POLYCYCLIC AGENTS FOR THE TREATMENT OF RESPIRATORY SYNCYTIAL VIRUS INFECTIONS

摘要

Compounds of formula I
salts, and pharmaceutically acceptable derivatives thereof, wherein: A, together with the atoms to which it is attached, represents an optionally substituted phenyl ring; B-C is an optionally substituted link of the formula -CH 2 -(CH 2 ) z -, where z is 1-4; X and Y are independently selected from O, S and NR 6 , where R 6 is independently selected from hydrogen, C 1-6 alkyl, hydroxy and C 1-6 alkoxy; and R 1 and R 2 ;are as defined herein; are described. The compounds are useful as antiviral agents in particular the treatment of infections involving viruses of the Pneumovirinae subfamily.