(2R)-1-[(1-{(2S)-2-[(Tert-butoxy)carbonylamino]-3,3-dimethylbutanoyl}(2S,4R)-4-(2-ethylthio-7-methoxy(4-quinolyloxy))pyrrolidin-2-yl)carbonylamino]-2-vinylcyclopropanecarboxylic acid AIDS-162193 AIDS162193