| abstract |
Pyridine compounds represented by the general formula (I) or salts thereof: (I) wherein R1 is hydrogen or optionally substituted alkyl; R2 is optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted cycloalkyl, or the like; R3 is optionally substituted alkyl or the like; R4 is hydrogen, alkyl, haloalkyl, halogeno, -OR8, or -SR8; R5, R6 and R7 are each hydrogen, halogeno, or alkyl; R8 is optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted cycloalkyl; and X is CO, CS, or SO2. |