WO2003048112A1 - Aminoacetonitrile derivatives and their use for controlling parasites - Google Patents

Aminoacetonitrile derivatives and their use for controlling parasites Download PDF

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Publication number
WO2003048112A1
WO2003048112A1 PCT/EP2002/013811 EP0213811W WO03048112A1 WO 2003048112 A1 WO2003048112 A1 WO 2003048112A1 EP 0213811 W EP0213811 W EP 0213811W WO 03048112 A1 WO03048112 A1 WO 03048112A1
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WIPO (PCT)
Prior art keywords
halo
unsubstituted
mono
polysubstituted
another
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PCT/EP2002/013811
Other languages
French (fr)
Inventor
Pierre Ducray
Thomas Goebel
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Novartis Ag
Novartis Pharma Gmbh
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Application filed by Novartis Ag, Novartis Pharma Gmbh filed Critical Novartis Ag
Priority to JP2003549304A priority Critical patent/JP2005511685A/en
Priority to AU2002358620A priority patent/AU2002358620B2/en
Priority to US10/496,620 priority patent/US7091371B2/en
Priority to CA002466570A priority patent/CA2466570A1/en
Priority to MXPA04005455A priority patent/MXPA04005455A/en
Priority to EP02792909A priority patent/EP1456170A1/en
Priority to KR1020047008684A priority patent/KR100648117B1/en
Priority to BR0214703-3A priority patent/BR0214703A/en
Publication of WO2003048112A1 publication Critical patent/WO2003048112A1/en
Priority to US11/452,857 priority patent/US20060264653A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C07C255/01—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms
    • C07C255/32—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms having cyano groups bound to acyclic carbon atoms of a carbon skeleton containing at least one six-membered aromatic ring
    • C07C255/42—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms having cyano groups bound to acyclic carbon atoms of a carbon skeleton containing at least one six-membered aromatic ring the carbon skeleton being further substituted by singly-bound nitrogen atoms, not being further bound to other hetero atoms
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/34—Nitriles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P33/00—Antiparasitic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P33/00—Antiparasitic agents
    • A61P33/10—Anthelmintics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P33/00—Antiparasitic agents
    • A61P33/14—Ectoparasiticides, e.g. scabicides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C07C255/01—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms
    • C07C255/24—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and singly-bound nitrogen atoms, not being further bound to other hetero atoms, bound to the same saturated acyclic carbon skeleton
    • C07C255/29—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and singly-bound nitrogen atoms, not being further bound to other hetero atoms, bound to the same saturated acyclic carbon skeleton containing cyano groups and acylated amino groups bound to the carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/02—Systems containing only non-condensed rings with a three-membered ring

Definitions

  • the present invention relates to novel amidpacetonitrile compounds of the formula
  • Ar-i and Ar 2 are, independently of one another, unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, C C 6 alkyl, halo-CrC 6 alkyl, CrC 6 alkoxy, halo- C ⁇ -C 6 alkoxy, C 2 -C 6 alkenyl, halo-C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 3 -C 6 cycloalkyl, C 3 -C 6 cycloalkyl- oxy, C 3 -C 6 cycloalkylamino, C 3 -C 6 cycloalkylthio, C 2 -C 6 aIkenyloxy, halo-C 2 -C 6 alkenyloxy, d-Cealkylthio, halo-CrCealkyf
  • R-* is hydrogen, C r C 6 alkyl, halo-C r C 6 alkyl, allyl or C C 6 alkoxymethyl;
  • R 2 , R 3 , R 4 , R5. e, 7 and R 8 are either, independently of one another, hydrogen, halogen, unsubstituted or mono- or polyhalogenated C C 6 alkyl, unsubstituted or mono- or polyhalogenated C 2 -C 6 alkenyl, unsubstituted or mono- or polyhalogenated C 2 -C 6 alkynyl; unsubstituted or mono- or polysubstituted C r C 6 alkoxy, unsubstituted or mono- or polysubstituted halo-CrC 6 alkoxy, unsubstituted or mono- or polysubstituted C 3 -C 6 cycloalkyl, in which the substituents in each case can be independent of one another and are chosen from the group consisting of halogen and CrC 6 alkyl; or unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be
  • amidoacetonitrile compounds with pesticidal action are disclosed in EP-0953565 A2, for example.
  • the active ingredients specifically revealed therein may not, however, always meet the requirements concerning strength and activity spectrum. There consequently exists a need for active ingredients with improved pesticidal properties. It has now been found that the amidoacetonitrile compounds of the formula I have outstanding pesticidal properties, in particular against endo- and ectoparasites in and on productive livestock, domestic animals and plants.
  • Alkyl - as group per se and as structural component of other groups and compounds, for example of haloalkyl, alkoxy, alkylthio, alkylsulfinyl and alkylsulfonyl, - is, in each case giving due consideration to the number of carbon atoms which the relevant group or compound has in each individual case, either straight-chain, i.e. methyl, ethyl, propyl, butyl, pentyl or hexyl, or branched, e.g. isopropyl, isobutyl, sec-butyl, tert-butyl, isopentyl, neopentyl or isohexyl.
  • Alkenyl - as group per se and as structural component of other groups and compounds - is, in each case giving due consideration to the number of carbon atoms and conjugated or isolated double bonds which the relevant group or compound has in each individual case, either straight-chain, e.g. allyl, 2-butenyl, 3-pentenyl, 1-hexenyl or 1 ,3-hexadienyl, or branched, e.g. isopropenyl, isobutenyl, isoprenyl, tert-pentenyl or isohexenyl.
  • straight-chain e.g. allyl, 2-butenyl, 3-pentenyl, 1-hexenyl or 1 ,3-hexadienyl, or branched, e.g. isopropenyl, isobutenyl, isoprenyl, tert-pentenyl or isohexenyl.
  • Alkynyl - as group per se and as structural component of other groups and compounds - is, in each case giving due consideration to the number of carbon atoms and conjugated or isolated double bonds which the relevant group or compound has in each individual case, either straight-chain, e.g. propargyl, 2-butynyl, 3-pentynyl, 1 -hexynyl, 1 -heptynyl or 3-hexen- 1-ynyl, or branched, e.g. 3-methylbut-1 -ynyl, 4-ethylpent-1-ynyl or 4-methylhex-2-ynyl.
  • straight-chain e.g. propargyl, 2-butynyl, 3-pentynyl, 1 -hexynyl, 1 -heptynyl or 3-hexen- 1-ynyl, or branched, e.g. 3-methylbut-1 -ynyl, 4-ethylpent-1
  • Cycloalkyl - as group per se and as structural component of other groups and compounds, for example of halocycloalkyl, cycloalk ⁇ xy or cycloalkylthio, - is, in each case giving due consideration to the number of carbon atoms which the relevant group or compound has in each individual case, cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl.
  • Hetaryl is pyridyl, pyrimidyl, s-triazinyl, 1 ,2,4-triazinyl, thienyl, furanyl, pyrroyl, pyrazolyl, imidazolyl, thiazolyl, triazolyl, oxazolyl, thiadiazolyl, oxadiazolyl, benzothienyl, benzofuranyl, benzothiazolyl, indolyl or indazolyl, preferably pyridyl, pyrimidyl, s-triazinyl or 1 ,2,4-triazinyl, in particular pyridyl or pyrimidyl.
  • Halogen - as group per se and as structural component of other groups and compounds, such as of haloalkyl, haloalkoxy, haloalkylthio, haloalkylsulfinyl and haloalkylsulfonyl, - is fluorine, chlorine, bromine or iodine, in particular fluorine, chlorine or bromine, especially fluorine or chlorine.
  • Halogen-substituted carbon-comprising groups and compounds such as haloalkyl, haloalkoxy, haloalkylthio, haloalkylsulfinyl and haloalkylsulfonyl, can be partially halogenated or perhalogenated, it being possible, in the case of polyhalogenation, for the halogen substituents to be identical or different.
  • haloalkyl - as group per se and as structural component of other groups and compounds, such as of haloalkoxy or haloalkylthio, - are methyl substituted up to three times by fluorine, chlorine and/or bromine, such as CHF 2 or CF 3 ; ethyl substituted up to five times by fluorine, chlorine and/or bromine, such as CH 2 CF 3 , CF 2 CF 3 , CF 2 CCI 3 , CF 2 CHCI 2 , CF 2 CHF 2 , CF 2 CFCI 2 , CF 2 CHBr 2 , CF 2 CHCIF, CF 2 CHBrF or CCIFCHCIF; propyl or isopropyl substituted up to seven times by fluorine, chlorine and/or bromine, such as CH 2 CHBrCH 2 Br, CF 2 CHFCF 3 , CH 2 CF 2 CF 3 or CH(CF 3 ) 2 ; butyl or one of its isomers
  • Alkoxy groups preferably have a chain length of 1 to 6 carbon atoms.
  • alkoxy is methoxy, ethoxy, propoxy, isopropoxy, n-butoxy, isobutoxy, sec-butoxy and tert-butoxy, and also the pentyloxy and hexyloxy isomers; preferably methoxy and ethoxy.
  • Haloalkoxy groups preferably have a chain length of 1 to 6 carbon atoms.
  • Haloalkoxy is, e.g., fluoromethoxy, difluoromethoxy, trifluoromethoxy, 2,2,2-trifluoroethoxy, 1,1,2,2- tetrafluoroethoxy, 2-fluoroethoxy, 2-chloroethoxy, 2,2-difluoroethoxy and 2,2,2- trichloroethoxy; preferably difluoromethoxy, 2-chloroethoxy and trifluoromethoxy.
  • Ri is hydrogen, d-dalkyl or halo-C r C alkyl; particularly hydrogen or C 1 -C 2 alkyl; very particularly hydrogen;
  • R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 are, independently of one another, hydrogen, halogen, unsubstituted or mono- or polyhalogenated CrC 4 alkyl, unsubstituted or mono- or polyhalogenated C 2 -C 4 alkenyl, unsubstituted or mono- or polyhalogenated C 2 -C 4 alkynyl; unsubstituted or mono- or polysubstituted C ⁇ -C 4 alkoxy, unsubstituted or mono- or polysubstituted halo-d-C 4 alkoxy, C 3 -C 5 cycloalkyl, or unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, cyano, d-dalkyl, halo-C C alkyl
  • Rt is hydrogen, d-dalkyl or halo-d-C 4 alkyl
  • R 2 , 3. R4, R5, Re, R7 and R 8 are, independently of one another, hydrogen, halogen, unsubstituted or mono- or polyhalogenated d-dalkyl, unsubstituted or mono- or polyhalogenated C 2 -C 4 alkenyl, unsubstituted or mono- or polyhalogenated C 2 -C alkynyl; unsubstituted or mono- or polysubstituted d-C 4 alkoxy, unsubstituted or mono- or polysubstituted halo-d-C 4 alkoxy, C 3 -C 5 cycloalkyl, or unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, cyano, d-C alkyl, halo-d-dalkyl, C ⁇ - C 4 alkoxy and halo-C C 4 al
  • X is C(R 3 )(R 4 )-C(R 5 )(R 6 );
  • Ri is hydrogen or d-C 2 alkyl
  • R 2 , R3, R 4 , R5, Re, R7 and R 8 are, independently of one another, hydrogen, unsubstituted or mono- or polyhalogenated d-C alkyl, C 3 -C 5 cycloalkyl, or unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, d-dalkyl or halo-C C 4 alkyl; and
  • X is C(R 3 )(R 4 )-C(R 5 )(R6);
  • R 2 , R3, R 4 , R5, Re, R7 and R 8 are, independently of one another, hydrogen, d-C 2 alkyl or C 3 -C 5 cycloalkyl;
  • X is C(R 3 )(R 4 )-C(R 5 )(R 6 ).
  • the compounds of the formula I listed in Table 1 are particularly preferred within the context of the invention and the compounds of the formula I mentioned in the synthetic examples are very particularly preferred.
  • a further subject-matter of the invention is the process for the preparation of the compounds of the formula I, in each case in the free form or in the salt form, e.g. which comprises the reaction of a compound of the formula
  • the reactants can be reacted with one another as such, i.e. without addition of a solvent or diluent, e.g. in the molten form.
  • a solvent or diluent e.g. in the molten form.
  • solvents or diluents of: aromatic, aliphatic and alicyclic hydrocarbons and halogenated hydrocarbons, such as benzene, toluene, xylene, mesitylene, tetralin, chlorobenzene, dichlorobenzene, bromobenzene, petroleum ether, hexane, cyclohexane, dichloromethane, trichloromethane, tetrachloromethane, dichloroethane, trichloroethene or tetrachloroethene; ethers, such as diethyl ether, dipropyl ether, diisopropyl ether, dibutyl ether, tert-butyl methyl ether, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol dimethyl ether, dimethoxydiethyl ether,
  • Preferred leaving groups Q are halogens, tosylates, mesylates and triflates, particularly preferably halogens, especially chlorine.
  • Suitable bases for facilitating the reaction are, e.g., alkali metal or alkaline earth metal hydroxides, hydrides, amides, alkoxides, acetates, carbonates, dialkylamides or alkyl- silylamides, alkylamines, alkylenediamines, if desired N-alkylated and saturated or unsaturated, cycloalkylamines, basic heterocycles, ammonium hydroxides and carbocyclic amines.
  • Diisopropylethylamine and 4-(N,N-dimethylamino)pyridine are preferred.
  • the reaction is advantageously carried out at a temperature from approximately 0°C to approximately +100°C, preferably from approximately 10°C to approximately +40°C.
  • a compound of the formula II is reacted at ambient temperature in a halogenated hydrocarbon, preferably dichloromethane, with a compound of the formula III in the presence of a base, preferably a mixture of diisopropylethylamine and 4-(N,N- dimethylamino)pyridine.
  • a base preferably a mixture of diisopropylethylamine and 4-(N,N- dimethylamino)pyridine.
  • a further subject-matter of the invention is the process for the preparation of the compounds of the formula II, in each case in the free form or in the salt form, e.g. which comprises the reaction of a compound of the formula
  • Suitable cyanides are sodium cyanide, potassium cyanide, trimethylsilyl cyanide and acetone cyanohydrin.
  • Salts of compounds I can be prepared in a way known per se.
  • acid addition salts of compound I are obtained by treatment with a suitable acid or a suitable ion- exchange reagent and salts with bases are obtained by treatment with a suitable base or a suitable ion-exchange reagent.
  • Salts of compounds I can be converted in the usual way to the free compounds I, acid addition salts, e.g. by treatment with a suitable basic agent or a suitable ion exchange reagent, and salts with bases, e.g. by treatment with a suitable acid or a suitable ion- exchange reagent.
