Diastereoselective Synthesis of the Pectenotoxin 2 Non-Anomeric AB Spiroacetal
摘要:
The reductive cyclization reaction of a cyanoacetal has been used to prepare the pectenotoxin 2 (PTX-2) AB spiroacetal with high diastereoselectively for the first time. The strategy is convergent and makes use of the axial-selective reductive lithiation of 2-cyano tetrahydropyran rings to introduce the spiroacetal center with the desired non-anomeric selectivity.
Diastereoselective Synthesis of the Pectenotoxin 2 Non-Anomeric AB Spiroacetal
摘要:
The reductive cyclization reaction of a cyanoacetal has been used to prepare the pectenotoxin 2 (PTX-2) AB spiroacetal with high diastereoselectively for the first time. The strategy is convergent and makes use of the axial-selective reductive lithiation of 2-cyano tetrahydropyran rings to introduce the spiroacetal center with the desired non-anomeric selectivity.
Diastereoselective Synthesis of the Pectenotoxin 2 Non-Anomeric AB Spiroacetal
作者:Danielle Vellucci、Scott D. Rychnovsky
DOI:10.1021/ol0630447
日期:2007.2.1
The reductive cyclization reaction of a cyanoacetal has been used to prepare the pectenotoxin 2 (PTX-2) AB spiroacetal with high diastereoselectively for the first time. The strategy is convergent and makes use of the axial-selective reductive lithiation of 2-cyano tetrahydropyran rings to introduce the spiroacetal center with the desired non-anomeric selectivity.