Total Syntheses of (+)- and (−)-Cacospongionolide B, Cacospongionolide E, and Related Analogues. Preliminary Study of Structural Features Required for Phospholipase A2 Inhibition
摘要:
The total syntheses of the antiinflammatory marine sponge metabolites (+)-cacospongionolide B and E are described. The pivotal steps in the synthetic route include a three-step sequence that couples the two main regions of the natural product, as well as generates the side chain dihydropyran ring. The activity of the synthetic analogues against bee venom phospholipase A(2) suggests that the cacospongionolides have enantiospecific interactions with the enzyme that may be independent of the gamma-hydroxybutenolide moiety.
Total Syntheses of (+)- and (−)-Cacospongionolide B, Cacospongionolide E, and Related Analogues. Preliminary Study of Structural Features Required for Phospholipase A2 Inhibition
摘要:
The total syntheses of the antiinflammatory marine sponge metabolites (+)-cacospongionolide B and E are described. The pivotal steps in the synthetic route include a three-step sequence that couples the two main regions of the natural product, as well as generates the side chain dihydropyran ring. The activity of the synthetic analogues against bee venom phospholipase A(2) suggests that the cacospongionolides have enantiospecific interactions with the enzyme that may be independent of the gamma-hydroxybutenolide moiety.
Enantioselective Access to Key Intermediates for Salvinorin A and Analogues
作者:Don Antoine Lanfranchi、Christophe Bour、Gilles Hanquet
DOI:10.1002/ejoc.201100207
日期:2011.5
Access to enantiopure synthetic platforms that can generate keyintermediates for salvinorin A analogues through diastereoselective Diels-Alder cycloaddition between an enantiopure sulfinylquinone and semicyclic dienes is described.
描述了通过对映体纯亚磺酰基醌和半环二烯之间的非对映选择性 Diels-Alder 环加成反应,获得对映体纯合成平台的途径,该平台可以生成 Salvinorin A 类似物的关键中间体。
Total Syntheses of (+)- and (−)-Cacospongionolide B, Cacospongionolide E, and Related Analogues. Preliminary Study of Structural Features Required for Phospholipase A<sub>2</sub> Inhibition
作者:Atwood K. Cheung、Ryan Murelli、Marc L. Snapper
DOI:10.1021/jo049285e
日期:2004.8.1
The total syntheses of the antiinflammatory marine sponge metabolites (+)-cacospongionolide B and E are described. The pivotal steps in the synthetic route include a three-step sequence that couples the two main regions of the natural product, as well as generates the side chain dihydropyran ring. The activity of the synthetic analogues against bee venom phospholipase A(2) suggests that the cacospongionolides have enantiospecific interactions with the enzyme that may be independent of the gamma-hydroxybutenolide moiety.