Disclosed are compounds of Formula I and N-oxides or salts thereof, wherein R.sup.1 is C.sub.1-C.sub.4alkyl or C.sub.3-C.sub.6cycloalkyl; R.sup.2 is H, Cl, Br or I; R.sup.3 is Cl or OR.sup.4; R.sup.4 is H or C.sub.1-C.sub.4 alkyl; R.sup.5 is H, F, Cl or CH.sub.3; and R.sup.6 is H or Cl. Also disclosed is a composition containing a compound of Formula I, and methods for controlling undesired vegetation comprising contacting the undesired vegetation or its environment with an effective amount of a compound of Formula I or a composition thereof. Also disclosed are methods for preparing a compound of Formula I.

##STR00001##

Disclosed are compounds of Formula I and N-oxides or salts thereof, wherein R.sup.1 is C.sub.1-C.sub.4alkyl or C.sub.3-C.sub.6cycloalkyl; R.sup.2 is H, Cl, Br or I; R.sup.3 is Cl or OR.sup.4; R.sup.4 is H or C.sub.1-C.sub.4 alkyl; R.sup.5 is H, F, Cl or CH.sub.3; and R.sup.6 is H or Cl. Also disclosed is a composition containing a compound of Formula I, and methods for controlling undesired vegetation comprising contacting the undesired vegetation or its environment with an effective amount of a compound of Formula I or a composition thereof. Also disclosed are methods for preparing a compound of Formula I.

##STR00001##

A heterocyclic compound is represented by formula (I): ##STR00001##
in which R.sup.2 represents a C1-C6 alkyl group optionally having one or more halogen atoms, n is 0, R.sup.3 represents a C1-C6 chain hydrocarbon group optionally having one or more substituents selected from Group B, q is 0, Het represents a group represented by the formulae Het 1 or Het 2, A.sup.1 represents a nitrogen atom, and Q.sup.2 represents an oxygen atom. The compound has excellent efficacy for controlling harmful arthropods. A composition is provided which contains the compound of formula (I) and one or more additional ingredients.

The present invention relates to the use of herbicidal substituted phenyl-pyridazinediones and substituted phenyl-pyridazinone derivatives of formula (I), in combination with herbicidal pyrrolidinone derivatives of the formula (II) to control undesirable plant growth, in controlling weeds, including broad-leaved and/or narrow-leaved, monocotyledonous and/or dicotyledonous weeds, in crops of useful plants.

The present invention relates to the use of herbicidal substituted phenyl-pyridazinediones and substituted phenyl-pyridazinone derivatives of formula (I), in combination with herbicidal pyrrolidinone derivatives of the formula (II) to control undesirable plant growth, in controlling weeds, including broad-leaved and/or narrow-leaved, monocotyledonous and/or dicotyledonous weeds, in crops of useful plants.

The present invention provides compounds of formula (I) and pharmaceutically acceptable salts thereof, wherein R.sup.1 and R.sup.2 are as defined in the specification, processes for their preparation, pharmaceutical compositions containing them and their use in therapy.

##STR00001##

The present invention provides compounds of formula (I) and pharmaceutically acceptable salts thereof, wherein R.sup.1 and R.sup.2 are as defined in the specification, processes for their preparation, pharmaceutical compositions containing them and their use in therapy.

##STR00001##

Provided herein are dUTPase inhibitors, compositions comprising such compounds and methods of using such compounds and compositions.

Provided herein are dUTPase inhibitors, compositions comprising such compounds and methods of using such compounds and compositions.

Disclosed are compounds of Formula 1, including all stereoisomers, N-oxides, and salts thereof, Formula (1) wherein W, R.sup.1, R.sup.2, R.sup.3, n, R.sup.4, R.sup.5, R.sup.6, L and G are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula 1 and methods for controlling undesired vegetation comprising contacting the undesired vegetation or its environment with an effective amount of a compound or a composition of the invention. ##STR00001##