One-pot deoxygenative conversion of a ribonucleoside to enaminonucleosides involving 1,2-hydride shift rearrangement
作者:Kandasamy Sakthivel、Tanmaya Pathak
DOI:10.1016/0040-4020(96)00159-7
日期:1996.3
5′-O-Trityl-3′-O-mesyluridine on reaction with secondary ramines produced 1-(2,3-dideoxy- 2-N-dialkylamino-5-O-trityl- D-glycero-pent-2-enofuranosyl) uracil involving 1,2-hydride shift. The reaction proceeded through the formation of 2′-ketouridine in situ which was evident from the formation of both the α- and β- anomers of the enaminonucleosides.
5'-O-Trityl-3'-O-甲磺酰尿苷与仲胺反应生成1-(2,3-二脱氧-2-N-二烷基氨基-5-O-三苯甲基-D-甘油-戊-2-烯呋喃糖基)涉及1,2-氢化物移位的尿嘧啶。该反应通过原位形成2'-酮尿苷而进行,这从烯氨基核苷的α-和β-端基异构体的形成是明显的。