1-[(5-Methanesulfonamidoindol-2-yl)carbonyl]-4-[N-ethyl-N-[3-[(1,1-dimethylethyl)amino]-2-pyridinyl]amino]piperidine 177577-60-5 AIDS-032910 AIDS032910 Alkylamino-piperidine analog PNU-104489 U 104489 U-104489