| 主权项 |
1. An agricultural plant-protecting agent comprising of a compound selected from dipeptide derivatives represented by the following chemical formula 1 or an agro-pharmaceutically acceptable salt thereof as an active ingredient: In the above Chemical Formula 1, R1, R2, and R5 are the same or different from each other, and represent a hydrogen atom, a linear or branched C1-C18 alkyl carbonyl group, a linear or branched C1-C18 alkoxy carbonyl group, R3, R4, R6, and R7 are the same or different from each other, and represent a hydrogen atom, or a linear or branched C1-C18 alkyl group substituted or unsubstituted with the group selected from hydroxy, mercapto, amino, guanidino, N,N-bis(benzyloxycarbonyl)guanidino, carbamoyl, carboxylic acid, linear or branched C1-C18 alkoxy carbonyl, linear or branched C1-C18 alkenyl oxycarbonyl,linear or branched C1-C18 alkyl thio, trityl thio, acetyl amino, phenyl, hydroxyphenyl, imidazole, and indolyl;
or any one of the R3 and R4 may bind to R2 to form a nitrogen-containing 5-membered to 7-membered ring or any one of the R6 and R7 may bind to R5 to form a nitrogen-containing 5-membered to 7-membered ring. R8 represents hydroxy; a linear or branched C1-C18 alkoxy group; a linear or branched C1-C18 alkyl amino group; Ra represents a linear or branched C1-C18 alkyl group; n represents an integer of 0 to 5, the number of a substituent, Ra; and m represents an integer of 0 to 6.] |
