作者:Kenneth M. Engstrom、Rodger F. Henry、Ian Marsden
DOI:10.1016/j.tetlet.2006.12.114
日期:2007.2
A linear synthesis of the glucuronide metabolite of ABT-751 was replaced with a convergent synthesis that features direct glycosidic coupling between the aglycone and a trichloroacetimidate glucuronyl donor. Structural elucidation of a unique and unexpected difluoroboron complex of the desired glycosidic coupling product along with optimization of the synthetic steps is described.
ABT-751葡糖醛酸代谢产物的线性合成被收敛性合成所取代,该收敛性合成的特征在于糖苷配基与三氯乙酰亚胺酸酯葡糖醛酸酰基供体之间的直接糖苷偶联。描述了所需糖苷偶联产物的独特且出乎意料的二氟硼配合物的结构阐明以及合成步骤的优化。