| Popis: |
3-Deoxy-dl-prumycin (1) was synthesized from 2-furanmethanol (2-furfuryl alcohol, 2) in eleven steps in 15% total yield. Michael addition of azide anion to 2,3-dideoxy-dl-pent-2-enopyranos-4-ulose (3) and reduction in situ of the adduct afforded the key intermediates 5 and 6. Introduction of a second azido group with inversion of configuration at C-4 afforded intermediates 14 and 17, both of which had a threo configuration in regard to C-2 and C-4. Coupling with d-alanine and total deprotection yielded the title compound 1. © 1991. |
