Synthetic approaches to a chiral 4-amino-3-hydroxy piperidine with pharmaceutical relevance
作者:Adrian Ortiz、Ian S. Young、James R. Sawyer、Yi Hsiao、Amarjit Singh、Masano Sugiyama、R. Michael Corbett、Melissa Chau、Zhongping Shi、David A. Conlon
DOI:10.1039/c2ob25411e
日期:——
strategies were evaluated towards the preparation of (−)-(3R,4R)-1-benzyl-4-(benzylamino)piperidin-3-ol (1), which was constructed with control over the relative and absolute stereochemistry of the 4,3-amino alcohol moiety. The first strategy employed a novel RhI catalyzed asymmetric hydrogenation, while two other strategies exploited the existing stereochemistry in 2-deoxy-D-ribose, and the fourth explored
评估了四种综合策略来制备甲壳素。 (-)-(3 R,4 R)-1-苄基-4-(苄基氨基)哌啶-3-醇(1),其是通过控制4,3-氨基醇部分的相对和绝对立体化学而构建的。第一种策略采用了新型的Rh I催化的不对称氢化反应,而另外两种策略则采用了现有的立体化学方法。2-脱氧-D-核糖,和第四次探索生物催化和古典拆分技术作为一种手段赋予对映体中间体途径到目标结构(-)- 1对映体富集。