摘要从相应的差向异构体2-(d-阿拉伯糖和d-核糖-四糖醇-1-基)苯并咪唑类似物1制备了2-(α-和β-d-赤呋喃呋喃糖基)苯并咪唑C-核苷类似物2和3。和4。类似地,从前体2-(1-阿拉伯糖-四糖醇-1-基)苯并咪唑12获得了2-(β-1-异呋喃呋喃糖基)苯并咪唑13。C-核苷类似物2、3和13的结构和端基异构构型通过酰化,1 H和13 C NMR光谱法和质谱法确定。
Circular dichroism and anomeric configuration assignment of benzimidazole C-nucleoside analogs
作者:Mohammed A.E. Sallam、Omnia G. Abdel Hamid、Verena Gossen、Gerhard Raabe、Salah Aboulela
DOI:10.1016/j.carres.2012.07.008
日期:2012.11
The circulardichroism of a series of acyclic polyhydroxyalkyl benzimidazole C-nucleoside analogs was correlated with the stereochemistry of the chiral carbon atom α to the benzimidazole base moiety. This correlation was used for the assignment of the anomeric configuration of 2-(β-L-erythrofuranosyl) benzimidazole C-nucleoside analogs without a need to have the other anomer on hand, in a similar manner