(RS)-9-[(3-Fluoro-2-(phosphonylmethoxy)propyl]adenine 135295-27-1 145986-72-7 (R) 145986-73-8 (S) AIDS-002731 AIDS002731 FPMPA Phosphonic acid, [[2-(6-amino-9H-purin-9-yl)-1-(fluoromethyl)ethoxy]methyl]-, (1)-