AIDS-209166 AIDS209166 Cyclopenta[c]pyrrole-1-carboxamide, N-[(1S)-1-[2-(cyclopropylamino)-1,2-dioxoethyl]butyl]-2-[(2S)-3,3-dimethyl-2-[[(2S)-3-methyl-1-oxo-2-[(pyrazinylcarbonyl)amino]butyl]amino]-1-oxobutyl]octahydro-, (1S)-