(-)-9-[(1S,4R)-2,3-Dideoxy-2,3-didehydro-2-fluoro-4-thio-beta-L-ribofuranoysl]adenine AIDS-163230 AIDS163230 [5-(6-Amino-purin-9-yl)-4-fluoro-2,5-dihydro-thiophen-2-yl]-methanol