  • Salts of compounds I can be changed in a way known per se to other salts of compounds I, acid addition salts for example to other acid addition salts, e.g. by treatment of a salt of an inorganic acid, such as a hydrochloride, with a suitable metal salt, such as a sodium, barium or silver salt, of an acid, e.g. with silver acetate, in a suitable solvent, in which an inorganic salt, e.g. silver chloride, being formed is insoluble and for this reason precipitates from the reaction mixture.
  • a salt of an inorganic acid such as a hydrochloride
  • a suitable metal salt such as a sodium, barium or silver salt
  • an acid e.g. with silver acetate
  • the compounds I with salt-forming properties can be obtained in the free form or in the form of salts.
  • the compounds I can also be obtained in the form of their hydrates and/or can incorporate other solvents, which might, for example, be used in the crystallization of compounds existing in the solid form.
  • the compounds I can exist as optical and/or geometrical isomers or mixtures thereof.
  • the invention relates both to the pure isomers and to all possible mixtures of isomers and is to be correspondingly understood in each case heretofore and hereinafter, even if stereochemical details are not specifically referred to in every case.
  • Mixtures of diastereoisomers and mixtures of racemates of compounds I obtainable according to the process - depending on the choice of the starting materials and operating methods - or otherwise obtainable can be separated in a known way into the pure diastereoisomers or racemates on the basis of the physicochemical differences of the components, for example by fractional crystallization, distillation and/or chromatography.
  • enantiomers such as racemates
  • optical isomers can be resolved into the optical isomers by known methods, for example by recrystallization from an optically active solvent, by chromatography on chiral adsorbents, e.g. high performance liquid chromatography (HPLC) on acetylcellulose, with the help of suitable microorganisms, by cleavage with specific immobilized enzymes, via the formation of inclusion complexes, e.g. by using chiral crown ethers, in which only one enantiomer is complexed.
  • HPLC high performance liquid chromatography
  • pure diastereoisomers or enantiomers according to the invention can also be obtained through generally known methods of diastereoselective or enantioselective synthesis, e.g. by carrying out the process according to the invention with educts with correspondingly suitable stereochemistry.
  • the biologically most effective isomer e.g. enantiomer, or mixture of isomers, e.g. mixture of enantiomers, is isolated or synthesized each time, provided that the individual components have different biological activity.
  • the invention relates in particular to the preparation process described in the examples.
  • the compounds I according to the invention are characterized by a particularly broad activity spectrum and are valuable active ingredients in the field of pest control which are well tolerated by warm-blooded species, fish and plants, including in particular for controlling endo- and ecto parasites which parasitize animals.
  • insects in particular, insects, mites and ticks. This includes insects of the orders: Lepidoptera, Coleoptera, Homoptera, Heteroptera, Diptera, Thysanoptera, Orthoptera, Anoplura, Siphonaptera, Mallophaga, Thysanura, Isoptera, Psocoptera and Hymenoptera.
  • ectoparasites which are a nuisance to man or animals and which transmit pathogens, for example flies, such as Musca domestica, Musca vetustissima, Musca autumnalis, Fannia canicularis, Sarcophaga carnaria, Lucilia cuprina, Hypoderma bovis, Hypoderma lineatum, Chrysomyia chloropyga, Dermatobia hominis, Cochliomyia hominivorax, Gasterophilus intestinalis, Oestrus ovis, Stomoxys calcitrans, Haematobia irritans, and mosquitoes (Nematocera), such as Culicidae, Simuliidae, Psychodidae, but also bloodsucking parasites, for example fleas, such as Ctenocephalides felis and Ctenocephalides canis (cat and dog fleas), Xenopsylla cheopis, Pulex irri
  • pathogens for example
  • ticks are, e.g., Boophilus, Amblyomma, Anocentor, Dermacentor, Haemaphysalis, Hyalomma, Ixodes, Rhipicentor, Margaropus, Rhipicephalus, Argas, Otobius and Ornithodoros and the like, which preferably infest warm-blooded animals, including farm animals, such as cows, pigs, sheep and goats, poultry, such as chickens, turkeys and geese, fur-bearing animals, such as mink, foxes, chinchillas, rabbits and the like, and pets, such as cats and dogs, but also man.
  • farm animals such as cows, pigs, sheep and goats
  • poultry such as chickens, turkeys and geese
  • fur-bearing animals such as mink, foxes, chinchillas, rabbits and the like
  • pets such as cats and dogs, but also man.
  • the compounds I according to the invention are also effective against all or individual development stages of normally sensitive but also of resistant animal pests, such as insects and representatives of the order Acarina.
  • the insecticidal, ovicidal and/or acaricidal action of the active ingredients according to the invention may in the process be displayed directly, i.e. in killing the pests, immediately or only after some time, for example during moulting, or their eggs, or indirectly, e.g. in reduced egg laying and/or in a reduced hatching rate, in which the good action corresponds to a kill rate (mortality) of at least 50 to 60%.
  • the compounds I can also be used against hygiene pests, in particular of the order Diptera with the families Sarcophagidae, Anophilidae and Culicidae; of the orders Orthoptera, Dictyoptera (e.g. the family Blattidae) and Hymenoptera (e.g. the family Formicidae).
  • the compounds I also have lasting activity in the case of phytoparasitic mites and insects.
  • spider mites of the order Acarina they are active against eggs, nymphs and adults of Tetranychidae (Tetranychus spp. and Panonychus spp.).
  • sucking insects of the order Homoptera are highly active in the case of the sucking insects of the order Homoptera, in particular against pests of the families Aphididae, Delphacidae, Cicadellidae, Psyllidae, Loccidae, Diaspididae and Eriophydidae (e.g. citrus rust mite); of the orders Hemiptera, Heteroptera and Thysanoptera, and in the case of the phytophagous insects of the orders Lepidoptera, Coleoptera, Diptera and Orthoptera.
  • the compounds of the formula I are accordingly active against all development stages of sucking and feeding insects on crops such as cereals, cotton, rice, maize, soya beans, potatoes, vegetables, fruit, tobacco, hops, citrus fruit, avocados and others.
  • the compounds of the formula I are also active against plant nematodes of the genera Meloidogyne, Heterodera, Pratylenchus, Ditylenchus, Radopholus, Rizoglyphus and others.
  • the compounds are particularly active against helminths, among which the endoparasitic nematodes and trematodes can be the cause of serious diseases in mammals and poultry, e.g. in sheep, pigs, goats, cattle, horses, donkeys, dogs, cats, guinea pigs and ornamental birds.
  • Typical nematodes of this indication are: Haemonchus, Trichostrongylus, Ostertagia, Nematodirus, Cooperia, Ascaris, Bunostonum, Oesophagostonum, Chabertia, Trichuris, Strongylus, Trichonema, Dictyocaulus, Capillaria, Heterakis, Toxocara, Ascaridia, Oxyuris, Ancylostoma, Uncinaria, Toxascaris and Parascaris. Mention may specifically be made, among the trematodes, of the family of the Fasciolideae, in particular Fasciola hepatica. The particular advantage of the compounds of the formula I is their activity against such parasites, which are resistant to benzimidazole-based active ingredients.
  • Parasites of the families Filariidae and Setariidae are found in internal cell tissue and in organs, e.g. the heart, blood vessels, lymph vessels and subcutaneous tissue. Mention may particularly be made here of the dog heartworm, Dirofilaria immitis.
  • the compounds of the formula I are highly effective against these parasites.
  • the pests which can be controlled with the compounds of the formula I also include, from the class Cestoda (tapeworms), the families Mesocestoidae, in particular the genus Mesocestoides, especially M. lineatus; Dilepididae, in particular Dipylidium caninum, Joyeuxiella spp., especially Joyeuxiella pasquali, and Diplopylidium spp.; and Taeniidae, in particular Taenia pisiformis, Taenia cervi, Taenia ovis, Taneia hydatigena, Taenia multiceps, Taenia taeniaeformis, Taenia serialis and Echinocuccus spp., particularly preferably Taneia hydatigena, Taenia ovis, Taenia multiceps, Taenia serialis; Echinocuccus granulosus and Echinococcus granulosus and Echinococcus multilocularis, and Multiceps multice
  • Taenia hydatigena T. pisiformis, T. ovis, T. taeniaeformis, Multiceps multiceps, Joyeuxiella pasquali, Dipylidium caninum, Mesocestoides spp., Echinococcus granulosus and E. multilocularis are controlled simultaneously with Dirofilaria immitis, Ancylostoma spp., Toxocara spp. and/or Trichuris vulpis on or in dogs and cats.
  • Ctenocephalides felis and/or C.canis are controlled simultaneously with the abovementioned nematodes and cestodes.
  • the compounds of the formula I are also suitable for controlling parasites which are pathogenic to man, among which may be mentioned, as typical representatives occurring in the digestive tract, those of the genera Ancylostoma, Necator, Ascaris, Strongyloides, Trichinella, Capillaria, Trichuris and Enterobius.
  • the compounds of the present invention are also active against parasites of the genera Wuchereria, Brugia, Onchocerca and Loa from the family of the Filariidae, which occur in the blood, in tissue and in various organs, and also against Dracunculus and parasites of the genera Strongyloides and Trichinella, which specifically infect the gastrointestinal tract.
  • the compounds of the formula I are also active against harmful fungi which cause disease in plants and in man and animals.
  • the good pesticidal action of the compounds of the formula I according to the invention corresponds to a kill rate (mortality) of at least 50-60% of the pests mentioned.
  • the compounds of the formula I are characterized by an extraordinarily long duration of action.
  • the compounds of the formula I are used as such or preferably together with the auxiliaries conventional in formulation technology and can accordingly be processed in a known way, for example to emulsifiable concentrates, directly dilutable solutions, dilute emulsions, soluble powders, granules and also encapsulations in polymer substances.
  • the application methods as well as the compositions are chosen in accordance with the intended aims and the prevailing circumstances.
  • the formulation i.e. the compositions, preparations or combinations comprising the active ingredient of the formula I, or combinations of these active ingredients with other active ingredients, and, if desired, a solid or liquid additive, is prepared in a known way, for example by intimately mixing and/or grinding the active ingredients with extenders, for example with solvents, solid carriers and, if desired, surface-active compounds (surfactants).
  • extenders for example with solvents, solid carriers and, if desired, surface-active compounds (surfactants).
  • solvents such as ethanol, propanol or butanol, and glycols, and their ethers and esters, such as propylene glycol, dipropylene glycol ether, ethylene glycol, ethylene glycol monomethyl ether or ethylene glycol monoethyl ether, ketones, such as cyclohexanone, isophorone or diacetone alcohol, strongly polar solvents, such as N-methyl-2-pyrrolidone, dimethyl sulfoxide, dimethylformamide or water, vegetable oils, such as rapeseed oil, castor oil, coconut oil or soybean oil; and, if desired, silicone oils.
  • alcohols such as ethanol, propanol or butanol
  • glycols and their ethers and esters, such as propylene glycol, dipropylene glycol ether, ethylene glycol, ethylene glycol monomethyl ether or ethylene glycol monoethyl ether, ketones, such as cyclohexanone, isophorone
  • Preferred application forms for use in warm-blooded animals for controlling helminths include solutions, emulsions, suspensions (drenches), feed additives, powders, tablets, including effervescent tablets, boluses, capsules, microencapsulations and pour-on formulations, care having to be taken over the physiological compatibility of the formulation auxiliaries.
  • Suitable binders for tablets and boluses are chemically modified polymeric natural products which are soluble in water or alcohol, such as starch, cellulose or protein derivatives (e.g., methylcellulose, carboxymethylcellulose, ethylhydroxyethylcellulose, proteins, such as zein, gelatin, and the like), and synthetic polymers, for example polyvinyl alcohol, polyvinylpyrrolidone, and the like. Tablets also comprise fillers (e.g., starch, microcrystalline cellulose, sugar, lactose, and the like), lubricants and disintegrating agents.
  • fillers e.g., starch, microcrystalline cellulose, sugar, lactose, and the like
  • feed concentrates or compositions can, in addition to the active ingredients, also comprise additives, vitamins, antibiotics, chemotherapeutics, or other pesticides, mainly bacteriostats, fungistats, coccidiostats, or also hormone preparations, anabolics or substances which promote growth, influence the quality of meat from animals for slaughter or are useful to the organism in another way.
  • the finished feed or the finished drinking water comprises the active ingredients preferably in a concentration from approximately 0.0005 to 0.02% by weight (5-200 ppm).
  • the compounds of the formula I according to the invention can be used alone or in combination with other biocides. They can, e.g., be combined with pesticides possessing the same direction of action, in order to enhance the action, or can be combined with substances possessing another direction of action, in order to broaden the activity spectrum. It may also make sense to add substances which repel, known as repellents. If it is desired to expand the activity spectrum with regard to endoparasites, for example worms, the compounds of the formula I are appropriately combined with substances having endoparasiticidal properties. They can also, naturally, be used in combination with antibacterial compositions. Since the compounds of the formula I represent adulticides, i.e.
  • Suitable participants in the mixture include biocides, for example the insecticides and acaricides with different mechanisms of action mentioned subsequently and sufficiently known to a person skilled in the art, for example chitin synthesis inhibitors, growth regulators; active ingredients which act as juvenile hormones; active ingredients which act as adulticides; broad spectrum insecticides, broad spectrum acaricides and nematicides; but also the sufficiently known anthelmintics and substances which repel insects and/or members of the Acarina, known as repellents or detachers.
  • biocides for example the insecticides and acaricides with different mechanisms of action mentioned subsequently and sufficiently known to a person skilled in the art, for example chitin synthesis inhibitors, growth regulators; active ingredients which act as juvenile hormones; active ingredients which act as adulticides; broad spectrum insecticides, broad spectrum acaricides and nematicides; but also the sufficiently known anthelmintics and substances which repel insects and/or members of the Acarina, known as repellent
  • Nonlimiting examples of suitable insecticides and acaricides are:
  • Avermectin B-* 32. Cartap 54. Diethion
  • Nonlimiting examples of suitable anthelmintics are mentioned subsequently, in which some representatives, in addition to the anthelmintic activity, also have an insecticidal and acaricidal activity and are already included in the above list:
  • Nonlimiting examples of suitable repelling substances are:
  • LV A preparation comprising insect-active fungi, preferably Verticillium lecanii, from The Pesticide Manual, 11 th Ed. (1997), The British Crop Protection Council, London, page 1266; Beauveria brogniartii, from The Pesticide Manual, 11 ,h Ed. (1997), The British Crop Protection Council, London, page 85; and Beauveria bassiana, from The Pesticide Manual, 11 h Ed. (1997), The British Crop Protection Council, London, page 83;
  • LPI A preparation comprising insect-active viruses, preferably Neodipridon Sertifer NPV, from The Pesticide Manual, 11 ,h Ed. (1997), The British Crop Protection Council, London, page 1342; Mamestra brassicae NPV, from The Pesticide Manual, 11 th Ed. (1997), The British Crop Protection Council, London, page 759; and Cydia pomonella granulosis virus, from The Pesticide Manual, 11 ,h Ed. (1997), The British Crop Protection Council, London, page 291 ;
  • insect-active viruses preferably Neodipridon Sertifer NPV
  • Neodipridon Sertifer NPV from The Pesticide Manual, 11 ,h Ed.
