| abstract |
The present invention relates to the use of a compound, a salt or solvate thereof as C4 plant selective herbicide wherein said compound comprises a cyclic alkyl, aryl, heterocycloalkyl or heteroaryl group, and wherein said compound further comprises a) at least a functional group Z being —C(═Y z )R 1 , wherein Y z is selected from the group consisting of O, NH and S, preferably wherein Y z is O, and wherein R 1 is selected from the group consisting of H, OH and N(R 2 R 3 ), —O(R 2 ) and —S(R 2 ), wherein R 2 and R 3 , are independently of each other, selected from the group consisting of H, alkyl, cycolalkyl, aryl and heteroaryl and a functional group Q which is —C(═Y Q )R 4 , wherein Y Q is selected from the group consisting of O, NH and S, preferably wherein Y Q is O, and wherein R 4 is selected from the group consisting of H, OH and NR 4# R 5# , OR 4# , SR 4# wherein R 4# and R 5# , are independently of each other, selected from the group consisting of H, alkyl, cycloalkyl, aryl and heteroaryl, or b) at least one electron donating group selected from the group consisting of OH, —SH, —O—R p , S—R p —NR p R q and O—C(═Y p )R r , wherein R p and R q are, independently of each other, selected from the group consisting of H, alkyl, cycloalkyl and heteroaryl, and wherein R r is —OH, —NH 2 , —NH-Alkyl, —O-Alkyl or —NH-Alkyl, and wherein Y p is selected from the group consisting of —S—, —O—, —NH, said compound being capable of binding to the malate binding site comprised by a phosphoenolpyruvate carboxylase from a C4 plant, thereby inhibiting said phosphoenolpyruvate carboxylase, and wherein the cyclic alkyl, aryl, heterocycloalkyl or heteroaryl group inhibits binding to the malate binding site of a phosphoenolpyruvate carboxylase from a C3 plant. |