| abstract |
An imidazole derivative represented by one of formulas (1), wherein R 1 , R 2 represents hydrogen atom, lower alkyl, aryl, aralkyl group, or R 1 and R 2 cooperate to represent alkylene, alkylidene, arylalkylidene group, R 3 representing hydrogen atom, lower alkyl or alkanoyl group, or aralkyl or arylcarbonyl group, wherein at least one of A and B represents a group represented by formula (2), wherein m represents an integer 1-4, R 4 representing nitrogen-containing aromatic ring that may be substituted by lower alkyl, alkoxy or alkanoyl group, or phenyl group represented by formula (3), R 5 , R 6 representing hydrogen atom, lower alkyl or alkenyl group, or lower alkanoyl or arylcarbonyl group which may be substituted by a halogen atom, R 7 representing hydrogen or halogen atom, hydroxyl or nitro group, or lower alkyl or alkoxy group, wherein the other of A and B represents oxygen or sulfur atom, hydroxyl, mercapto, alkylthio, alkenylthio or aralkylthio group, or group represented by the formula (2),n n n (2) -S-(CH 2 )m-R 4 |