  • Mamestra brassicae NPV from The Pesticide Manual, 11 th Ed.
  • Cydia pomonella granulosis virus from The Pesticide Manual, 11 ,h Ed. (1997), The British Crop Protection Council, London, page 291 ;
  • a further essential aspect of the present invention relates to combination preparations for the control of parasites in warm-blooded animals, which comprise, in addition to a compound of the formula I, at least one further active ingredient with an identical or different direction of action and at least one physiologically compatible carrier.
  • the present invention is not restricted to combinations of two.
  • the anthelmintic compositions according to the invention generally comprise 0.1 to 99% by weight, in particular 0.1 to 95% by weight, of active ingredient of the formula I or mixtures thereof, and 99.9 to 1% by weight, in particular 99.8 to 5% by weight, of a solid or liquid additive, including 0 to 25% by weight, in particular 0.1 to 25% by weight, of a surfactant.
  • the compositions according to the invention can be applied topically, perorally, parenterally or subcutaneously to the animals to be treated, the compositions being present in the form of solutions, emulsions, suspensions (drenches), powders, tablets, boluses, capsules and as pour-on formulations.
  • the pour-on or spot-on method consists in applying the compound of the formula I to a locally restricted part of the skin or fur, advantageously on the neck or back of the animal. This is carried out, e.g., by applying a spot or dash of the pour-on or spot-on formulation to a relatively small area of the fur, from where the active substance spreads out virtually unaided over wide regions of the fur because of the spreading components of the formulation and supported by the movements of the animal.
  • Suitable carriers are, e.g., oily solutions; alcoholic and isopropanolic solutions, for example solutions of 2-octyldodecanol or oleyl alcohol; solutions in esters of monocarboxylic acids, such as isopropyl myristate, isopropyl palmitate, lauric acid oxal ester, oleyl oleate, decyl oleate, hexyl laurate, capric acid esters of saturated fatty alcohols with a chain length of C ⁇ 2 -d 8 ; solutions of esters of dicarboxylic acids, such as dibutyl phthalate, diisopropyl isophthalate, diisopropyl adipate or di(n-butyl) adipate, or also solutions of esters of ali
  • glycols It can be advantageous if a dispersant known from the pharmaceutical or cosmetics industry is additionally present.
  • examples are 2-pyrrolidone, 2-(N-alkyl)pyrrolidone, acetone, polyethylene glycol and ethers and esters thereof, propylene glycol or synthetic triglycerides.
  • the oily solutions include, e.g., vegetable oils, such as olive oil, groundnut oil, sesame oil, pine oil, linseed oil or castor oil.
  • vegetable oils can also be present in epoxidized form. Paraffin oils and silicone oils can also be used.
  • a pour-on or spot-on formulation comprises 1 to 20% by weight of a compound of the formula I, 0.1 to 50% by weight of dispersant and 45 to 98.9% by weight of solvent.
  • the pour-on or spot-on method can be used particularly advantageously with gregarious animals, such as cattle, horses, sheep or pigs, where it is difficult or time-consuming to treat all the animals orally or via injection. Because of its simplicity, this method can naturally also be used with all other animals, including individual domestic animals or pets, and is very popular with animal owners because it can often be implemented without the expert assistance of a veterinary surgeon.
  • compositions can comprise yet further additives, such as stabilizers, antifoaming agents, viscosity regulators, binders, deposit builders and other active ingredients to obtain specific effects.
  • additives such as stabilizers, antifoaming agents, viscosity regulators, binders, deposit builders and other active ingredients to obtain specific effects.
  • Such anthelmintic compositions used by the end user likewise form part of the present invention.
  • the active ingredients of the formula I can be used in all their steric configurations or mixtures thereof.
  • the invention also includes a method for the prophylactic protection of warm-blooded animals, in particular of productive livestock, domestic animals and pets, against parasitic helminths, which comprises applying the active ingredients of the formula I or the active ingredient formulations prepared therefrom as a feed additive or drinking water additive or also in the solid or liquid form, orally, by injection or parenterally, to the animals.
  • the invention also includes the compounds of the formula I according to the invention for use in one of the methods mentioned.
  • Preferred formulations are in particular composed in the following way:
  • the active ingredient is dissolved in methylene chloride and sprayed onto the carrier, and the solvent is subsequently evaporated under reduced pressure. Such granules can be added to the animal feed.
  • the finely milled active ingredient is applied evenly in a mixer to the kaolin, which has been moistened with polyethylene glycol. In this way, dust-free coated granules are obtained.
  • Methylcellulose is stirred into water. After the material has swollen, silica is stirred in and the mixture is homogeneously suspended. Active ingredient and maize starch are mixed. The aqueous suspension is incorporated in this mixture and kneaded to a dough. The substance thus obtained is granulated through a 12 M sieve and dried.
  • Preparation The active ingredient is dissolved in a portion of the oil with stirring and, if desired, gentle heating, made up to the required volume after cooling and sterilely filtered through a suitable membrane filter with a size of 0.22 ⁇ m.
  • Active ingredient 0.1-1.0 g 4-Hydroxymethyl-1 ,3-dioxolane (glycerol formal) 40 g
  • Preparation The active ingredient is dissolved in a portion of the solvent with stirring, made up to the required volume and sterilely filtered through a suitable membrane filter with a size of 0.22 ⁇ m.
  • Active ingredient 0.1-1.0 g Polyethoxylated castor oil (40 ethylene oxide units) 10 g
  • Active ingredient 0.1-1.0 g Polyethoxylated sorbitan monooleate (20 ethylene oxide units) 8 g 4-Hydroxymethyl-1 ,3-dioxolane (glycerol formal) 20 g Benzyl alcohol 1 g Water for injections ad 100 ml
  • Preparation The active ingredient is dissolved in the solvents and the surfactant and made up to the required volume with water. Sterile filtration is carried out through a suitable membrane filter with a pore diameter of 0.22 ⁇ m.
  • the aqueous systems can preferably also be used for oral and/or intraruminal administration.
  • compositions can also comprise further additives, such as stabilizers, e.g. epoxidized or nonepoxidized vegetable oils (epoxidized coconut oil, rapeseed oil or soybean oil), antifoaming agents, e.g. silicone oil, preservatives, viscosity regulators, binders, deposit builders and fertilizers or other active ingredients to obtain specific effects.
  • stabilizers e.g. epoxidized or nonepoxidized vegetable oils (epoxidized coconut oil, rapeseed oil or soybean oil)
  • antifoaming agents e.g. silicone oil, preservatives, viscosity regulators, binders, deposit builders and fertilizers or other active ingredients to obtain specific effects.
  • Example 1 4-(2-Trifluoromethylphenyl)-3-buten-2-one a) 4.29 g of N,O-dimethylhydroxylamine hydrochloride, 9.5 g of 2-trifluoromethylcinnamic acid, 11.36 g of ethyldiisopropylamine, 0.45 g of 4-dimethylaminopyridine and 8.43 g of N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride are dissolved in 80 ml of methylene chloride and are stirred at ambient temperature under a nitrogen atmosphere for 8 h.
  • the mixture is subsequently diluted with 200 ml of ethyl acetate and then washed twice with 1 N hydrochloric acid solution, then twice with a saturated sodium bicarbonate solution and finally once with saturated sodium chloride solution.
  • the organic phase is separated, dried with magnesium sulfate and evaporated under reduced pressure. After purifying by flash chromatography, N-methoxy-N-methyl-3-(2-trifluoromethylphenyl)acrylamide is thus obtained.
  • Raney nickel 200 mg are added to a solution of 2.05 g of 4-(2-trifluoromethylphenyl)-3- buten-2-one in 100 ml of ethyl acetate and the mixture is stirred under a hydrogen atmosphere and at standard pressure for 7 h. The mixture is subsequently filtered and the filtrate is evaporated under reduced pressure, whereby the title compound is obtained.
  • colubriformis are immature adults, the gerbils are sacrificed in order to count the worms.
  • the activity is calculated in % reduction in the number of worms in each gerbil by comparison with the geometric mean of the number of worms from 8 infected and untreated gerbils.
  • test methods can be employed in investigating the insecticidal and/or acaricidal action of the compounds of the formula I on animals and plants.
  • 1 ml of an aqueous suspension of the active substance to be tested is thus mixed at approximately 50°C with 3 ml of a special medium for raising larvae, so that a homogenate with an active ingredient content of either 250 or 125 ppm is formed.
  • Approximately 30 Lucilia larvae (L-i) are introduced into each test tube sample. After 4 days, the mortality rate is determined.
  • An adhesive tape is attached horizontally to a PVC plate such that 10 female Boophilus microplus ticks (Biarra strain) which have sucked themselves full of blood can be adhesively attached to the tape via their backs in a row, next to one another.
  • Each tick is injected, using an injection needle, with 1 ⁇ l of a liquid which is a 1:1 mixture of polyethylene glycol and acetone and in which a certain amount of active ingredient of alternatively 1 , 0.1 or 0.01 ⁇ g per tick is dissolved.
  • Control animals receive an injection not comprising an active ingredient. After the treatment, the animals are kept in an insectarium under standard conditions at approximately 28°C and 80% relative humidity until egg laying has occurred and the larvae have hatched from the eggs of the control animals.
  • An indication of the activity of the test compounds is the number of the females which
  • test tubes After immersing for 10 minutes and shaking for 2 x 10 seconds on a vortex mixer, the test tubes are plugged with a thick wad of cotton wool and are inverted. As soon as all the liquid has been soaked up by the wad of cotton, the wad is pushed halfway into the still inverted test tube, so that most of the liquid is squeezed out of the wad of cotton and flows into a petri dish placed underneath.
  • test tubes are now, until evaluation, stored at ambient temperature in a room lit by daylight. After 14 days, the test tubes are immersed in a beaker of boiling water. If, in reaction to the heat, the ticks begin to move, the test substance is inactive at the test concentration; otherwise, the ticks are considered to be dead and the test substance is considered to be active at the test concentration. All substances are tested in a concentration range from 0.1 to 100 ppm. 6. Action against Dermanyssus gallinae
  • a sugar cube is treated with a solution of the test substance such that the concentration of test substance in the sugar, after drying overnight, is 250 ppm.
  • This treated cube is placed with a wet wad of cotton and 10 adult Musca domestica of an OP-resistant strain on an aluminium dish, is covered with a beaker and is incubated at 25°C. The mortality rate is determined after 24 hours.

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Abstract

The invention relates to compounds of the general formula (I), in which R1, R2, X, Ar1 and Ar2 are as defined in claim 1, and to any enantiomers thereof. The active ingredients have advantageous pesticidal properties. They are particularly suitable for controlling parasites in warm-blooded animals.

Description

AMINOACETONITRI E DERIVATIVES AND THEIR USE FOR CONTROLLING PARASITES
The present invention relates to novel amidpacetonitrile compounds of the formula
Figure imgf000002_0001
in which
Ar-i and Ar2 are, independently of one another, unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, C C6alkyl, halo-CrC6alkyl, CrC6alkoxy, halo- Cι-C6alkoxy, C2-C6alkenyl, halo-C2-C6alkenyl, C2-C6alkynyl, C3-C6cycloalkyl, C3-C6cycloalkyl- oxy, C3-C6cycloalkylamino, C3-C6cycloalkylthio, C2-C6aIkenyloxy, halo-C2-C6alkenyloxy, d-Cealkylthio, halo-CrCealkyfth-0. Cι-C6alkylsulfonyloxy, halo-CrC6alkylsuIfonyloxy, CrC6alkyIsulfinyl, halo-C C6alkylsulfinyl, Cι-C6alkylsulfonyl, halo-CrC6alkylsulfonyl, C2-C6alkenylthio, halo-C2-C6alkenyIthio, C2-C6alkenylsulfinyl, halo-C2-C6alkenylsulfinyl, C2-C6alkenylsulfonyl, halo-C2-C6alkenylsulfonyl, Cι-C6alkylamino, di-CrCealkylamino, CrC6alkylsulfonylamino, halo-CrC6alkylsulfonylamino, Cι-C6alkylcarbonyl, halo- CrC6alkylcarbonyl, Cι-C6alkoxycarbonyl, C C6alkylaminocarbonyl and di- Cι-C6alkylaminocarbonyl; unsubstituted or mono- or polysubstituted phenylamino; unsubstituted or mono- or polysubstituted phenylcarbonyl; unsubstituted or mono- or polysubstituted phenylmethoxyimino; unsubstituted or mono- or polysubstituted phenylhydroxy- methyl; unsubstituted or mono- or polysubstituted 1 -phenyl-1 -hydroxyethyl; unsubstituted or mono- or polysubstituted phenylchloromethyl; unsubstituted or mono- or polysubstituted phenylcyanomethyl; unsubstituted or mono- or polysubstituted phenyl, in which the substituents in each case can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, C C6alkyl, halo-CrC6alkyl, CrC6alkoxy, halo- C C6alkoxy, CrC6alkylthio, halo-C C6alkyIthio, CrC6alkylsulfinyl, halo-C-ι-C6alkylsulfinyl, C C6alkylsulfonyl and halo-CrC6aIkylsulfonyl; unsubstituted or mono- or polysubstituted phenoxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, CrC6alkyI, halo-Cι-C6alkyl, Cι-C6alkoxy, halo- d-Cealkoxy, C C6alkylthio, halo-C C6alkylthio, C C6alkylsulfinyl, halo-C C6alkylsulfinyl, C-ι-C6alkylsulfonyl and halo-CrCealkylsulfonyl; unsubstituted or mono- or polysubstituted phenylacetylenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, CrC6alkyl, halo-CrC6alkyl, C C6alkoxy, halo-CrC6alkoxy, C-*-C6alkylthio, halo-Cι-C6alkylthio, CrC6alkylsulfinyl, halo-C-*- C6alkylsulfinyl, CrC6alkylsulfonyl and halo-CrC6alkylsulfonyl; and unsubstituted or mono- or polysubstituted pyridyloxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, CrC6aIkyl, halo-Cι-C6alkyl, C Cβalkoxy, halo-C C6alkoxy, CrC6alkylthio, halo-C-*-C6alkylthio, C-*-C6alkylsulfinyl, halo- C C6alkylsulfinyl, C-*-C6alkylsulfonyl and halo-Cι-C6alkylsulfonyl; unsubstituted or mono- or polysubstituted hetaryl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, CrC6alkyl, halo-CrC6alkyl, C-*-C6alkoxy, halo-CrCβalkoxy, C2-C6alkenyloxy, halo- C -C6alkenyloxy, C-*-C6alkylthio, halo-Cι-C6alkylthio, Cι-C6alkylsulfinyl, halo- CrC6alkylsulfinyl, C2-C6alkenylthio, halo-C2-C6aIkenylthio, C2-C6alkenylsulfinyl, halo- C2-C6alkenylsulfinyl, CrC6alkylsulfonyl, halo-C-*-C6alkylsuIfonyl, C2-C6alkenylsulfonyl, halo- C2-C6alkenylsulfonyl, CrC6alkylamino and di-CrC6alkylamino; or unsubstituted or mono- or polysubstituted naphthyl or quinolyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-Cealkyl, halo-C C6alkyl, C C6alkoxy, halo-C C6alkoxy, C2-C6alkenyloxy, halo- C2-C6alkenyloxy, CrC6alkylthio, halo-Cι-C6alkylthio, CrC6alkyIsulfinyl, halo- d-Cealkylsulfinyl, C2-C6alkenylthio, halo-C2-C6aIkenylthio, C2-C6alkenylsulfinyl, halo- C2-C6alkenylsulfinyl, Cι-C6alkylsulfonyl, halo-Cι-C6alkylsulfonyl, C2-C6alkenylsulfonyl, halo- C2-C6alkenylsulfonyl, Cι-C6alkylamino and di-C-ι-C6alkylamino;
R-* is hydrogen, CrC6alkyl, halo-CrC6alkyl, allyl or C C6alkoxymethyl;
R2, R3, R4, R5. e, 7 and R8 are either, independently of one another, hydrogen, halogen, unsubstituted or mono- or polyhalogenated C C6alkyl, unsubstituted or mono- or polyhalogenated C2-C6alkenyl, unsubstituted or mono- or polyhalogenated C2-C6alkynyl; unsubstituted or mono- or polysubstituted CrC6alkoxy, unsubstituted or mono- or polysubstituted halo-CrC6alkoxy, unsubstituted or mono- or polysubstituted C3-C6cycloalkyl, in which the substituents in each case can be independent of one another and are chosen from the group consisting of halogen and CrC6alkyl; or unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, CrC6alkyl, halo-C C6alkyl, CrC6alkoxy, halo-C-*-C6alkoxy, C C6alkylthio, halo-Cι-C6alkylthio, Cι-C6alkylsulfinyl( halo- CrC6alkylsulfinyl, CrC6alkylsulfonyl, halo-C-ι-C6alkylsulfonyl, Cι-C6alkylamino or di- C-*-C6alkylamino; or R2 and R3 are jointly C2-C6alkylene; and
X is C(R3)(R4)-C(R5)(R6) or C(R7)=C(R8); to their preparation and use in the control of endo- and ectoparasites, especially helminths, in and on warm-blooded productive livestock, domestic animals and plants, and also to pesticides which comprise at least one of these compounds.
