A Short, Scalable Synthesis of the Carbocyclic Core of the Anti-Angiogenic Cortistatins from (+)-Estrone by B-Ring Expansion
作者:László Kürti、Barbara Czakó、E. J. Corey
DOI:10.1021/ol802328n
日期:2008.11.20
the potent antiangiogenic natural products, the cortistatins, is presented starting from readily available (+)-estrone. Key steps include a regio- and stereoselective benzylic cyanation and a Demjanovrearrangement.