Total Synthesis of the Eight Diastereomers of the Syn-Anti-Syn Phytoprostanes F1 Types I and II
摘要:
Syntheses of the eight enantiomerically pure diastereomers of the syn-anti-syn phytoprostanes F-1 types I and II are described starting from D- and L-glucose. Key steps include Wittig coupling, Horner Wadsworth Emmons (HWE) reactions, and enantioselective reduction of alpha,beta-unsaturated ketones.
Syntheses of the four enantiomerically pure diastereoisomers of the phytoprostanes E1 type II and 15-E2t-isoprostanes (1−4) are described. The key steps included the preparation of the Freïmanis (±)-hydroxycyclopentenone 5, enzymatic resolution of this racemic hydroxycyclopentenone, Wittig and Horner−Wadsworth−Emmons (HWE) coupling reactions and finally enantioselective reductions.
Phytofurans (PhytoFs) are produced in plants and seeds by a non‐enzymatic free‐radical mechanism from α‐linolenic acid. The synthesis of some phytofurans is described. The phytofurans were also quantitated for the first time in the liver tissue of rats.
Vig, O P; Bari, S S; Sethi, Madhuresh K, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1991, vol. 30, # 6, p. 608 - 610
作者:Vig, O P、Bari, S S、Sethi, Madhuresh K、Sattar, M A
DOI:——
日期:——
Total Synthesis of the Eight Diastereomers of the Syn-Anti-Syn Phytoprostanes F<sub>1</sub> Types I and II
作者:Siham El Fangour、Alexandre Guy、Valérie Despres、Jean-Pierre Vidal、Jean-Claude Rossi、Thierry Durand
DOI:10.1021/jo035638i
日期:2004.4.1
Syntheses of the eight enantiomerically pure diastereomers of the syn-anti-syn phytoprostanes F-1 types I and II are described starting from D- and L-glucose. Key steps include Wittig coupling, Horner Wadsworth Emmons (HWE) reactions, and enantioselective reduction of alpha,beta-unsaturated ketones.