Synthesis of the novel mannosidase inhibitors (3R)- and (3S)-3-(hydroxymethyl)swainsonine
作者:Erik J. Hembre、William H. Pearson
DOI:10.1016/s0040-4020(97)00362-1
日期:1997.8
e., (3R)-3-(hydroxymethyl)swainsonine [(10), (3R)-HMS] and (3S)-3-(hydroxymethyl)swainsonine [(11), (3S)-HMS] is described. The synthesis of each analog begins with D-ribose, and involves a Claisen rearrangement, a Sharpless osmylation, and a reductive double-cyclization of either an azido mesylate bearing a lactone (i.e. 24 ⇒ 11) or an azido epoxide bearing a lactone (i.e. 27 ⇒ 10). Both (3R)-HMS
Swainsonine(9)是一种重要的甘露糖苷酶抑制剂,已在临床上作为抗癌药物进行了检查。制备在C(3)处带有羟甲基的swainsonine类似物,即(3 R)-3-(羟甲基)swainsonine [(10),(3 R)-HMS]和(3 S)-3-(描述了羟甲基)swainsonine [(11),(3 S)-HMS]。每个类似物的合成均以D-核糖开始,涉及Claisen重排,Sharpless渗透作用以及带有内酯的叠氮甲磺酸酯(即24⇒11 )或带有内酯的叠氮环氧化物(即, 27⇒10 )。(3 R)-HMS和(3发现S)-HMS是来自波豆的α-甘露糖苷酶的有效抑制剂。