AIDS-167798 AIDS167798 Cysteine, N-[(2S)-2-[[(2S)-2-[[(2S)-2-(acetylamino)-3-carboxy-1-oxopropyl]amino]-4-carboxy-1-oxobutyl]amino]-2-cyclohexyl-1-oxoethyl]-L-valyl-(4R)-4-(phenylmethoxy)-L-prolyl-