Synthetic Studies of a Didemnin B Analog Based on a 2,3-Diamino Sugar Scaffolding
作者:Joshi M. Ramanjulu、Madeleine M. Joullié、Wen-Ren Li
DOI:10.1002/jccs.200100001
日期:2001.2
esterification via DCC (dicyclohexylcarbodiimide) were the key synthetic steps to generate an advanced intermediate in the preparation of a didemnin B analog based on a sugar scaffolding (2). This analog should provide insight into the bioactive conformation of didemnin B.
还原胺化、使用 BOP [(1H-1,2,3-benzotriazol-1-yloxy)tris(dimethylamino)-phosphonium hexafluorophosphate] 形成酰胺和通过 DCC(二环己基碳二亚胺)酯化是生成高级中间体的关键合成步骤。基于糖脚手架的二甲胺 B 类似物的制备 (2)。这种类似物应该可以深入了解 didemnin B 的生物活性构象。