Kumamoto H, Fukano M, Nakano T, Iwagami K, Takeyama C, Kohgo S, Imoto S, Amano M, Kuwata-Higashi N, Aoki M, Abe H, Mitsuya H, Fukuhara K, Haraguchi K.

Diastereoselective Synthesis of 6″-(Z)- and 6″-(E)-Fluoro Analogues of Anti-hepatitis B Virus Agent Entecavir and Its Evaluation of the Activity and Toxicity Profile of the Diastereomers.

J Org Chem. 2016 Apr 1;81(7):2827-36. doi: 10.1021/acs.joc.6b00105. Epub 2016 Mar 24. PMID: 27009432.

https://pubmed.ncbi.nlm.nih.gov/27009432/