Straightforward Synthesis of Pyrrolidine Glycosidase Inhibitors <i>via</i> Asymmetric Hetero-Diels-Alder Reaction
作者:Albert Defoin、Thierry Sifferlen、Jacques Streith
DOI:10.1055/s-1997-5794
日期:1997.11
Base-catalysed rearrangement of the oxazine-carboxylate 8, obtained from pentadienoic acid 4 by asymmetric hetero-Diels-Alder reaction followed by simple chemical transformations, led to the protected trihydroxy-proline 9. Using various reduction conditions, the potent glycosidase inhibitors 1,4-dideoxy-1,4-imino-D-lyxitol D-1 and 1,4-dideoxy-1,4-imino-L-ribitol L-2 were obtained.
通过不对称杂狄尔斯-阿尔德反应从戊二烯酸 4 获得,然后进行简单的化学转化,恶嗪羧酸酯 8 进行碱催化重排,得到受保护的三羟基脯氨酸 9。使用各种还原条件,有效的糖苷酶抑制剂 1,获得4-二脱氧-1,4-亚氨基-D-来木糖醇D-1和1,4-二脱氧-1,4-亚氨基-L-核糖醇L-2。