Asymmetric synthesis of the cyclopentanones related to NCS and N1999A2 antitumor antibiotics
作者:Philippe Bertus、Jing-Heng Zhang、Geoffroy Sir、Jean-Marc Weibel、Patrick Pale
DOI:10.1016/s0040-4039(03)00565-3
日期:2003.4
Optically pure protected mono- or dihydroxylated cyclopentanones, precursors for the core of the antitumorantibiotics NCS and N1999A2, 1 and 2, were obtained in six to eight steps with excellent overall yields (up to 52%).