Synthesis of 5-epi-Isofagomine via Asymmetric Chelate–Enolate Claisen Rearrangement
作者:Christiane Schneider、Uli Kazmaier
DOI:10.1002/(sici)1099-0690(199806)1998:6<1155::aid-ejoc1155>3.0.co;2-g
日期:1998.6
Polyhydroxylated piperidines are an interesting class of glycosidase inhibitors. Chelate enolate Claisen rearrangement of N-protected chiral amino acid esters gives rise to γ,δ-unsaturated amino acids, which can be converted to this type of alkaloids. The potential glycosidase inhibitor 5-epi-isofagomine (5) was synthesized by this approach in a highly stereoselective fashion.
多羟基哌啶是一类有趣的糖苷酶抑制剂。N-保护的手性氨基酸酯的螯合烯醇克莱森重排产生γ,δ-不饱和氨基酸,其可以转化为这种类型的生物碱。潜在的糖苷酶抑制剂 5-epi-isofagomine (5) 是通过这种方法以高度立体选择性的方式合成的。