Patent ID: 7452915

Claim:
A method of treating or preventing a disease caused by infection with a parasite other than an organism of the genus Plasmodium , comprising administering to a host in need thereof an effective amount of a compound of the general formula I or a salt thereof in which R 1 represents a hydrogen atom or a C 1-6 alkyl group and R 2 represents a C 1-6 alkyl, C 3-8 cycloalkyl, C 6-10 aryl or C 7-16 aralkyl group, or R 1 and R 2 together with the interjacent nitrogen atom represent a 5- to 10-membered heterocyclic group or an amino group derived from a C 1-6 alkyl ester of an amino acid, each group being optionally substituted by one or more substituents selected from the group consisting of halogen atoms, C 1-4 alkyl, C 1-4 haloalkyl, C 1-6 alkoxycarbonyl, phenyl, halophenyl, C 1-4 alkylphenyl, C 1-4 haloalkylphenyl, C 1-4 alkoxyphenyl, benzyl, pyridyl and pyrimidinyl groups.