描述了 callipeltoside A 的对映选择性全合成。包括大环内酯亚基的两种合成:第一种依赖于爱尔兰-克莱森重排来产生三取代的烯烃几何结构,第二种利用对映选择性插烯羟醛反应来实现此目的。还公开了糖和氯代环丙烷侧链片段的对映选择性合成。该天然产物的相对和绝对立体化学通过与侧链片段的两种对映异构体的片段偶联来确定。
描述了 callipeltoside A 的对映选择性全合成。包括大环内酯亚基的两种合成:第一种依赖于爱尔兰-克莱森重排来产生三取代的烯烃几何结构,第二种利用对映选择性插烯羟醛反应来实现此目的。还公开了糖和氯代环丙烷侧链片段的对映选择性合成。该天然产物的相对和绝对立体化学通过与侧链片段的两种对映异构体的片段偶联来确定。
The first stereoselective total syntheses of the bioactive marine polyacetylenes (−)-siphonodiol and (−)-tetrahydrosiphonodiol were achieved using highly convergent approaches based on optimized Cadiot−Chodkiewicz and sequential Sonogashira cross-coupling reactions.
Vekemans, Jozef A. J. M.; Boerekamp, Jack; Godefroi, Erik F., Recueil des Travaux Chimiques des Pays-Bas, 1985, vol. 104, # 10, p. 266 - 272
作者:Vekemans, Jozef A. J. M.、Boerekamp, Jack、Godefroi, Erik F.
DOI:——
日期:——
An Expeditious Synthesis of DPD and Boron Binding Studies
作者:Martin F. Semmelhack、Shawn R. Campagna、Michael J. Federle、Bonnie L. Bassler
DOI:10.1021/ol047695j
日期:2005.2.1
A practical synthesis has been developed for DPD (4,5-dihydroxypentane-2,3-dione), an unstable small molecule that is proposed to be the source of universal signaling agents for quorum sensing in bacteria. The synthesis allows preparation of isotopically labeled DPD and entDPD as well as detailed studies of spontaneous binding to borate to give the unusual borate complex 6, the signal for marine bacteria such as Vibrio harveyi.