Substituted amidoacetonitrile compounds with pesticidal action are disclosed in EP-0953565 A2, for example. The active ingredients specifically revealed therein may not, however, always meet the requirements concerning strength and activity spectrum. There consequently exists a need for active ingredients with improved pesticidal properties. It has now been found that the amidoacetonitrile compounds of the formula I have outstanding pesticidal properties, in particular against endo- and ectoparasites in and on productive livestock, domestic animals and plants.
Alkyl - as group per se and as structural component of other groups and compounds, for example of haloalkyl, alkoxy, alkylthio, alkylsulfinyl and alkylsulfonyl, - is, in each case giving due consideration to the number of carbon atoms which the relevant group or compound has in each individual case, either straight-chain, i.e. methyl, ethyl, propyl, butyl, pentyl or hexyl, or branched, e.g. isopropyl, isobutyl, sec-butyl, tert-butyl, isopentyl, neopentyl or isohexyl.
Alkenyl - as group per se and as structural component of other groups and compounds - is, in each case giving due consideration to the number of carbon atoms and conjugated or isolated double bonds which the relevant group or compound has in each individual case, either straight-chain, e.g. allyl, 2-butenyl, 3-pentenyl, 1-hexenyl or 1 ,3-hexadienyl, or branched, e.g. isopropenyl, isobutenyl, isoprenyl, tert-pentenyl or isohexenyl.
Alkynyl - as group per se and as structural component of other groups and compounds - is, in each case giving due consideration to the number of carbon atoms and conjugated or isolated double bonds which the relevant group or compound has in each individual case, either straight-chain, e.g. propargyl, 2-butynyl, 3-pentynyl, 1 -hexynyl, 1 -heptynyl or 3-hexen- 1-ynyl, or branched, e.g. 3-methylbut-1 -ynyl, 4-ethylpent-1-ynyl or 4-methylhex-2-ynyl. Cycloalkyl - as group per se and as structural component of other groups and compounds, for example of halocycloalkyl, cycloalkόxy or cycloalkylthio, - is, in each case giving due consideration to the number of carbon atoms which the relevant group or compound has in each individual case, cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl.
Hetaryl is pyridyl, pyrimidyl, s-triazinyl, 1 ,2,4-triazinyl, thienyl, furanyl, pyrroyl, pyrazolyl, imidazolyl, thiazolyl, triazolyl, oxazolyl, thiadiazolyl, oxadiazolyl, benzothienyl, benzofuranyl, benzothiazolyl, indolyl or indazolyl, preferably pyridyl, pyrimidyl, s-triazinyl or 1 ,2,4-triazinyl, in particular pyridyl or pyrimidyl.
Halogen - as group per se and as structural component of other groups and compounds, such as of haloalkyl, haloalkoxy, haloalkylthio, haloalkylsulfinyl and haloalkylsulfonyl, - is fluorine, chlorine, bromine or iodine, in particular fluorine, chlorine or bromine, especially fluorine or chlorine.
Halogen-substituted carbon-comprising groups and compounds, such as haloalkyl, haloalkoxy, haloalkylthio, haloalkylsulfinyl and haloalkylsulfonyl, can be partially halogenated or perhalogenated, it being possible, in the case of polyhalogenation, for the halogen substituents to be identical or different. Examples of haloalkyl - as group per se and as structural component of other groups and compounds, such as of haloalkoxy or haloalkylthio, - are methyl substituted up to three times by fluorine, chlorine and/or bromine, such as CHF2 or CF3; ethyl substituted up to five times by fluorine, chlorine and/or bromine, such as CH2CF3, CF2CF3, CF2CCI3, CF2CHCI2, CF2CHF2, CF2CFCI2, CF2CHBr2, CF2CHCIF, CF2CHBrF or CCIFCHCIF; propyl or isopropyl substituted up to seven times by fluorine, chlorine and/or bromine, such as CH2CHBrCH2Br, CF2CHFCF3, CH2CF2CF3 or CH(CF3)2; butyl or one of its isomers substituted up to nine times by fluorine, chlorine and/or bromine, such as CF(CF3)CHFCF3 or CH2(CF2)2CF3; pentyl or one of its isomers substituted up to eleven times by fluorine, chlorine and/or bromine, such as CF(CF3)(CHF)2CF3 or CH2(CF2)3CF3; and hexyl or one of its isomers substituted up to thirteen times by fluorine, chlorine and/or bromine, such as (CH2) CHBrCH2Br, CF2(CHF)4CF3, CH2(CF2)4CF3 or C(CF3)2(CHF)2CF3.
Alkoxy groups preferably have a chain length of 1 to 6 carbon atoms. For example, alkoxy is methoxy, ethoxy, propoxy, isopropoxy, n-butoxy, isobutoxy, sec-butoxy and tert-butoxy, and also the pentyloxy and hexyloxy isomers; preferably methoxy and ethoxy. Haloalkoxy groups preferably have a chain length of 1 to 6 carbon atoms. Haloalkoxy is, e.g., fluoromethoxy, difluoromethoxy, trifluoromethoxy, 2,2,2-trifluoroethoxy, 1,1,2,2- tetrafluoroethoxy, 2-fluoroethoxy, 2-chloroethoxy, 2,2-difluoroethoxy and 2,2,2- trichloroethoxy; preferably difluoromethoxy, 2-chloroethoxy and trifluoromethoxy.
Preferred embodiments within the context of the invention are:
(1) a compound of the formula I, in which Ari and Ar2 are, independently of one another, unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, CrC4alkyl, halo-Cι-C4alkyl, d-dalkoxy, halo-Cι-C4alkoxy, C3-C5cycloalkyl, C3-C5cycloalkyloxy, C3-C5cycloalkylamino, Cι-C5alkylthio, halo-d-C5alkylthio, d-C4alkylamino, di-d-C4alkylamino, Cι-C alkylcarbonyl, halo-d-dalkylcarbonyl, C C4alkoxycarbonyl, d-C4alkylaminocarbonyl and di-C-*-C alkylaminocarbonyl; unsubstituted or mono- or polysubstituted phenylamino; unsubstituted or mono- or polysubstituted phenylcarbonyl; unsubstituted or mono- or polysubstituted phenyl, in which the substituents in each case can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-dalkyl, halo-d-C alkyl, Cι-C4alkoxy, halo- Cι-C4alkoxy, Cι-C4alkylthio and halo-d-C alkyIthio; unsubstituted or mono- or polysubstituted phenoxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-dalkyl, halo-d-dalkyl, d-C4alkoxy, halo-CrC4alkoxy, d-dalkylthio and halo-d-dalkylthio; and unsubstituted or mono- or polysubstituted pyridyloxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, C C4alkyl, halo- d-dalkyl, d-dalkoxy, halo-d-C alkoxy, C C4alkylthio and halo-C C4alkylthio; particularly, independently of one another, unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-C4alkyl, halo-CrC4alkyl, C C4alkoxy, halo- d-C4alkoxy, C3-C5cycloalkyl, C3-C5cycloalkyloxy, C3-C5cycloalkylamino, C C4alkylcarbonyl, halo-d-C4alkylcarbonyl and d-C4alkoxycarbonyl; unsubstituted or mono- or polysubstituted phenylamino; unsubstituted or mono- or polysubstituted phenylcarbonyl; unsubstituted or mono- or polysubstituted phenyl, in which the substituents in each case can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, Cι-C4alkyl, halo-C C4alkyl, C C4aIkoxy and halo-C C4alkoxy; and unsubstituted or mono- or polysubstituted phenoxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, C C4alkyl, halo-d- C4alkyl, d-dalkoxy and halo-d-C4alkoxy; very particularly, independently of one another, unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, cyano, CrC2alkyl, halo-Cι-C2alkyl, CrC2alkoxy, halo- d-C2alkoxy, C3-C4cycloalkyl, C3-C4cycloalkyloxy, C3-C4cycloalkylamino, CrC2alkylcarbonyl, halo-Cι-C2alkylcarbonyl and d-C2alkoxycarbonyl; unsubstituted or mono- or polysubstituted phenylamino; unsubstituted or mono- or polysubstituted phenylcarbonyl; unsubstituted or mono- or polysubstituted phenyl, in which the substituents in each case can be independent of one another and are chosen from the group consisting of halogen, cyano, C-ι-C2alkyl, halo-C C2alkyl, d-C2alkoxy and halo-d-C2alkoxy; and unsubstituted or mono- or polysubstituted phenoxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, cyano, d-dalkyl, halo-CrC2alkyl, d-dalkoxy and halo-C1-C2alkoxy;
(2) a compound of the formula I, in which Ri is hydrogen, d-dalkyl or halo-CrC alkyl; particularly hydrogen or C1-C2alkyl; very particularly hydrogen;
(3) a compound of the formula I, in which R2, R3, R4, R5, R6, R7 and R8 are, independently of one another, hydrogen, halogen, unsubstituted or mono- or polyhalogenated CrC4alkyl, unsubstituted or mono- or polyhalogenated C2-C4alkenyl, unsubstituted or mono- or polyhalogenated C2-C4alkynyl; unsubstituted or mono- or polysubstituted Cι-C4alkoxy, unsubstituted or mono- or polysubstituted halo-d-C4alkoxy, C3-C5cycloalkyl, or unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, cyano, d-dalkyl, halo-C C alkyl, CrC4alkoxy and halo-d-C alkoxy; particularly, independently of one another, hydrogen, unsubstituted or mono- or polyhalogenated d-C4alkyl, C3-C5cycloalkyl, or unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, d-C2alkyl or halo-C dalkyl; very particularly, independently of one another, hydrogen, d-dalkyl or C3-C5cycloalkyl;
(4) a compound of the formula I, in which X is C(R3)(R4)-C(R5)(R6); (5) a compound of the formula I, in which Ar-* and Ar2 are, independently of one another, unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, C C alkyl, halo-C C -alkyl, d-dalkoxy, halo-Cι-C4alkoxy, C3-C5cycloalkyl, C3-C5cycloalkyloxy, C3-C5cycloalkylamino, CrC5alkylthio, halo-C-ι-C5alkylthio, Cι-C4alkylamino, di-Cι-C4alkylamino, Cι-C4alkylcarbonyl, halo-d-C alkylcarbonyl, Cι-C4alkoxycarbonyl, Cι-C4alkylaminocarbonyl and di-Cι-C alkylaminocarbonyl; unsubstituted or mono- or polysubstituted phenylamino; unsubstituted or mono- or polysubstituted phenylcarbonyl; unsubstituted or mono- or polysubstituted phenyl, in which the substituents in each case can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-C4alkyl, halo-C C4alkyl, Cι-C4alkoxy, halo- C dalkoxy, d-C4alkyIthio and halo-d-C4alkyIthio; unsubstituted or mono- or polysubstituted phenoxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-C4alkyl, halo-C C4alkyl, Crdalkoxy, halo-C C alkoxy, d-C4alkylthio and halo-C C4alkylthio; and unsubstituted or mono- or polysubstituted pyridyloxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-C alkyl, halo- Crdalkyl, C C4alkoxy, halo-CrC4alkoxy, d-dalkylthio and halo-C C4alkylthio;
Rt is hydrogen, d-dalkyl or halo-d-C4alkyl;
R2, 3. R4, R5, Re, R7 and R8 are, independently of one another, hydrogen, halogen, unsubstituted or mono- or polyhalogenated d-dalkyl, unsubstituted or mono- or polyhalogenated C2-C4alkenyl, unsubstituted or mono- or polyhalogenated C2-C alkynyl; unsubstituted or mono- or polysubstituted d-C4alkoxy, unsubstituted or mono- or polysubstituted halo-d-C4alkoxy, C3-C5cycloalkyl, or unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, cyano, d-C alkyl, halo-d-dalkyl, Cι- C4alkoxy and halo-C C4alkoxy; and
X is C(R3)(R4)-C(R5)(R6);
(6) a compound of the formula I, in which An and Ar2 are particularly, independently of one another, unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-C alkyl, halo-CrC4aIkyl, d-dalkoxy, halo-CrC4alkoxy, C3-C5cycloalkyl, C3-C5cycloalkyloxy, C3-C5cycloalkylamino, Cι-C4alkylcarbonyl, halo-d-C4alkylcarbonyl and Cι-C4alkoxycarbonyl; unsubstituted or mono- or polysubstituted phenylamino; unsubstituted or mono- or polysubstituted phenylcarbonyl; unsubstituted or mono- or polysubstituted phenyl, in which the substituents in each case can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-dalkyl, halo-CrC4alkyl, d-dalkoxy and halo-C C4alkoxy; and unsubstituted or mono- or polysubstituted phenoxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, C C4alkyl, halo-C C4alkyl, Cι-C4alkoxy and halo- d-dalkoxy;
Ri is hydrogen or d-C2alkyl;
R2, R3, R4, R5, Re, R7 and R8 are, independently of one another, hydrogen, unsubstituted or mono- or polyhalogenated d-C alkyl, C3-C5cycloalkyl, or unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, d-dalkyl or halo-C C4alkyl; and
X is C(R3)(R4)-C(R5)(R6);
(7) a compound of the formula I, in which An and Ar2 are, independently of one another, unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, cyano, d-dalkyl, halo-d-C2alkyl, d-dalkoxy, halo-C-ι-C2alkoxy, C3-C4cycloalkyl, C3-C cyclo- alkyloxy, C3-C4cycloalkylamino, d-C2alkylcarbonyl, halo-d-dalkylcarbonyl and d-dalkoxycarbonyl; unsubstituted or mono- or polysubstituted phenylamino; unsubstituted or mono- or polysubstituted phenylcarbonyl; unsubstituted or mono- or polysubstituted phenyl, in which the substituents in each case can be independent of one another and are chosen from the group consisting of halogen, cyano, d-dalkyl, halo-d-C2alkyl, d- dalkoxy and halo-d-C2alkoxy; and unsubstituted or mono- or polysubstituted phenoxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, cyano, d-dalkyl, halo-d-C2alkyl, d-dalkoxy and halo-d-dalkoxy;
Ri is hydrogen;
R2, R3, R4, R5, Re, R7 and R8 are, independently of one another, hydrogen, d-C2alkyl or C3-C5cycloalkyl; and
X is C(R3)(R4)-C(R5)(R6). The compounds of the formula I listed in Table 1 are particularly preferred within the context of the invention and the compounds of the formula I mentioned in the synthetic examples are very particularly preferred.
