Design, synthesis and binding affinity of 3′-fluoro analogues of Cl-IB-MECA as adenosine A3 receptor ligands

Autor: Seung Jin Lee, Moo Hong Lim, Joong Hyup Kim, Neli Melman, Moon Woo Chun, Hea Ok Kim, Kenneth A. Jacobson, Lak Shin Jeong, Zhan Guo Gao, Hyung Ryong Moon
Rok vydání: 2003
Předmět:
Zdroj: Bioorganic & Medicinal Chemistry Letters. 13:817-820
ISSN: 0960-894X
DOI: 10.1016/s0960-894x(03)00027-1
Popis: Several 3′-fluoro analogues, 1a , 1b , and 1c of selective and potent adenosine A 3 receptor agonist, Cl-IB-MECA were synthesized from d -xylose via highly regioselective opening of lyxo -epoxides, 8a and 8b with fluoride anion. Compared to the high binding affinity of Cl-IB-MECA to the A 3 adenosine receptor, the corresponding 3′-fluoro derivative showed remarkably decreased binding affinity, indicating that 3′-hydroxyl group acts as hydrogen bonding acceptor, not hydrogen bonding donor like fluorine atom in binding to the A 3 adenosine receptor.
Databáze: OpenAIRE