(S)-2-{(2S,3S)-2-[(3S,4S)-4-((S)-2-{(S)-2-[(S)-2-((S)-2-Amino-3-methyl-butanoylamino)-3-hydroxypropanoylamino]-4-carbamoylbutanoylamino}-3-carbamoylpropanoylamino)-3-hydroxy-6-methyl-heptanoylamino]-3-methyl-pentanoylamino}-3-methyl-butyric acid 124020-60-6 AIDS-000593 AIDS000593 H-Val-Ser-Gln-Asn-Sta-Ile-Val-OH U-85549E