A further subject-matter of the invention is the process for the preparation of the compounds of the formula I, in each case in the free form or in the salt form, e.g. which comprises the reaction of a compound of the formula
Figure imgf000010_0001
which is known or can be prepared by analogy to relevant known compounds and in which Ri, R2, X and Ar2 are as defined above in the formula I, with a compound of the formula
Figure imgf000010_0002
which is known or can be prepared by analogy to relevant known compounds and in which Aη is as defined above in the formula I and Q is a leaving group, if desired in the presence of a basic catalyst, and in each case, if desired, the conversion of a compound of the formula I obtainable according to the process or in another way, in each case in the free form or in the salt form, to another compound of the formula I, the separation of a mixture of isomers obtainable according to the process and the isolation of the desired isomer and/or the conversion of a free compound of the formula I obtainable according to the process to the salt or the conversion of a salt of a compound of the formula I obtainable according to the process to the free compound of the formula I or to another salt.
That which has been said above for salts of compounds I applies analogously to starting materials mentioned hereinabove and hereinafter with regard to the salts thereof.
The reactants can be reacted with one another as such, i.e. without addition of a solvent or diluent, e.g. in the molten form. For the most part, however, it is advantageous to add an inert solvent or diluent or a mixture thereof. Mention may be made, as examples of such solvents or diluents, of: aromatic, aliphatic and alicyclic hydrocarbons and halogenated hydrocarbons, such as benzene, toluene, xylene, mesitylene, tetralin, chlorobenzene, dichlorobenzene, bromobenzene, petroleum ether, hexane, cyclohexane, dichloromethane, trichloromethane, tetrachloromethane, dichloroethane, trichloroethene or tetrachloroethene; ethers, such as diethyl ether, dipropyl ether, diisopropyl ether, dibutyl ether, tert-butyl methyl ether, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol dimethyl ether, dimethoxydiethyl ether, tetrahydrofuran or dioxane; ketones, such as acetone, methyl ethyl ketone or methyl isobutyl ketone; amides, such as N,N-dimethyl- formamide, N,N-diethylformamide, N,N-dimethylacetamide, N-methylpyrrolidone or hexamethylphosphoramide; nitriles, such as acetonitrile or propionitrile; and sulfoxides, such as dimethyl sulfoxide.
Preferred leaving groups Q are halogens, tosylates, mesylates and triflates, particularly preferably halogens, especially chlorine.
Suitable bases for facilitating the reaction are, e.g., alkali metal or alkaline earth metal hydroxides, hydrides, amides, alkoxides, acetates, carbonates, dialkylamides or alkyl- silylamides, alkylamines, alkylenediamines, if desired N-alkylated and saturated or unsaturated, cycloalkylamines, basic heterocycles, ammonium hydroxides and carbocyclic amines. Mention may be made, by way of examples, of sodium hydroxide, sodium hydride, sodamide, sodium methoxide, sodium acetate, sodium carbonate, potassium t-butoxide, potassium hydroxide, potassium carbonate, potassium hydride, lithium diisopropylamide, potassium bis(trimethylsilyl)amide, calcium hydride, triethylamine, diisopropylethylamine, triethylenediamine, cyclohexylamine, N-cyclohexyl-N,N-dimethylamine, N,N-diethylaniline, pyridine, 4-(N,N-dimethylamino)pyridine, quinuclidine, N-methylmorpholine, benzyltrimethylammonium hydroxide and 1 ,5-diazabicyclo[5.4.0]undec-5-ene (DBU). Diisopropylethylamine and 4-(N,N-dimethylamino)pyridine are preferred.
The reaction is advantageously carried out at a temperature from approximately 0°C to approximately +100°C, preferably from approximately 10°C to approximately +40°C.
In a preferred process, a compound of the formula II is reacted at ambient temperature in a halogenated hydrocarbon, preferably dichloromethane, with a compound of the formula III in the presence of a base, preferably a mixture of diisopropylethylamine and 4-(N,N- dimethylamino)pyridine.
A further subject-matter of the invention is the process for the preparation of the compounds of the formula II, in each case in the free form or in the salt form, e.g. which comprises the reaction of a compound of the formula
Figure imgf000011_0001
which is known or can be prepared by analogy to relevant known compounds and in which R2, X and Ar2 are as defined in formula I, with an inorganic or organic cyanide and a compound of the formula R NH2, which is known or can be prepared by analogy to relevant known compounds and in which Ri is as defined in the formula I, and in each case, if desired, the conversion of a compound of the formula II obtainable according to the process or in another way, in each case in the free form or in the salt form, to another compound of the formula II, the separation of a mixture of isomers obtainable according to the process and the isolation of the desired isomer and/or the conversion of a free compound of the formula II obtainable according to the process to a salt or the conversion of a salt of a compound of the formula II obtainable according to the process to the free compound of the formula II or to another salt.
Suitable cyanides are sodium cyanide, potassium cyanide, trimethylsilyl cyanide and acetone cyanohydrin.
The general method for the reaction of carbonyl compounds, for example of the formula IV, with cyanides and amines, for example of the formula R6-NH2, is known as a Strecker reaction, for example in Organic Synthesis Coll. Vol. 3, 88 (1973).
Salts of compounds I can be prepared in a way known per se. Thus, for example, acid addition salts of compound I are obtained by treatment with a suitable acid or a suitable ion- exchange reagent and salts with bases are obtained by treatment with a suitable base or a suitable ion-exchange reagent.
Salts of compounds I can be converted in the usual way to the free compounds I, acid addition salts, e.g. by treatment with a suitable basic agent or a suitable ion exchange reagent, and salts with bases, e.g. by treatment with a suitable acid or a suitable ion- exchange reagent.
Salts of compounds I can be changed in a way known per se to other salts of compounds I, acid addition salts for example to other acid addition salts, e.g. by treatment of a salt of an inorganic acid, such as a hydrochloride, with a suitable metal salt, such as a sodium, barium or silver salt, of an acid, e.g. with silver acetate, in a suitable solvent, in which an inorganic salt, e.g. silver chloride, being formed is insoluble and for this reason precipitates from the reaction mixture.
According to the method or reaction conditions, the compounds I with salt-forming properties can be obtained in the free form or in the form of salts. The compounds I can also be obtained in the form of their hydrates and/or can incorporate other solvents, which might, for example, be used in the crystallization of compounds existing in the solid form.
The compounds I can exist as optical and/or geometrical isomers or mixtures thereof. The invention relates both to the pure isomers and to all possible mixtures of isomers and is to be correspondingly understood in each case heretofore and hereinafter, even if stereochemical details are not specifically referred to in every case.
Mixtures of diastereoisomers and mixtures of racemates of compounds I obtainable according to the process - depending on the choice of the starting materials and operating methods - or otherwise obtainable can be separated in a known way into the pure diastereoisomers or racemates on the basis of the physicochemical differences of the components, for example by fractional crystallization, distillation and/or chromatography.
Correspondingly obtainable mixtures of enantiomers, such as racemates, can be resolved into the optical isomers by known methods, for example by recrystallization from an optically active solvent, by chromatography on chiral adsorbents, e.g. high performance liquid chromatography (HPLC) on acetylcellulose, with the help of suitable microorganisms, by cleavage with specific immobilized enzymes, via the formation of inclusion complexes, e.g. by using chiral crown ethers, in which only one enantiomer is complexed.
In addition to through separation of the corresponding mixtures of isomers, pure diastereoisomers or enantiomers according to the invention can also be obtained through generally known methods of diastereoselective or enantioselective synthesis, e.g. by carrying out the process according to the invention with educts with correspondingly suitable stereochemistry.
Advantageously, the biologically most effective isomer, e.g. enantiomer, or mixture of isomers, e.g. mixture of enantiomers, is isolated or synthesized each time, provided that the individual components have different biological activity.
In the process of the present invention, use is preferably made of such starting materials and intermediates which result in the compounds I described at the beginning as particularly valuable.
The invention relates in particular to the preparation process described in the examples.
Starting materials and intermediates used according to the invention for the preparation of the compounds I which are novel, their use and processes for their preparation likewise form a subject-matter of the invention.
The compounds I according to the invention are characterized by a particularly broad activity spectrum and are valuable active ingredients in the field of pest control which are well tolerated by warm-blooded species, fish and plants, including in particular for controlling endo- and ecto parasites which parasitize animals.
In the context of the present invention, the term "ectoparasites" is understood to mean, in particular, insects, mites and ticks. This includes insects of the orders: Lepidoptera, Coleoptera, Homoptera, Heteroptera, Diptera, Thysanoptera, Orthoptera, Anoplura, Siphonaptera, Mallophaga, Thysanura, Isoptera, Psocoptera and Hymenoptera. However, reference may in particular be made to ectoparasites which are a nuisance to man or animals and which transmit pathogens, for example flies, such as Musca domestica, Musca vetustissima, Musca autumnalis, Fannia canicularis, Sarcophaga carnaria, Lucilia cuprina, Hypoderma bovis, Hypoderma lineatum, Chrysomyia chloropyga, Dermatobia hominis, Cochliomyia hominivorax, Gasterophilus intestinalis, Oestrus ovis, Stomoxys calcitrans, Haematobia irritans, and mosquitoes (Nematocera), such as Culicidae, Simuliidae, Psychodidae, but also bloodsucking parasites, for example fleas, such as Ctenocephalides felis and Ctenocephalides canis (cat and dog fleas), Xenopsylla cheopis, Pulex irritans, Dermatophilus penetrans, lice, such as Damalina ovis, Pediculus humanis, stable flies and horse flies (Tabanidae), Haematopota spp., such as Haematopota pluvialis, Tabanidea spp., such as Tabanus nigrovittatus, Chrysopsinae spp., such as Chrysops caecutiens, tsetse flies, such as Glossinia species, biting insects, in particular cockroaches, such as Blatella germanica, Blatta orientalis, Periplaneta americana, mites, such as Dermanyssus gallinae, Sarcoptes scabiei, Psoroptes ovis and Psorergates spp., and last but not least ticks. The latter belong to the order Acarina. Known representatives of ticks are, e.g., Boophilus, Amblyomma, Anocentor, Dermacentor, Haemaphysalis, Hyalomma, Ixodes, Rhipicentor, Margaropus, Rhipicephalus, Argas, Otobius and Ornithodoros and the like, which preferably infest warm-blooded animals, including farm animals, such as cows, pigs, sheep and goats, poultry, such as chickens, turkeys and geese, fur-bearing animals, such as mink, foxes, chinchillas, rabbits and the like, and pets, such as cats and dogs, but also man. The compounds I according to the invention are also effective against all or individual development stages of normally sensitive but also of resistant animal pests, such as insects and representatives of the order Acarina. The insecticidal, ovicidal and/or acaricidal action of the active ingredients according to the invention may in the process be displayed directly, i.e. in killing the pests, immediately or only after some time, for example during moulting, or their eggs, or indirectly, e.g. in reduced egg laying and/or in a reduced hatching rate, in which the good action corresponds to a kill rate (mortality) of at least 50 to 60%.
The compounds I can also be used against hygiene pests, in particular of the order Diptera with the families Sarcophagidae, Anophilidae and Culicidae; of the orders Orthoptera, Dictyoptera (e.g. the family Blattidae) and Hymenoptera (e.g. the family Formicidae).
The compounds I also have lasting activity in the case of phytoparasitic mites and insects. In the case of spider mites of the order Acarina, they are active against eggs, nymphs and adults of Tetranychidae (Tetranychus spp. and Panonychus spp.).
They are highly active in the case of the sucking insects of the order Homoptera, in particular against pests of the families Aphididae, Delphacidae, Cicadellidae, Psyllidae, Loccidae, Diaspididae and Eriophydidae (e.g. citrus rust mite); of the orders Hemiptera, Heteroptera and Thysanoptera, and in the case of the phytophagous insects of the orders Lepidoptera, Coleoptera, Diptera and Orthoptera.
They are also suitable as soil insecticides against pests in the soil.
The compounds of the formula I are accordingly active against all development stages of sucking and feeding insects on crops such as cereals, cotton, rice, maize, soya beans, potatoes, vegetables, fruit, tobacco, hops, citrus fruit, avocados and others.
The compounds of the formula I are also active against plant nematodes of the genera Meloidogyne, Heterodera, Pratylenchus, Ditylenchus, Radopholus, Rizoglyphus and others.
