作者:Timothy J. Donohoe、Peter D. Johnson、Richard J. Pye、Martine Keenan
DOI:10.1021/ol0473750
日期:2005.3.1
the short and efficient synthesis of the aminocyclitol core of hygromycin A. In addition to allowing the selective introduction of the heteroatoms N and O, the use of osmium (via an osmate ester) as a protecting group for a 1,2-glycol is also reported. This tactic allowed efficient differentiation of otherwise equivalent hydroxyl groups and allowed us to complete the synthesis in short order (14 steps)
[反应:见正文]使用(VIII)氧化剂进行立体选择性氨基羟基化和二羟基化,可以短而有效地合成潮霉素A的氨基环醇核心。除选择性引入杂原子N和O外,还可以使用(通过还报道了作为1,2-二醇保护基的osmate酯)。该策略可以有效区分其他等效的羟基,并允许我们在短时间内(14个步骤)完成合成,并具有出色的总收率(12%)。