Syntheses of Some Sulfur‐Containing Polyunsaturated Fatty Acids as Potential Lipoxygenase Inhibitors
摘要:
Starting from (all-Z)-eicosa-5,8,11,14,17-pentaenoic acid (EPA) and (all-Z)-4,7,10,13,16,19-docosahexaenoic acid (DHA), several polyunsaturated fatty acids, containing a sulfur atom either in the chain or in a thiophene ring, have been synthesized as potential inhibitors of lipoxygenases.
The marine polyunsaturated natural product zooxanthellactone was synthesized in six steps and in 11% overall yield from eicosapentaenoic acid. The key synthetic steps were a Sonogashira cross-coupling reaction and a stereoselective semi-reduction. These efforts, together with NMR and optical rotation data, confirmed the reported structure of zooxanthellactone. (C) 2014 Elsevier Ltd. All rights reserved.
EPA-EE was converted in eight steps and 15% overall yield to the natural product (all-Z)-hentriaconta-3,6,9,12,15,19,22,25,28-nonaene. The synthesis confirms the all-Z-configuration of all nine double bonds.
Starting from (all-Z)-eicosa-5,8,11,14,17-pentaenoic acid (EPA) and (all-Z)-4,7,10,13,16,19-docosahexaenoic acid (DHA), several polyunsaturated fatty acids, containing a sulfur atom either in the chain or in a thiophene ring, have been synthesized as potential inhibitors of lipoxygenases.
The marine polyunsaturated natural product zooxanthellactone was synthesized in six steps and in 11% overall yield from eicosapentaenoic acid. The key synthetic steps were a Sonogashira cross-coupling reaction and a stereoselective semi-reduction. These efforts, together with NMR and optical rotation data, confirmed the reported structure of zooxanthellactone. (C) 2014 Elsevier Ltd. All rights reserved.