abstract |
The present invention relates to an antiviral composition for feline coronavirus, and more particularly, the compound of formula 1 below, a stereoisomer or pharmaceutically acceptable salt thereof, exhibits excellent antiviral effect against feline coronavirus. : [Formula 1] In Formula 1, R 0 is , , and -OH; A is a 4, 5, 6, or 7 carbocyclyl or heterocyclyl ring fused to N, which is unsubstituted or substituted with one or more C1 to C3 alkyl or halo groups; R 1 and R 2 are each independently —H, —OH, C1 to C3 alkyl —CH 2 CH 2 SO 2 NH 2 , —C(CH 3 ) 3 and selected from the group consisting of |