Deoxy-L-ribose,an important intermediate of L-deoxynucleosides,was obtained by five steps reaction with L-arabinose as the starting material.

• 以L-阿拉伯糖为起始物,通过羟基保护、还原、脱保护等5步反应得到一种重要的L-脱氧核苷类药物中间体2-脱氧-L-核糖。