A compound of formula (Ic)

##STR00001## wherein X.sup.2 represents a —CO—NR.sub.k— group, wherein R.sub.k represents a hydrogen atom or a methyl group, a —NH—CO—NH— group, a —OCH.sub.2— group, a —CH(OH)— group, a —NH—CO— group, a —O— group, a —O—(CH.sub.2).sub.s—O—, a —CO— group, a —SO.sub.2— group, a divalent 5-membered heteroaromatic ring comprising 1, 2, 3 or 4 heteroatoms, —a NH—SO.sub.2— or a —SO.sub.2—NH— group; Y.sup.2 represents a hydrogen atom, a halogen atom, a hydroxyl group, a (C.sub.1-C.sub.4)alkoxy group, a

##STR00002##

a

##STR00003##

group, a

##STR00004##

group, a morpholinyl group, optionally substituted by a (C.sub.1-C.sub.4)alkyl group, a piperazinyl group, a piperidinyl group, or a —CR.sup.1R.sup.2R.sup.3 group, or any of its pharmaceutically acceptable salt.

A compound: ##STR00001##
wherein X.sup.1 represents an alkenylene group, a —NH—CO— group, a —CO—NH— group, Y.sup.1 represents an aryl group selected from pyridyl, pyrazinyl or pyrimidinyl, X.sup.2 represents —O—, —CO—NH—, —NH—CO—NH—, —OCH.sub.2—, —NH—CO—, a divalent 5-membered heteroaromatic ring comprising 1 to 4 heteroatoms or —SO.sub.2—NH—, and Y.sup.2 represents a hydrogen atom, a hydroxyl group, a morpholinyl group, a piperidinyl group, optionally substituted by a (C.sub.1-C.sub.4)alkyl group, a piperazinyl group, optionally substituted by a (C.sub.1-C.sub.4)alkyl group, or —CR.sup.1R.sup.2R.sup.3 or alternatively X.sup.2—Y.sup.2 represents —CONR.sub.cR.sub.d, wherein R.sub.c and R.sub.d form, together with the nitrogen atom a heterocyclic ring, optionally substituted by one or two (C.sub.1-C.sub.4)alkyl group, by a cyclopentyl group thus forming a spirocyclopentyl, or by a trifluoromethyl group, or any of its pharmaceutically acceptable salt, for use in the treatment and/or prevention of a RNA virus infection caused by a RNA virus belonging to group IV or V of the Baltimore classification.

The present invention relates to a process for manufacture of 2-nitroimino heterocyclic compounds and intermediates thereof. More particularly, the present invention relates to a convenient manufacturing process for preparation of 2-nitroimino imidazolidine compounds.

The present invention relates to a process for manufacture of 2-nitroimino heterocyclic compounds and intermediates thereof. More particularly, the present invention relates to a convenient manufacturing process for preparation of 2-nitroimino imidazolidine compounds.

A compound:

##STR00001##

wherein X.sup.1 represents an alkenylene group, a —NH—CO— group, a —CO—NH— group, Y.sup.1 represents an aryl group selected from pyridyl, pyrazinyl or pyrimidinyl, X.sup.2 represents —O—, —CO—NH—, —NH—CO—NH—, —OCH.sub.2—, —NH—CO—, a divalent 5-membered heteroaromatic ring comprising 1 to 4 heteroatoms or —SO.sub.2—NH—, and Y.sup.2 represents a hydrogen atom, a hydroxyl group, a morpholinyl group, a piperidinyl group, optionally substituted by a (C.sub.1-C.sub.4)alkyl group, a piperazinyl group, optionally substituted by a (C.sub.1-C.sub.4)alkyl group, or —CR.sup.1R.sup.2R.sup.3 or alternatively X.sup.2—Y.sup.2 represents —CONR.sub.cR.sub.d, wherein R.sub.c and R.sub.d form, together with the nitrogen atom a heterocyclic ring, optionally substituted by one or two (C.sub.1-C.sub.4)alkyl group, by a cyclopentyl group thus forming a spirocyclopentyl, or by a trifluoromethyl group, or any of its pharmaceutically acceptable salt, for use in the treatment and/or prevention of a RNA virus infection caused by a RNA virus belonging to group IV or V of the Baltimore classification.

A compound of formula (Ie):

##STR00001##

wherein Y.sup.1 represents an aryl group, X.sup.2 represents a —O— group, a —NH— group, a —S— group, a —CO—NH— group, a —NH—CO—NH— group, a —NH—CO— group, a —CH(OH)— group, a —CH(COOH)NH— group, a —CH(COOCH.sub.3)NH— group, a —C(OH)(CH.sub.2OH)—, a

##STR00002##

group, a divalent 5-membered heteroaromatic ring comprising 1, 2, 3 or heteroatoms, a —SO.sub.2— group, or a —SO.sub.2—NH— group, Y.sup.2 represents a hydrogen atom, a hydroxyl group, a (C.sub.1-C.sub.4)alkoxy group, a —CHC(OH).sub.2, a COOR.sub.f, wherein R.sub.f represents a hydrogen atom or a (C.sub.1-C.sub.4)alkyl group, a morpholinyl group, a dihydropyranyl group, a

##STR00003##

group, a

##STR00004##

group, a —PO(OR.sub.f)(OR′.sub.f) group, wherein R.sub.f and R′.sub.f independently represents a hydrogen atom or a (C.sub.1-C.sub.4)alkyl group, an oxetanyl group, a —Si(CH.sub.3).sub.3 group, a —NHCOO—(C.sub.1-C.sub.4)alkyl group, or a —CR.sup.1R.sup.2R.sup.3 group, or any of its pharmaceutically acceptable salt and pharmaceutical compositions containing them and to synthesis process for manufacturing them.

The present invention relates to a process for manufacture of 2-nitroimino heterocyclic compounds and intermediates thereof. More particularly, the present invention relates to a convenient manufacturing process for preparation of 2-nitroimino imidazolidine compounds.

The present invention relates to a process for manufacture of 2-nitroimino heterocyclic compounds and intermediates thereof. More particularly, the present invention relates to a convenient manufacturing process for preparation of 2-nitroimino imidazolidine compounds.

The present invention relates to the compounds of formula (I), and the N-oxides, stereoisomers, tautomers and agriculturally or veterinarily acceptable salts thereof wherein the variables are defined according to the description,

##STR00001##

The compounds of formula (I), as well as the N-oxides, stereoisomers, tautomers and agriculturally or veterinarily acceptable salts thereof, are useful for combating or controlling invertebrate pests, in particular arthropod pests and nematodes. The invention also relates to a method for controlling invertebrate pests by using these compounds and to plant propagation material and to an agricultural and a veterinary composition comprising said compounds.

The present invention provides compounds of formula (I) and pharmaceutically acceptable salts, solvates and prodrugs thereof wherein in, R.sup.1, R.sup.2, R.sup.3, L and X are as defined in the specification, processes for their preparation, pharmaceutical compositions containing them and their use in therapy particularly for use in treating disorders associated with nicotinic acetylcholine receptor 6 (nAChR6) activity.

##STR00001##