Synthesis of the B-<i>seco</i> limonoid core scaffold
作者:Hanna Bruss、Hannah Schuster、Rémi Martinez、Markus Kaiser、Andrey P Antonchick、Herbert Waldmann
DOI:10.3762/bjoc.10.15
日期:——
towards the structurally complex and highly decorated framework of B-seco limonoid natural products by means of a [3,3]-sigmatropic rearrangement are described. Detailed model studies reveal, that an Ireland-Claisen rearrangement can be employed to construct the central C9-C10 bond thereby giving access to the B-seco limonoid scaffold. However, application of the developed strategy ended up failing
Stereoselective Reactions of a (−)-Quinic Acid-Derived Enone: Application to the Synthesis of the Core of Scyphostatin
作者:Lynne M. Murray、Peter O'Brien、Richard J. K. Taylor
DOI:10.1021/ol034521d
日期:2003.5.1
protected as a 2,3-dimethoxybutanediyldioxy ketal, provides an excellent template for further highly stereoselective elaboration as exemplified by its conversion into the core of scyphostatin, a potent inhibitor of neutralsphingomyelinase.