The discovery of 1,2,3,9b-tetrahydro-5H-imidazo[2,1-a]isoindol-5-ones as a new class of respiratory syncytial virus (RSV) fusion inhibitors. Part 1
作者:Silas Bond、Alistair G. Draffan、Jennifer E. Fenner、John Lambert、Chin Yu Lim、Bo Lin、Angela Luttick、Jeffrey P. Mitchell、Craig J. Morton、Roland H. Nearn、Vanessa Sanford、Pauline C. Stanislawski、Simon P. Tucker
DOI:10.1016/j.bmcl.2014.11.018
日期:2015.2
Respiratory syncytial virus (RSV) is a major cause of respiratory tract infections in infants, young children and adults. Compound 1a (9b-(4-chlorophenyl)-1-(4-fluorobenzoyl)-1,2,3,9b-tetrahydro-5H-imidazo[ 2,1-a]isoindol-5-one) was identified as an inhibitor of A and B strains of RSV targeting the fusion glycoprotein. SAR was developed by systematic exploration of the phenyl (R-1) and benzoyl (R-2) groups. Furthermore, introduction of a nitrogen at the 8-position of the tricyclic core resulted in active analogues with improved properties (aqueous solubility, protein binding and logD) and excellent rat pharmacokinetics (e. g., rat oral bioavailability of 89% for compound 17). (C) 2014 Elsevier Ltd. All rights reserved.