Claim 1: Use of a Compound, such as a Salt or solvate Selective herbicide Plant wherein Said Compound comprises a group C4 alkyl, aryl or heteroaryl, heterocicloalquilo cyclical, and where this Compound also comprises (a) at least one Functional Group is Z - C (= YZ) r u00b9, Gift Of YZ is selected from the group consisting, NH and S, where YZ is Preferred, orAnd where r u00b9 is selected from the group consisting of H, o and N (r u00b2r u00b3) - or (R u00b2) and S (- R u00b2), where R u00b2 and r u00b3 independently, are selected among the group consisting of H, alkyl, cycloalkyl, aryl and heteroaryl and q is a functional Group - C (= YQ) r u2074 yq, where you select the gru PO that is, NH and S, where YQ is Preferred, orAnd where r u2074 is selected from the group consisting of H, o and nr u2074 # r u2075 #, or u2074 #, sr u2074 # where r u2074 # and r u2075 # independently, are selected among the group consisting of H, alkyl, cycloalkyl, aryl and heteroaryl, or (b) at least one electron donor Group selected Group. And it is Oh, - SH, - or - r u1d56 r u1d56 -, - S -, and nr u1d56rq r u02b3, OC (= YP)Where r u1d56 and RQ are selected independently from the group consisting of H, alkyl, cycloalkyl and heteroaryl, and where r u02b3 is nh u2082 - Oh -, - NH -, alkyl - or - NH - alkyl or alkyl, and where p is selected from the group consisting of S -, - O -, - NH, the Compound is able to join the Binding Site of Malate composed of a C4 Plant Phosphoenolpyruvate carboxylase,This Inhibits the Phosphoenolpyruvate carboxylase, and where the alkyl group, an aryl, heteroaryl or cyclical Union heterocicloalquilo Inhibits The Binding Site of Malate of Phosphoenolpyruvate carboxylase of C3 Plant.Claim 2: Use according to claim 1, wherein the compound has a structure according to formula (1) where the group is alkyl, aryl or heteroaryl, heterocicloalquilo, where a is a Cyclical and at least bicyclic heteroaryl aryl or alkyl group, with preference or No group or heteroalquilo bic
