Epimerization during the acetolysis of 3-O-acetyl-5-O-benzoyl-1,2-O-isopropylidene-3-C-methyl-α-d-ribofuranose. Synthesis of 3′-C-methylnucleosides with the β-d-ribo- and α-d-arabino configurations
作者:Leon N. Beigelman、Galina V. Gurskaya、Elena N. Tsapkina、Sergey N. Mikhailov
DOI:10.1016/0008-6215(88)84024-2
日期:1988.10
Abstract Acetolysis of 3-O-acetyl-5-O-benzoyl-1,2-O-isopropylidene-3-C-methyl-α- d -ribofuranose with a high concentration of acetic acid yielded 1,2,3-tri-O-acetyl-5-O-benzoyl-3-C-methyl- d -arabinofuranose, which was used for the preparation of 3-C-methyl-α- d -arabinofuranosyl nucleosides. 3′-C-Methylribonucleosides were also synthesized starting from 1,2,3-tri-O-acetyl-5-O-benzoyl-3-C-methyl- d