Our synthetic approach toward fasicularin is presented. Key steps in this construction are a siloxy-epoxide semipinacol rearrangement, a B-alkyl Suzuki reaction and an intramolecular S(N)2 reaction.
Our synthetic approach toward fasicularin is presented. Key steps in this construction are a siloxy-epoxide semipinacol rearrangement, a B-alkyl Suzuki reaction and an intramolecular S(N)2 reaction.
An Asymmetric Formal Synthesis of Fasicularin
作者:Micha�l D. B. Fenster、Gregory R. Dake
DOI:10.1002/chem.200400749
日期:2005.1.7
An asymmetric formal synthesis of fasicularin (1) is described. This natural product, isolated from the extracts of the marine invertebrate Nephteis fasicularis, has shown modest cytotoxicity towards Vero cells. Fasicularin is among only two members of the cylindricinefamily of natural products, along with lepadiformine (2), to possess a trans A-B ring junction. Key steps of this approach to 1 involve