00575001_00600000/index.html 00575001_00600000/index.html.body 00575001_00600000/index.html.foot 00575001_00600000/index.html.head 00600001_00625000/600001 2,3'-Didehydro-3'-deoxy-3-methylthymidine triphosphate 3MeD4TTP AIDS-004334 AIDS004334