| abstract |
Compounds of the following formula, (wherein, R1 and R2 maybe the same or different, each represents a C1-6 alkyl group, an aryl group, a heteroaryl group, an aralkyl group, or together to form a C3-10 cycloalkyl ring; R3 and R4 maybe the same or different, each represents a hydrogen atom, a halogen atom, a C1-6 alkyl group, or together to form a C3-10 cycloalkyl ring; R5 represents a hydrogen atom, a C1-6 alkyl group, or an acyl group; X represents a halogen atom, a C1-6 alkyl group, a C2-6 alkenyl group, a C2-6 alkynyl group, an aryl group, a heteroaryl group, a Cl-6 alkoxyl group, an amino group, an acyl group, a cyano group, or a N-hydroxyalkaneimido group; Y represents a substituting group selected from a group consisting a halogen atom, a C1-6 alkyl group, a Cl-6 alkoxyl group, and a hydroxy group; n represents an integer of 0-4; m represents an integer of 0-6), or the pharmaceutically acceptable salts thereof, which have the excellent germicidal activity against various plant diseases and useful as the active components of the agricultural chemicals, which can control the blast of rice plant with low dose. |