(S)-N-1-(3-((4-Acetylamino-3-fluoro-benzensulfonyl or 3-Acetylamino-4-fluoro-benzensulfonyl)-benzyl-amino)-(1S,2 syn)-1-benzyl-2-hydroxy-propyl)-2-((quinoline-2-carbonyl)-amino-succinamide AIDS-072728 AIDS072728