Large-Scale Synthesis of the Glucosylceramide Synthase Inhibitor <i>N</i>-[5-(Adamantan-1-yl-methoxy)-pentyl]-1-deoxynojirimycin
作者:Tom Wennekes、Bernhard Lang、Michel Leeman、Gijsbert A. van der Marel、Elly Smits、Matthias Weber、Jim van Wiltenburg、Michael Wolberg、Johannes M.F.G. Aerts、Herman S. Overkleeft
DOI:10.1021/op700295x
日期:2008.5.1
A synthetic route for the preparation of glucosylceramide synthase inhibitor N-[5-(adamantan-1-yl-methoxy)-pentyl]-1-deoxynojirimycin methanesulfonic acid salt (AMP-DNM) has been developed. Herein we report the development and optimization of this synthetic route from its initial version in an academic research laboratory at milligram-scale to the final optimized route that was implemented in a cGMP
已开发出制备葡萄糖基神经酰胺合酶抑制剂N- [5-(金刚烷-1-基-甲氧基)-戊基] -1-脱氧野oji霉素甲磺酸盐(AMP-DNM)的合成途径。本文中,我们报告了这种合成路线的开发和优化过程,从最初的毫克级学术研究实验室版本发展到最终的最佳路线,该路线已在cGMP微型工厂中以千克规模实施。明确的路线始于对结构2,3,4,6-tetra- O的单独合成-苄基-1-脱氧野oji霉素和5-(金刚烷-1-基甲氧基)-戊醛。该醛是由1,5-戊二醇分五个步骤合成的,总产率为45%。通过连续的2,3,4,5-四-O-苄基-d半缩醛还原/ Swern氧化/双重还原胺化序列制备受保护的1-脱氧野oji霉素-吡喃葡萄糖的总产率为52%。两个构件的还原胺化产生了苄基保护的倒数第二个化合物,其结晶(+)DTTA盐被分离出来,产率为68%。倒数第二位的氢解和最终产物的甲磺酸盐结晶产生AMP-DNM,收率76%,纯度>