The compounds are particularly active against helminths, among which the endoparasitic nematodes and trematodes can be the cause of serious diseases in mammals and poultry, e.g. in sheep, pigs, goats, cattle, horses, donkeys, dogs, cats, guinea pigs and ornamental birds. Typical nematodes of this indication are: Haemonchus, Trichostrongylus, Ostertagia, Nematodirus, Cooperia, Ascaris, Bunostonum, Oesophagostonum, Chabertia, Trichuris, Strongylus, Trichonema, Dictyocaulus, Capillaria, Heterakis, Toxocara, Ascaridia, Oxyuris, Ancylostoma, Uncinaria, Toxascaris and Parascaris. Mention may specifically be made, among the trematodes, of the family of the Fasciolideae, in particular Fasciola hepatica. The particular advantage of the compounds of the formula I is their activity against such parasites, which are resistant to benzimidazole-based active ingredients.
Certain species of the genera Nematodirus, Cooperia and Oesophagostonum attack the intestinal tract of the host animal, while others of the genera Haemonchus and Ostertagia parasitize in the stomach and others of the genus Dictyocaulus parasitize in lung tissue. Parasites of the families Filariidae and Setariidae are found in internal cell tissue and in organs, e.g. the heart, blood vessels, lymph vessels and subcutaneous tissue. Mention may particularly be made here of the dog heartworm, Dirofilaria immitis. The compounds of the formula I are highly effective against these parasites.
The pests which can be controlled with the compounds of the formula I also include, from the class Cestoda (tapeworms), the families Mesocestoidae, in particular the genus Mesocestoides, especially M. lineatus; Dilepididae, in particular Dipylidium caninum, Joyeuxiella spp., especially Joyeuxiella pasquali, and Diplopylidium spp.; and Taeniidae, in particular Taenia pisiformis, Taenia cervi, Taenia ovis, Taneia hydatigena, Taenia multiceps, Taenia taeniaeformis, Taenia serialis and Echinocuccus spp., particularly preferably Taneia hydatigena, Taenia ovis, Taenia multiceps, Taenia serialis; Echinocuccus granulosus and Echinococcus granulosus and Echinococcus multilocularis, and Multiceps multiceps.
In a very particularly preferred way, Taenia hydatigena, T. pisiformis, T. ovis, T. taeniaeformis, Multiceps multiceps, Joyeuxiella pasquali, Dipylidium caninum, Mesocestoides spp., Echinococcus granulosus and E. multilocularis are controlled simultaneously with Dirofilaria immitis, Ancylostoma spp., Toxocara spp. and/or Trichuris vulpis on or in dogs and cats. Also in a preferred way, Ctenocephalides felis and/or C.canis are controlled simultaneously with the abovementioned nematodes and cestodes.
The compounds of the formula I are also suitable for controlling parasites which are pathogenic to man, among which may be mentioned, as typical representatives occurring in the digestive tract, those of the genera Ancylostoma, Necator, Ascaris, Strongyloides, Trichinella, Capillaria, Trichuris and Enterobius. The compounds of the present invention are also active against parasites of the genera Wuchereria, Brugia, Onchocerca and Loa from the family of the Filariidae, which occur in the blood, in tissue and in various organs, and also against Dracunculus and parasites of the genera Strongyloides and Trichinella, which specifically infect the gastrointestinal tract.
In addition, the compounds of the formula I are also active against harmful fungi which cause disease in plants and in man and animals.
The good pesticidal action of the compounds of the formula I according to the invention corresponds to a kill rate (mortality) of at least 50-60% of the pests mentioned. In particular, the compounds of the formula I are characterized by an extraordinarily long duration of action.
The compounds of the formula I are used as such or preferably together with the auxiliaries conventional in formulation technology and can accordingly be processed in a known way, for example to emulsifiable concentrates, directly dilutable solutions, dilute emulsions, soluble powders, granules and also encapsulations in polymer substances. The application methods as well as the compositions are chosen in accordance with the intended aims and the prevailing circumstances.
The formulation, i.e. the compositions, preparations or combinations comprising the active ingredient of the formula I, or combinations of these active ingredients with other active ingredients, and, if desired, a solid or liquid additive, is prepared in a known way, for example by intimately mixing and/or grinding the active ingredients with extenders, for example with solvents, solid carriers and, if desired, surface-active compounds (surfactants).
The following are possible as solvents: alcohols, such as ethanol, propanol or butanol, and glycols, and their ethers and esters, such as propylene glycol, dipropylene glycol ether, ethylene glycol, ethylene glycol monomethyl ether or ethylene glycol monoethyl ether, ketones, such as cyclohexanone, isophorone or diacetone alcohol, strongly polar solvents, such as N-methyl-2-pyrrolidone, dimethyl sulfoxide, dimethylformamide or water, vegetable oils, such as rapeseed oil, castor oil, coconut oil or soybean oil; and, if desired, silicone oils.
Preferred application forms for use in warm-blooded animals for controlling helminths include solutions, emulsions, suspensions (drenches), feed additives, powders, tablets, including effervescent tablets, boluses, capsules, microencapsulations and pour-on formulations, care having to be taken over the physiological compatibility of the formulation auxiliaries. Suitable binders for tablets and boluses are chemically modified polymeric natural products which are soluble in water or alcohol, such as starch, cellulose or protein derivatives (e.g., methylcellulose, carboxymethylcellulose, ethylhydroxyethylcellulose, proteins, such as zein, gelatin, and the like), and synthetic polymers, for example polyvinyl alcohol, polyvinylpyrrolidone, and the like. Tablets also comprise fillers (e.g., starch, microcrystalline cellulose, sugar, lactose, and the like), lubricants and disintegrating agents.
If the anthelmintic compositions are present in the form of feed concentrates, then high- performance feed, feed cereals or protein concentrates, for example, are used as carriers. Such feed concentrates or compositions can, in addition to the active ingredients, also comprise additives, vitamins, antibiotics, chemotherapeutics, or other pesticides, mainly bacteriostats, fungistats, coccidiostats, or also hormone preparations, anabolics or substances which promote growth, influence the quality of meat from animals for slaughter or are useful to the organism in another way. If the compositions or the active ingredients of the formula I present therein are added directly to the feed or to the drinking water for the animals, the finished feed or the finished drinking water comprises the active ingredients preferably in a concentration from approximately 0.0005 to 0.02% by weight (5-200 ppm).
The compounds of the formula I according to the invention can be used alone or in combination with other biocides. They can, e.g., be combined with pesticides possessing the same direction of action, in order to enhance the action, or can be combined with substances possessing another direction of action, in order to broaden the activity spectrum. It may also make sense to add substances which repel, known as repellents. If it is desired to expand the activity spectrum with regard to endoparasites, for example worms, the compounds of the formula I are appropriately combined with substances having endoparasiticidal properties. They can also, naturally, be used in combination with antibacterial compositions. Since the compounds of the formula I represent adulticides, i.e. since they are effective in particular against the adult stages of the target parasites, the addition of pesticides which are more likely to attack the juvenile stages of parasites can be highly advantageous. In this way, most of those parasites causing great economic damage are namely included. In addition, a substantial contribution is also made as well to avoiding the formation of resistance. Some combinations can also lead to synergistic effects, i.e. that the total amount of active substance consumed can be reduced, which is desirable from an ecological viewpoint. Preferred groups of combination participants and particularly preferred combination participants are mentioned subsequently, which combinations can, in addition to a compound of the formula I, comprise one or more of these participants.
Suitable participants in the mixture include biocides, for example the insecticides and acaricides with different mechanisms of action mentioned subsequently and sufficiently known to a person skilled in the art, for example chitin synthesis inhibitors, growth regulators; active ingredients which act as juvenile hormones; active ingredients which act as adulticides; broad spectrum insecticides, broad spectrum acaricides and nematicides; but also the sufficiently known anthelmintics and substances which repel insects and/or members of the Acarina, known as repellents or detachers.
Nonlimiting examples of suitable insecticides and acaricides are:
1. Abamectin 23. Bromophos E 45. Cyhexatin
2. AC 303 630 24. Bufencarb 46. D 2341
3. Acephate 25. Buprofezin 47. Deltamethrin
4. Acrinathrin 26. Butocarboxim 48. Demeton M
5. Alanycarb 27. Butylpyridaben 49. Demeton S
6. Aldicarb 28. Cadusafos 50. Demeton-S-methyl
7. oc-Cypermethrin 29. Carbaryl 51. Dibutylaminothio
8. Alphamethrin 30. Carbofuran 52. Dichlofenthion
9. Amitraz 31. Carbophenothion 53. Dicliphos
10. Avermectin B-* 32. Cartap 54. Diethion
11 . AZ 60541 33. Cloethocarb 55. Diflubenzuron
12 . Azinphos E 34. Chlorethoxyfos 56. Dimethoate
13. Azinphos-methyl 35. Chlorfenapyr 57. Dimethylvinphos
14 . Azocyclotin 36. Chlorfluazuron 58. Dioxathion
15 . Bacillus subtil, toxin 37. Chlormephos 59. DPX-MP062
16. Bendiocarb 38. Chlorpyrifos 60. Edifenphos
17. Benfuracarb 39. Cis-Resmethrin 61. Emamectin
18. Bensultap 40. Clocythrin 62. Endosulfan
19 . β-Cyfluthrin 41. Clofentezine 63. Esfenvalerate
20. Bifenthrin 42. Cyanophos 64. Ethiofencarb
21 . BPMC 43. Cycloprothrin 65. Ethion
22. Brofenprox 44. Cyfluthrin 66. Ethofenprox 67. Ethoprophos 99. Insect-active 129. Parathion-methyl
68. Etrimphos nematodes 130.Permethrin
69. Fenamiphos 100. Insect-active 131.Phenthoate
70. Fenazaquin viruses 132.Phorate
71. Fenbutatin oxide 101.lprobenfos 133.Phosalone
72. Fenitrothion 102.lsofenphos 134.Phosmet
73. Fenobucarb 103.lsoprocarb 135.Phoxim
74. Fenothiocarb 104. Isoxathion 136.Pirimicarb
75. Fenoxycarb 105.lvermectin 137.Pirimiphos E
76. Fenpropathrin 106.λ-Cyhalothrin 138.Pirimiphos M
77. Fenpyrad 107.Lufenuron 139.Promecarb
78. Fenpyroximate 108.Malathion 140.Propaphos
79. Fenthion 109.Mecarbam 141.Propoxur
80. Fenvalerate HO.Mesulfenphos 142.Prothiofos
81. Fipronil m .Metaldehyde 143.Prothoate
82. Fluazinam 112. Methamidophos 144.Pyraclophos
83. Fluazuron 113.Methiocarb 145. Pyradaphenthion
84. Flucycloxuron 114. Methomyl 146.Pyresmethrin
85. Flucythrinate 115.Methoprene 147. Pyrethrum
86. Flufenoxuron 116.Metolcarb 148. Pyridaben
87. Flufenprox 117.Mevinphos 149.Pyrimidifen
88. Fonophos 118.Milbemectin 150.Pyriproxyfen
89. Formothion 119.Moxidectin 151.RH-5992
90. Fosthiazate 120.Naled 152.RH-2485
91. Fubfenprox 121. NC 184 153.Salithion
92. HCH 122. NI-25, Acetamiprid 154.Sebufos
93. Heptenophos 123.Nitenpyram 155.Silafluofen
94. Hexaflumuron 124.Omethoate 156.Spinosad
95. Hexythiazox 125.Oxamyl 157.Sulfotep
96. Hydroprene 126.Oxydemeton M 158.Sulprofos
97. Imidacloprid 127.Oxydeprofos 159.Tebufenozide
98. Insect-active fungi 128.Parathion 160.Tebufenpyrad 161.Tebupirimphos 171.Thionazin 181.Vamidothion
162.Teflubenzuron 172.Thuringiensin 182.XMC (3,5-xylyl
163.Tefluthrin 173.Tralomethrin methylcarbamate)
164.Temephos 174.Triarthene 183.Xylylcarb
165.Terbam 175.Triazamate 184. Yl 5301/5302
166.Terbufos 176.Triazophos 185.ζ-Cypermethrin
167.Tetrachlorvinphos 177.Triazuron 186.Zetamethrin
168.Thiafenox 178.Trichlorfon
169.Thiodicarb 179.TrifIumuron
170.Thiofanox 180.Trimethacarb
Nonlimiting examples of suitable anthelmintics are mentioned subsequently, in which some representatives, in addition to the anthelmintic activity, also have an insecticidal and acaricidal activity and are already included in the above list:
(A1 ) Praziquantel = 2-Cyclohexylcarbonyl-4-oxo-1 ,2,3,6,7,11 b-hexahydro-4H-pyrazino[2,1 - c soquinoline (A2) Closantel = 3,5-Diiodo-N-[5-chloro-2-methyl-4-(α-cyano-4-chIorobenzyl)phenyl]- salicylamide (A3) Triclabendazole = 5-Chloro-6-(2,3-dichlorophenoxy)-2-methylthio-1 H-benzimidazole (A4) Levamisole = -(-)-2,3,5,6-Tetrahydro-6-phenylimidazo[2,1-b]thiazole (A5) Mebendazole = Methyl 5-benzoyl-1 H-benzimidazol-2-ylcarbamate (A6) Omphalotin = a macrocyclic fermentation product from the fungus Omphalotus olearius disclosed in WO 97/20857 (A7) Abamectin = Avermectin B1 (A8) Ivermectin = 22,23-Dihydroavermectin B1 (A9) Moxidectin = 5-O-Demethyl-28-deoxy-25-(1,3-dimethyl-1-butenyl)-6,28-epoxy-23-
(methoxyimino)milbemycin B (A10) Doramectin = 25-Cyclohexyl-5-O-demethyl-25-de(1-methylpropyl)avermectin A1a (A11 ) Milbemectin = Mixture of Milbemycin A3 and Milbemycin A4 (A12) Milbemycin oxime = 5-Oxime of Milbemectin
Nonlimiting examples of suitable repelling substances (repellents or detachers) are:
(R1) DEFT (N,N-Diethyi-m-toluamide) (R2) KBR 3023 N-Butyl-2-oxycarbonyl-2-(2-hydroxyethyl)piperidine
(R3) Cvmiazole = N-2,3-Dihydro-3-methyl-1 ,3-thiazol-2-ylidene-2,4-xylidine
The participants in the mixture which are mentioned are very well known to a person skilled in the art. Most are described in the various editions of The Pesticide Manual, The British Crop Protection Council, London, others in the various editions of The Merck Index, Merck & Co. Inc., Rahway, New Jersey, USA, or in the patent literature. The following listing is accordingly restricted to a few references by way of examples.
