1H-Isoindole-1,3(2H)-dione, 5-(dimethylamino)-, {2-[[(1-methylethyl)sulfonyl)oxy]-} 5-(Dimethylamino)-2-((isopropylsulfonyl)oxy)-1H-isoindole-1,3(2H)-dione AIDS-133939 AIDS133939 NSC630956