Expeditious Synthesis of a Common Intermediate of l-1-Deoxyallonojirimycin and l-1-Deoxymannojirimycin
摘要:
The expeditious synthesis of a common intermediate of L-1-deoxyallorlojirimycin (L-allo-DNJ) and L-1-deoxymannojirimycin (L-manno-DNJ) is reported. This intermediate is obtained in highly diastereo- and enantioselectivity with 38.4% overall yield in six steps involving the unprecedented ring-closing metathesis of a tert-butylsulfinyl allylamine as the key step.