Author/Authors :
Kuo-Long Yu، نويسنده , , Xiangdong Alan Wang، نويسنده , , Rita L. Civiello، نويسنده , , Ashok K. Trehan، نويسنده , , Bradley C. Pearce، نويسنده , , Zhiwei Yin، نويسنده , , Keith D. Combrink، نويسنده , , H. Belgin Gulgeze، نويسنده , , Yi Zhang، نويسنده , , Kathleen F. Kadow، نويسنده , , Christopher W. Cianci، نويسنده , , Junius Clarke، نويسنده , , Eugene V. Genovesi، نويسنده , , Ivette Medina، نويسنده , , Lucinda Lamb، نويسنده , , Philip R. Wyde، نويسنده , , Mark Krystal، نويسنده , , Nicholas A. Meanwell، نويسنده ,
Abstract :
The introduction of acidic and basic functionality into the side chains of respiratory syncytial virus (RSV) fusion inhibitors was examined in an effort to identify compounds suitable for evaluation in vivo in the cotton rat model of RSV infection following administration as a small particle aerosol. The acidic compounds 2r, 2u, 2v, 2w, 2z, and 2aj demonstrated potent antiviral activity in cell culture and exhibited efficacy in the cotton rat comparable to ribavirin. In a BALB/c mouse model, the oxadiazolone 2aj reduced virus titers following subcutaneous dosing, whilst the ester 2az and amide 2aab exhibited efficacy following oral administration. These results established the potential of this class of RSV fusion inhibitors to interfere with infection in vivo following topical or systemic administration.
