AIDS-216291 AIDS216291 D-Norvaline, N-[(2S)-2-[[(2R)-2-[[(2S)-2-(acetylamino)-3-carboxy-1-oxopropyl]amino]-3-carboxy-1-oxopropyl]oxy]-3-methyl-1-oxopentyl]-L-valyl-(4R)-4-(phenylmethoxy)-D-prolyl-