Abstract
A convenient procedure for coupling 1,2,3,5‐tetra‐O‐acetyl‐β‐D‐ribofuranose and 4‐nitroimidazole was developed to obtain β‐anomer as the major product. A novel category of nucleoside analogues with the introduction of natural L‐amino acids to the base moiety were designed and synthesized to develop selective and effective antiviral agents.
Acknowledgment
We thank the National Natural Science Foundation of China (No. 20172049) and our university for financial support.
Notes
†The ratio was obtained by chromatography and HPLC, which used a C18 reverse‐phase analytical column and an MeCN/H2O solvent system (MeCN/H2O=2:7) as eluent. The product β appeared first at 12.967 min in the HPLC, and the compound α emerged at 17.938 min.