Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208, USA.
Angew Chem Int Ed Engl. 2012 Mar 5;51(10):2481-4. doi: 10.1002/anie.201108227. Epub 2012 Jan 27.
The first enantioselective total synthesis of (−)-GB17 is reported. Construction of this unique naphthoquinolizinone skeleton was achieved by two stereoselective intramolecular Michael additions. The first of these Michael additions is controlled by the use of a chiral organocatalyst, while the second cyclization is under substrate control and proceeds with concomitant lactam formation.
首次报道了(-)-GB17 的对映选择性全合成。通过两个立体选择性的分子内迈克尔加成反应构建了这种独特的萘醌并里西啶骨架。第一个迈克尔加成反应由手性有机催化剂控制,而第二个环化反应受底物控制并伴随着内酰胺形成。