1-({1-[(R)-1-{(S)-2-[(S)-2-(3-Carboxy-propanoylamino)-3-methyl-pentanoylamino]-3-methyl-butanoyl}-4-(naphthalen-1-ylmethoxy)-pyrrolidin-2-yl]-methanoyl}-amino)-cyclopropanecarboxylic acid AIDS-155511 AIDS155511