(I) 2-Methyl-2-(methylthio)propionaldehyde O-methylcarbamoyloxime (Aldicarb), from The Pesticide Manual, 11th Ed. (1997), The British Crop Protection Council, London, page 26;
(II) S-(3,4-Dihydro-4-oxobenzo[αf][1 ,2,3]triazin-3-ylmethyl) O,O-dimethyl phosphorodithioate (Azinphos-methyl), from The Pesticide Manual, 11,hEd. (1997), The British Crop Protection Council, London, page 67;
(III) Ethyl N-[2,3-dihydro-2,2-dimethylbenzofuran-7-yloxycarbonyl(methyl)aminothio]-N- isopropyl-β-alaninate (Benfuracarb), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 96;
(IV) 2-Methylbiphenyl-3-ylmethyl (Z)-(1 flS)-c/s-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2- dimethylcyclopropanecarboxylate (Bifenthrin), from The Pesticide Manual, 11lhEd. (1997), The British Crop Protection Council, London, page 118;
(V) 2-tert-Butylimino-3-isopropyl-5-phenyl-1 ,3,5-thiadiazinan-4-one (Buprofezin), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 157;
(VI) 2,3-Dihydro-2,2-dimethylbenzofuran-7-yl methylcarbamate (Carbofuran), from The Pesticide Manual, 11,hEd. (1997), The British Crop Protection Council, London, page 186;
(VII) 2,3-Dihydro-2,2-dimethylbenzofuran-7-yl (dibutylaminothio)methylcarbamate
(Carbosulfan), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection
Council, London, page 188; (VIII) S,S'-(2-Dimethylaminotrimethylene) bis(thiocarbamate) (Cartap), from The Pesticide
Manual, 11,hEd. (1997), The British Crop Protection Council, London, page 193; (IX) 1-[3,5-Dichloro-4-(3-chloro-5-trifluoromethyl-2-pyridyloxy)phenyl]-3-(2,6- difluorobenzoyI)-urea (Chlorfluazuron), from The Pesticide Manual, 11thEd. (1997), The
British Crop Protection Council, London, page 213; (X) 0,0-Diethyl 0-3,5,6-trichloro-2-pyridyl phosphorothioate (Chloφyrifos), from The Pesticide Manual, 11,hEd. (1997), The British Crop Protection Council, London, page 235;
(XI) ( ?S)-α-Cyano-4-fluoro-3-phenoxybenzyl (1 RS,3flS;1 HS,3RS)-3-(2,2-dichlorovinyl)-2,2- di-methylcyclopropanecarboxylate (Cyfluthrin), from The Pesticide Manual, 11,hEd.
(1997), The British Crop Protection Council, London, page 293;
(XII) Mixture of (S)-α-cyano-3-phenoxybenzyl (Z)-(1 f?,3fl)-3-(2-chloro-3,3,3-trifluoro- propenyl)-2,2-dimethylcyclopropanecarboxylate and (ff)- -cyano-3-phenoxybenzyl (Z)- (1 S,3S)-3-(2-chloro-3,3,3-trifluoropropenyl)-2,2-dimethylcyclopropanecarboxylate (Lambda-Cyhalothrin), from The Pesticide Manual, 11lhEd. (1997), The British Crop Protection Council, London, page 300;
(XIII) Racemate consisting of (S)- -cyano-3-phenoxybenzyl (1 f?,3fl)-3-(2,2-dichlorovinyl)- 2,2-dimethylcyclopropanecarboxylate and (f?)-α-cyano-3-phenoxybenzyl(1 S,3S)-3-(2,2- dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate (Alpha-cypermethrin), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 308;
(XIV) A mixture of the stereoisomers of (S)- -cyano-3-phenoxybenzyl (1 RS,3RS, RS,3RS)~ 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate (zeta-Cypermethrin), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 314;
(XV) (S)-α-Cyano-3-phenoxybenzyl (1 f?,3 ?)-3-(2,2-dibromovinyl)-2,2-dimethylcyclopropane- carboxylate (Deltamethrin), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 344;
(XVI) 1 -(4-Chlorophenyl)-3-(2,6-difluorobenzoyl)urea (Dif lubenzuron), from The Pesticide Manual, 11,hEd. (1997), The British Crop Protection Council, London, page 395;
(XVII) (1 ,4,5,6,7,7-Hexachloro-8,9,10-trinorbom-5-en-2,3-ylenebismethylene)sulfite (Endosulfan), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 459;
(XVIII) α-Ethylthio-o-tolyl methylcarbamate (Ethiofencarb), from The Pesticide Manual, 11 hEd. (1997), The British Crop Protection Council, London, page 479;
(XIX) 0,0-Dimethyl O-4-nitro-m-tolyl phosphorothioate (Fenitrothion), from The Pesticide Manual, 11,hEd. (1997), The British Crop Protection Council, London, page 514; (XX) 2-seo-Butylphenyl methylcarbamate (Fenobucarb), from The Pesticide Manual, 11,hEd. (1997), The British Crop Protection Council, London, page 516;
(XXI) (f?S)-α-Cyano-3-phenoxybenzyl (/ifS)-2-(4-chlorophenyl)-3-methylbutyrate (Fenvalerate), from The Pesticide Manual, 11,hEd. (1997), The British Crop Protection Council, London, page 539;
(XXII) S-[Formyl(methyl)carbamoylmethyl] 0,0-dimethyl phosphorodithioate (Formothion), from The Pesticide Manual, 11,hEd. (1997), The British Crop Protection Council, London, page 625;
(XXIII) 4-Methylthio-3,5-xylyl methylcarbamate (Methiocarb), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 813;
(XXIV) 7-Chlorobicyclo[3.2.0]hepta-2,6-dien-6-yl dimethyl phosphate (Heptenophos), from The Pesticide Manual, 11,hEd. (1997), The British Crop Protection Council, London, page 670;
(XXV) 1 -(6-Chloro-3-pyridyImethyl)-Λ/-nitroimidazolidin-2-ylideneamine (Imidacloprid), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 706;
(XXVI) 2-lsopropylphenyl methylcarbamate (Isoprocarb), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 729;
(XXVII) 0,S-Dimethyl phosphoramidothioate (Methamidophos), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 808;
(XXVIII) S-Methyl Λ/-(methylcarbamoyloxy)thioacetimidate (Methomyl), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 815;
(XXIX) Methyl 3-(dimethoxyphosphinoyloxy)but-2-enoate (Mevinphos), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 844;
(XXX) 0,0-Diethyl O-4-nitrophenyl phosphorothioate (Parathion), from The Pesticide Manual, 11,hEd. (1997), The British Crop Protection Council, London, page 926;
(XXXI) 0,0-Dimethyl O-4-nitrophenyl phosphorothioate (Parathion-methyl), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 928;
(XXXII) S-6-Chloro-2,3-dihydro-2-oxo-1 ,3-benzoxazol-3-ylmethyl 0,0-diethyl phosphorodithioate (Phosalone), from The Pesticide Manual, 11,hEd. (1997), The British Crop Protection Council, London, page 963; (XXXIII) 2-Dimethylamino-5,6-dimethylpyrimidin-4-yl dimethylcarbamate (Pirimicarb), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 985;
(XXXIV) 2-lsopropoxyphenyl methylcarbamate (Propoxur), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 1036;
(XXXV) 1 -(3,5-Dichloro-2,4-dif luorophenyl)-3-(2,6-difluorobenzoyl)urea (Tef lubenzuron), from The Pesticide Manual, 11,hEd. (1997), The British Crop Protection Council, London, page 1158;
(XXXVI) S-tert-Butylthiomethyl 0,0-diethyl phosphorodithioate (Terbufos), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 1165;
(XXXVII) Ethyl (3-fert-butyl-1-dimethylcarbamoyl-1 H-1,2,4-triazol-5-ylthio)acetate, (Triazamate), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 1224;
(XXXVIII) Abamectin, from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 3;
(XXXIX) 2-sec-Butylphenyl methylcarbamate (Fenobucarb), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 516;
(XL) N-te/ -Butyl-/V-(4-ethylbenzoyl)-3,5-dimethylbenzohydrazide (Tebufenozide), from The
Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page
1147; (XLI) (±)-5-Amino-1-(2,6-dichloro-α, ,α-trifluoro-p-tolyl)-4-trifluoromethylsulfinylpyrazole-3- carbonitrile (Fipronil), from The Pesticide Manual, 11thEd. (1997), The British Crop
Protection Council, London, page 545; (XLII) (f?S)-oc-Cyano-4-fluoro-3-phenoxybenzyl (1 RS,3RS;A RS,3Sfl;-3-(2,2-dichlorovinyl)-
2,2-dimethylcyclopropanecarboxylate (beta-Cyfluthrin), from The Pesticide Manual,
11thEd. (1997), The British Crop Protection Council, London, page 295; (XLIII) (4-Ethoxyphenyl)[3-(4-fluoro-3-phenoxyphenyl)propyl](dimethyl)silane (Silafluofen), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 1105; (XLIV) fert-Butyl (E)-oc-(1 ,3-dimethyl-5-phenoxypyrazol-4-ylmethyleneamino-oxy)-p-toluate
(Fenpyroximate), from The Pesticide Manual, 11,hEd. (1997), The British Crop Protection
Council, London, page 530; (XLV) 2-fert-Butyl-5-(4-tøt -butylbenzylthio)-4-chloropyridazin-3(2H)-one (Pyridaben), from
The Pesticide Manual, 11 hEd. (1997), The British Crop Protection Council, London, page
1161 ; (XLVI) 4-[[4-(1 ,1-Dimethylethyl)phenyl]ethoxy]quinazoline (Fenazaquin), from The Pesticide
Manual, 11thEd. (1997), The British Crop Protection Council, London, page 507; (XLVII) 4-Phenoxyphenyl (f?S)-2-(2-pyridyloxy)propyl ether (Pyriproxyfen), from The
Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page
1073; (XLVIII) 5-Chloro-/V-{2-[4-(2-ethoxyethyl)-2,3-dimethylphenoxy]ethyl}-6-ethylpyrimidin-4- amine (Pyrimidifen), from The Pesticide Manual, 11thEd. (1997), The British Crop
Protection Council, London, page 1070; (XLIX) (£)-/V-(6-Chloro-3-pyridylmethyl)-/V-ethyl-/V-methyl-2-nitrovinylidenediamine
(Nitenpyram), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection
Council, London, page 880; (L) (£)- 1-[(6-ChIoro-3-pyridyl)methyl]-/Vδ-cyano-Λ/1 -methylacetamidine (NI-25, Acetamiprid), from The Pesticide Manual, 11,hEd. (1997), The British Crop Protection Council, London, page 9; (LI) Avermectin B17 from The Pesticide Manual, 11thEd. (1997), The British Crop Protection
Council, London, page 3; (Lll) An insect-active extract from a plant, in particular (2 ?,6aS,12aS)-1 ,2,6,6a,12,12a- hexahydro-2-isopropenyl-8,9-dimethoxychromeno[3,4- 7]furo[2,3-/7]chromen-6-one
(Rotenone), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection
Council, London, page 1097; and an extract from Azadirachta indica, in particular azadirachtin, from The Pesticide Manual, 11thEd. (1997), The British Crop Protection
Council, London, page 59; (Llll) A preparation comprising insect-active nematodes, preferably Heterorhabditis bacteriophora and Heterorhabditis megidis, from The Pesticide Manual, 11,hEd. (1997),
The British Crop Protection Council, London, page 671 ; Steinernema feltiae, from The
Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page
1115, and Steinernema scapterisci, from The Pesticide Manual, 11,hEd. (1997), The
British Crop Protection Council, London, page 1116; (LIV) A preparation obtainable from Bacillus subtilis, from The Pesticide Manual, 11thEd.
(1997), The British Crop Protection Council, London, page 72; or from a Bacillus thuringiensis strain except for. compounds isolated from GC91 or from NCTC11821 ; The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 73;
(LV) A preparation comprising insect-active fungi, preferably Verticillium lecanii, from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 1266; Beauveria brogniartii, from The Pesticide Manual, 11,hEd. (1997), The British Crop Protection Council, London, page 85; and Beauveria bassiana, from The Pesticide Manual, 11 hEd. (1997), The British Crop Protection Council, London, page 83;
(LVI) A preparation comprising insect-active viruses, preferably Neodipridon Sertifer NPV, from The Pesticide Manual, 11,hEd. (1997), The British Crop Protection Council, London, page 1342; Mamestra brassicae NPV, from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 759; and Cydia pomonella granulosis virus, from The Pesticide Manual, 11,hEd. (1997), The British Crop Protection Council, London, page 291 ;
(CLXXXI) Methyl 7-chloro-2,3,4a,5-tetrahydro-2-[methoxycarbonyl(4-trifluoromethoxy- phenyl)carbamoyl]indol[1 ,2-e]oxazoline-4a-carboxylate (DPX-MP062, Indoxacarb), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 453;
(CLXXXII) /V-tert-Butyl-Λ/'-(3,5-dimethylbenzoyl)-3-methoxy-2-methylbenzohydrazide (RH- 2485, Methoxyfenozide), from The Pesticide Manual, 11thEd. (1997), The British Crop Protection Council, London, page 1094;
(CLXXXIII) Isopropyl Λ/'-[4-methoxybiphenyl-3-yl]hydrazinecarboxylate (D 2341), from Brighton Crop Protection Conference, 1996, 487- 493; and
(R2) Book of Abstracts, 212th ACS National Meeting, Orlando, FL, August 25-29 (1996), AGRO-020. Publisher: American Chemical Society, Washington, D.C. CONEN: 63BFAF.
According to what has been said above, a further essential aspect of the present invention relates to combination preparations for the control of parasites in warm-blooded animals, which comprise, in addition to a compound of the formula I, at least one further active ingredient with an identical or different direction of action and at least one physiologically compatible carrier. The present invention is not restricted to combinations of two.
The anthelmintic compositions according to the invention generally comprise 0.1 to 99% by weight, in particular 0.1 to 95% by weight, of active ingredient of the formula I or mixtures thereof, and 99.9 to 1% by weight, in particular 99.8 to 5% by weight, of a solid or liquid additive, including 0 to 25% by weight, in particular 0.1 to 25% by weight, of a surfactant. The compositions according to the invention can be applied topically, perorally, parenterally or subcutaneously to the animals to be treated, the compositions being present in the form of solutions, emulsions, suspensions (drenches), powders, tablets, boluses, capsules and as pour-on formulations.
The pour-on or spot-on method consists in applying the compound of the formula I to a locally restricted part of the skin or fur, advantageously on the neck or back of the animal. This is carried out, e.g., by applying a spot or dash of the pour-on or spot-on formulation to a relatively small area of the fur, from where the active substance spreads out virtually unaided over wide regions of the fur because of the spreading components of the formulation and supported by the movements of the animal.
