The Total Synthesis of (−)-SNF4435 C and (+)-SNF4435 D
作者:Kathlyn A. Parker、Yeon-Hee Lim
DOI:10.1021/ja044733l
日期:2004.12.1
The size and positioning of substituents on a tetraene, along with the Woodward-Hoffmann rules, control the relative stereochemistry at the four adjacent chiral centers that are generated in the 8pi/6pi electrocyclization cascade. A biomimetic synthesis of (-)-SNF4435 C and (+)-SNF4435 D exploits these steric effects and allows confirmation of the predicted absolute stereochemistry of the natural products.