Patent ID: 7410999

Claim:
A method of treating bovine viral diarrhea virus (BVDV) infection in a subject in need of such treatment, comprising administering to the subject a compound selected from the group consisting of Formula V and Formula VI: wherein: X 1 is selected from the group consisting of O, S and NR 9 , wherein R 9 is H or alkyl; X 2 is CH or N; A is selected from the group consisting of H, alkyl, R 1 , R 2 , R 3 , and R 4 are each independently selected from the group consisting of H, alkyl, alkoxy, halide, alkylhalide, amidine, nitro and amino groups; R 6 is H, alkyl or aryl; and R 7 and R 8 are each independently selected from the group consisting of H and alkyl; or a pharmaceutically acceptable salt thereof, in an amount sufficient to treat the bovine viral diarrhea virus (BVDV) infection.