Heinrich-heine-universitat Dusseldorf

Judith Katharina Paulus

Peter Westhoff

Georg Groth

Daniel Schlieper

The present invention relates to the use of a compound, a salt or solvate thereof as C4 plant selective herbicide wherein said compound has a structure according to formula (I) wherein A is a cyclic alkyl, aryl, heterocycloalkyl, or heteroaryl group, and B is a cyclic alkyl, aryl, heterocycloalkyl, or heteroaryl group, and wherein R, R, R, Rand Rare, independently of each other H or an alkyl group, and wherein integer i is 0 or 1, preferably 1, and the bond (a) is a single or double bond, and wherein in case (a) is a double bond, n is 0 and X is O or S, and wherein in case (a) is a single bond n is 1, and X is H or an alkyl group, and wherein the bond (b) is a single or double bond, and wherein in case (b) is a double bond, m and p are 0, and wherein in case (b) is a single bond m and p are both 1, and/or according to formula (II) including tautomeric structures thereof, wherein Rand Rare independently of each other selected from the group consisting of H, OH, carboxylic acid, ester, alkyl, alkoxy and halogen, wherein Yis selected from the group consisting of (S(&#x2550;O)2), S(&#x2550;O)) and (C(&#x2550;O)), and wherein Yis O, and wherein r is 0 or 1 and wherein in case r is 0, q and s are 1, and wherein in case r is 1, q and s are 0, and wherein R, R, R, R, R, R, R, R, R, R, R, R, Rand Rare independently of each other selected from the group consisting of H, OH, &#x2014;SO3H, carboxylic acid, ester, alkyl, alkoxy and halogen, 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. 

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Düsseldorf, Germany

Judith Katharina Paulus