vinyl Ether Linkage
摘要:
To assess the antioxidant behavior of trans-1, we first synthesized trans-allyl ether 4 by opening an (S)-glycidol derivative with an (E)-alk-2-en-ol, and then produced the unnatural E-enol ether 1 by a stereoselective iridium(I)-catalyzed olefin isomerization. Natural cis-1 was preferentially degraded by HOCl and was more protective than trans-1 against lipid peroxidation induced by a free-radical initiator, demonstrating that the geometry of the 1'-alkenyloxy bond participates in the antioxidant defensive role of 1.
Synthesis and Antioxidant Properties of an Unnatural Plasmalogen Analogue Bearing a trans <i>O</i>-Vinyl Ether Linkage
作者:Ravi S. Lankalapalli、Joseph T. Eckelkamp、Debajit Sircar、David A. Ford、Papasani V. Subbaiah、Robert Bittman
DOI:10.1021/ol9009078
日期:2009.7.2
To assess the antioxidant behavior of trans-1, we first synthesized trans-allyl ether 4 by opening an (S)-glycidol derivative with an (E)-alk-2-en-ol, and then produced the unnatural E-enol ether 1 by a stereoselective iridium(I)-catalyzed olefin isomerization. Natural cis-1 was preferentially degraded by HOCl and was more protective than trans-1 against lipid peroxidation induced by a free-radical initiator, demonstrating that the geometry of the 1'-alkenyloxy bond participates in the antioxidant defensive role of 1.