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
摘要用高浓度乙酸将3-O-乙酰基-5-O-苯甲酰基-1,2-O-异亚丙基-3-C-甲基-α-d-核呋喃糖进行乙酰化反应可得到1,2,3-tri- O-乙酰基-5-O-苯甲酰基-3-C-甲基-d-呋喃糖,用于制备3-C-甲基-α-d-呋喃糖基核苷。还从1,2,3-三-O-乙酰基-5-O-苯甲酰基-3-C-甲基-d-核呋喃糖开始合成3'-C-甲基核糖核苷。