GASPARINI, FABRIZIO;VOGEL, PIERRE, HELV. CHIM. ACTA, 72,(1989) N, C. 271-277
作者:GASPARINI, FABRIZIO、VOGEL, PIERRE
DOI:——
日期:——
Highly Stereoselective Total Syntheses of 2,5-Anhydro-4-deoxy-D-ribo-hexonic Acid and of (1S)-1-C-(6-amino-7H-purin-8-yl)-1,4-anhydro-3-deoxy-D-erythro-pentitol (= cordycepin C)
作者:Fabrizio Gasparini、Pierre Vogel
DOI:10.1002/hlca.19890720211
日期:1989.3.15
Highly regio- and stereoselective monohydroxylation of the CC bond of (+)-7-oxabicyclo[2.2.1]hept-5-en-2-one (8) was achieved via LiAlH4 reduction of the corresponding 5,6-exo-epoxy dimethyl acetal 9. The reaction gave exclusively (–)-(1R, 2R, 4S)-6,6-dimethoxy-7-oxabicyclo[2.2.1]heptan-2-exo-ol (10) which was transformed into 2,5-anhydro-3-O-benzyl-4-deoxy-D-ribo-hexonic acid (15) and 2,5-anhydro