Patent ID: 7705038

Claim:
A method of killing, or suppressing the growth of, an ecto- or endoparasite, wherein: the method comprises contacting a susceptible ecto- or endoparasite with an effective amount of a 2-phenyl-3-(1H-pyrrol-2-yl)acrylonitrile compound of Formula 1: or a pharmaceutically acceptable salt thereof; wherein R 1 is selected from the group consisting of H, lower alkyl, and the following optionally substituted groups: alkoxyalkyl, alkoxyalkoxyalkyl, 1,1-(dialkoxy)alkyl, 1-alkoxy-1-alkylmethyl, aroyl, alkanoyl, arylalkyl, alkyloxyalkanoyl, alkoxycarbonyl, arylalkoxycarbonyl, arylsulfonyl, alkylarylsulfonyl, alkylalkenyl, N-alkylcarbamoyl, N,N-dialkylcarbamoyl, N-alkylthiocarbamoyl, and N,N-dialkylthiocarbamoyl; and R 2 -R 9 are independently selected from the group consisting of H, nitro, cyano, halo, and the following optionally substituted groups: alkyl, aryl, cycloalkyl, cycloalkenyl, alkylcycloalkyl, alkylcycloalkenyl, cycloalkylalkyl, arylalkyl, aryloxyalkyl, arylthioalkyl, haloalkyl, haloalkenyl, haloalkynyl, haloaryl, halocycloalkyl, alkoxy, alkenyloxy, alkynyloxy, aryloxy, cycloalkyloxy, cycloalkenyloxy, alkylcycloalkyloxy, alkylcycloalkenyloxy, cycloalkylalkyloxy, arylalkoxy, aryloxyalkoxy, arylthioalkyloxy, haloalkoxy, haloalkenyloxy, haloalkynyloxy, haloaryloxy, and halocycloalkoxy, except that R 5 and R 6 or R 6 and R 7 may alternatively together form, in combination with the atoms to which they are attached, an optionally substituted 5- to 7-member.