It is advantageous for pour-on or spot-on formulations to comprise carriers which promote speedy distribution on the surface of the skin or in the fur of the host animal and which are generally described as spreading oils. Suitable carriers are, e.g., oily solutions; alcoholic and isopropanolic solutions, for example solutions of 2-octyldodecanol or oleyl alcohol; solutions in esters of monocarboxylic acids, such as isopropyl myristate, isopropyl palmitate, lauric acid oxal ester, oleyl oleate, decyl oleate, hexyl laurate, capric acid esters of saturated fatty alcohols with a chain length of Cι2-d8; solutions of esters of dicarboxylic acids, such as dibutyl phthalate, diisopropyl isophthalate, diisopropyl adipate or di(n-butyl) adipate, or also solutions of esters of aliphatic acids, e.g. glycols. It can be advantageous if a dispersant known from the pharmaceutical or cosmetics industry is additionally present. Examples are 2-pyrrolidone, 2-(N-alkyl)pyrrolidone, acetone, polyethylene glycol and ethers and esters thereof, propylene glycol or synthetic triglycerides.
The oily solutions include, e.g., vegetable oils, such as olive oil, groundnut oil, sesame oil, pine oil, linseed oil or castor oil. The vegetable oils can also be present in epoxidized form. Paraffin oils and silicone oils can also be used.
In general, a pour-on or spot-on formulation comprises 1 to 20% by weight of a compound of the formula I, 0.1 to 50% by weight of dispersant and 45 to 98.9% by weight of solvent.
The pour-on or spot-on method can be used particularly advantageously with gregarious animals, such as cattle, horses, sheep or pigs, where it is difficult or time-consuming to treat all the animals orally or via injection. Because of its simplicity, this method can naturally also be used with all other animals, including individual domestic animals or pets, and is very popular with animal owners because it can often be implemented without the expert assistance of a veterinary surgeon.
While concentrated compositions are more preferred as commercially available products, the end user generally uses dilute compositions.
Such compositions can comprise yet further additives, such as stabilizers, antifoaming agents, viscosity regulators, binders, deposit builders and other active ingredients to obtain specific effects.
Such anthelmintic compositions used by the end user likewise form part of the present invention.
In each of the methods according to the invention for controlling pests or of the pesticides according to the invention, the active ingredients of the formula I can be used in all their steric configurations or mixtures thereof.
The invention also includes a method for the prophylactic protection of warm-blooded animals, in particular of productive livestock, domestic animals and pets, against parasitic helminths, which comprises applying the active ingredients of the formula I or the active ingredient formulations prepared therefrom as a feed additive or drinking water additive or also in the solid or liquid form, orally, by injection or parenterally, to the animals. The invention also includes the compounds of the formula I according to the invention for use in one of the methods mentioned.
The following examples serve merely to illustrate the invention, without limiting it, the term "active ingredient" representing a substance listed in Table 1.
Preferred formulations are in particular composed in the following way:
(% = per cent by weight)
Formulation examples
1. Granules a) b)
Active ingredient 5% 10%
Kaolin 94% -
Highly dispersed silica 1% .
Attapulgite - 90%
The active ingredient is dissolved in methylene chloride and sprayed onto the carrier, and the solvent is subsequently evaporated under reduced pressure. Such granules can be added to the animal feed.
2. Granules
Active ingredient 3%
Polyethylene glycol (MW 200) 3%
Kaolin 94%
(MW = molecular weight)
The finely milled active ingredient is applied evenly in a mixer to the kaolin, which has been moistened with polyethylene glycol. In this way, dust-free coated granules are obtained.
3. Tablets or Boluses
1 Active ingredient 33.00%
Methylcellulose 0.80%
Highly dispersed silica 0.80%
Maize starch 8.40%
II Cryst. lactose 22.50%
Maize starch 17.00%
Microcryst. cellulose 16.50%
Magnesium stearate 1.00%
I Methylcellulose is stirred into water. After the material has swollen, silica is stirred in and the mixture is homogeneously suspended. Active ingredient and maize starch are mixed. The aqueous suspension is incorporated in this mixture and kneaded to a dough. The substance thus obtained is granulated through a 12 M sieve and dried.
II All 4 auxiliaries are intimately mixed.
III The premixes obtained according to I and II are mixed and pressed to give tablets or boluses.
4. Iniectables A. Oily vehicle (slow release)
1. Active ingredient 0.1-1.0 g Groundnut oil ad 100 ml
2. Active ingredient 0.1-1.0 g Sesame oil ad 100 ml
Preparation: The active ingredient is dissolved in a portion of the oil with stirring and, if desired, gentle heating, made up to the required volume after cooling and sterilely filtered through a suitable membrane filter with a size of 0.22 μm.
B. Water-miscible solvent (medium release rate)
1. Active ingredient 0.1-1.0 g 4-Hydroxymethyl-1 ,3-dioxolane (glycerol formal) 40 g
1 ,2-Propanediol ad 100 ml
2. Active ingredient 0.1-1.0 g Glycerol dimethyl acetal 40 g
1 ,2-Propanediol ad 100 ml
Preparation: The active ingredient is dissolved in a portion of the solvent with stirring, made up to the required volume and sterilely filtered through a suitable membrane filter with a size of 0.22 μm.
C. Aqueous solubilisate (rapid release)
1. Active ingredient 0.1-1.0 g Polyethoxylated castor oil (40 ethylene oxide units) 10 g
1 ,2-Propanediol 20 g
Benzyl alcohol 1 g
Water for injections ad 100 ml
2. Active ingredient 0.1-1.0 g Polyethoxylated sorbitan monooleate (20 ethylene oxide units) 8 g 4-Hydroxymethyl-1 ,3-dioxolane (glycerol formal) 20 g Benzyl alcohol 1 g Water for injections ad 100 ml
Preparation: The active ingredient is dissolved in the solvents and the surfactant and made up to the required volume with water. Sterile filtration is carried out through a suitable membrane filter with a pore diameter of 0.22 μm.
5. Pour-on
A.
Active ingredient 5 g
Isopropyl myristate 10 g
Isopropanol ad 100 ml
B. Active ingredient 2 g
Hexyl laurate 5 g
Triglycerides of medium chain length 15 g Ethanol ad 100 ml
Active ingredient 2 g
Oleyl oleate 5 g
N-Methylpyrrolidone 40 g
Isopropanol ad 100 ml
The aqueous systems can preferably also be used for oral and/or intraruminal administration.
The compositions can also comprise further additives, such as stabilizers, e.g. epoxidized or nonepoxidized vegetable oils (epoxidized coconut oil, rapeseed oil or soybean oil), antifoaming agents, e.g. silicone oil, preservatives, viscosity regulators, binders, deposit builders and fertilizers or other active ingredients to obtain specific effects.
Further biologically active substances or additives which are neutral towards the compounds of the formula I and have no adverse effect on the host animal to be treated, and mineral salts or vitamins, can also be added to the compositions described.
The following examples serve to clarify the invention. They do not limit the invention. The symbol 'h' denotes hour.
Preparation examples
Example 1 : 4-(2-Trifluoromethylphenyl)-3-buten-2-one a) 4.29 g of N,O-dimethylhydroxylamine hydrochloride, 9.5 g of 2-trifluoromethylcinnamic acid, 11.36 g of ethyldiisopropylamine, 0.45 g of 4-dimethylaminopyridine and 8.43 g of N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride are dissolved in 80 ml of methylene chloride and are stirred at ambient temperature under a nitrogen atmosphere for 8 h. The mixture is subsequently diluted with 200 ml of ethyl acetate and then washed twice with 1 N hydrochloric acid solution, then twice with a saturated sodium bicarbonate solution and finally once with saturated sodium chloride solution. The organic phase is separated, dried with magnesium sulfate and evaporated under reduced pressure. After purifying by flash chromatography, N-methoxy-N-methyl-3-(2-trifluoromethylphenyl)acrylamide is thus obtained. b) 11 g of N-methoxy-N-methyl-3-(2-trifluoromethylphenyl)acrylamide are dissolved in 150 ml of dry tetrahydrofuran under a nitrogen atmosphere, cooled to -78°C and treated dropwise with 36 ml of a 1.4N solution of methyllithium in diethyl ether in 10 minutes. The solution is subsequently furthermore stirred at -78°C for 2 h and then hydrolysed with water. 200 ml of ethyl acetate are now added at ambient temperature and the mixture is washed three times with saturated sodium chloride solution. The organic phase is finally separated, dried with magnesium sulfate and evaporated under reduced pressure. After purifying by flash chromatography, the title compound is thus obtained.
Example 2: 4-(2-Trifluoromethylphenyl)butan-2-one
200 mg of Raney nickel are added to a solution of 2.05 g of 4-(2-trifluoromethylphenyl)-3- buten-2-one in 100 ml of ethyl acetate and the mixture is stirred under a hydrogen atmosphere and at standard pressure for 7 h. The mixture is subsequently filtered and the filtrate is evaporated under reduced pressure, whereby the title compound is obtained.
Example 3: 2-Amino-2-methyl-4-(2-trifluoromethylphenyl)butyronitrile
1.5 g of 4-(2-trifluoromethylphenyl)butan-2-one, 0.41 g of sodium cyanide and 0.56 g of ammonium chloride are dissolved in 77 ml of a 2M solution of ammonia in ethanol and the mixture is stirred at ambient temperature for 7 h. The mixture is subsequently concentrated under reduced pressure and the residue is redissolved in ethyl acetate and washed with water and three times with saturated sodium chloride solution. The organic phase is separated, dried with magnesium sulfate and evaporated under reduced pressure. After purifying the residue by flash chromatography, the title compound is thus obtained.
Example 4: N-(1 -cyano-1 -methyl-3-r2-trif luoromethylphenyl1propyl)-4-trif luoromethoxy- benzamide
200 mg of 2-amino-2-methyl-4-(2-trif luoromethylphenyl)butyronitrile, 185 mg of 4-trif luoro- methoxybenzoyl chloride, 107 mg of ethyldiisopropylamine and 10 mg of 4-dimethylamino- pyridine are dissolved in 10 ml of methylene chloride and the mixture is stirred under a nitrogen atmosphere for 6 h. After the addition of 50 ml of ethyl acetate, the organic phase is washed once with water and then twice with saturated sodium chloride solution. The organic phase is separated, dried with magnesium sulfate and evaporated under reduced pressure. After purifying the residue by flash chromatography, the title compound is thus obtained as white crystals with a melting point of 87-9°C.
The substances mentioned in the following table can also be prepared analogously to the procedure described above. The melting point values are given in °C.
Table 1
Figure imgf000035_0001
1.16 CH2CH2 H 4-OCF3 M.p. 129°C
1.17 CH2CH2 H 2-OCF2CF2H
1.18 CH2CH H 3-OCF2CF2H
1.19 CH2CH2 H 4-OCF2CF2H
Figure imgf000035_0002
1.29 CH2CH2 H 2-NCH3C6H5
1.30 CH2CH2 H 3-NCH3C6H5
1.31 CH2CH2 H 4-NCH3C6H5
1.32 CH2CH2 H 2-C(O)C6H5
1.33 CH2CH2 H 3-C(O)C6H5
1.34 CH2CH2 H 4-C(O)C6H5
1.35 CH2CH2 H 2-C(NOCH3)C6H5
1.36 CH2CH2 H 3-C(NOCH3)C6H5
1.37 CH2CH2 H 4-C(NOCH3)C6H5
1.38 CH2CH2 H 2-CH(CN)C6H5
1.39 CH2CH2 H 3-CH(CN)C6H5
1.40 CH2CH2 H 4-CH(CN)C6H5
1.41 CH2CH2 2-F H 1.42 CH2CH2 2-F 2-F
1.43 CH2CH2 2-F 3-F
1.44 CH2CH2 2-F 4-F
1.45 CH2CH2 2-F 2-CI
1.46 CH2CH2 2-F 3-CI
Figure imgf000036_0001
1.56 CH2CH2 2-F 4-OCF3
1.57 CH2CH2 2-F 2-OCF2CF2H
1.58 CH2CH2 2-F 3-OCF2CF2H
1.59 CH2CH2 2-F 4-OCF2CF2H
1.60 CH2CH2 2-F 2-OCF2CF3
1.61 CH2CH2 2-F 3-OCF2CF3
1.62 CH2CH2 2-F 4-OCF2CF3
Figure imgf000036_0002
1.66 CH2CH2 2-F 2-NHC6H5
1.67 CH2CH2 2-F 3-NHC6H5
1.68 CH2CH2 2-F 4-NHC6H5
1.69 CH2CH2 2-F 2-NCH3C6H5
1.70 CH2CH2 2-F 3-NCH3C6H5
1.71 CH2CH2 2-F 4-NCH3C6H5
1.72 CH2CH2 2-F 2-C(O)C6H5
1.73 CH2CH2 2-F 3-C(O)C6H5
1.74 CH2CH2 2-F 4-C(O)C6H5
1.75 CH2CH2 2-F 2-C(NOCH3)C6H5
1.76 CH2CH2 2-F 3-C(NOCH3)C6H5
1.77 CH2CH2 2-F 4-C(NOCH3)C6H5
1.78 CH2CH2 2-F 2-CH(CN)C6H5
1.79 CH2CH2 2-F 3-CH(CN)C6H5
1.80 CH2CH2 2-F 4-CH(CN)C6H5
1.81 CH2CH2 3-F H
1.82 CH2CH2 3-F 2-F
1.83 CH2CH2 3-F 3-F
1.84 CH2CH2 3-F 4-F
1.85 CH2CH2 3-F 2-CI
1.86 CH2CH2 3-F 3-CI
1.87 CH2CH2 3-F 4-CI
1.88 CH2CH2 3-F 2-CH3
Figure imgf000036_0003
Figure imgf000037_0001
1.97 CH2CH2 3-F 2-OCF2CF2H
1.98 CH2CH2 3-F 3-OCF2CF2H
1.99 CH2CH2 3-F 4-OCF2CF2H
1.100 CH2CH2 3-F 2-OCF2CF3
1.101 CH2CH2 3-F 3-OCF2CF3
1.102 CH2CH2 3-F 4-OCF2CF3
1.103 CH2CH2 3-F 2-OC6H5
1.104 CH2CH2 3-F 3-OC6H5
1.105 CH2CH2 3-F 4-OC6H5
1.106 CH2CH2 3-F 2-NHC6H5
1.107 CH2CH2 3-F 3-NHC6H5
1.108 CH2CH2 3-F 4-NHC6H5
1.109 CH2CH2 3-F 2-NCH3C6H5
1.110 CH2CH2 3-F 3-NCH3C6H5
1.111 CH2CH2 3-F 4-NCH3C6H5
1.112 CH2CH2 3-F 2-C(O)C6H5
1.113 CH2CH 3-F 3-C(O)C6H5
1.114 CH2CH2 3-F 4-C(O)C6H5
1.115 CH2CH2 3-F 2-C(NOCH3)C6H5
1.116 CH2CH2 3-F 3-C(NOCH3)C6H5
1.117 CH2CH2 3-F 4-C(NOCH3)C6H5
1.118 CH2CH2 3-F 2-CH(CN)C6H5
1.119 CH2CH2 3-F 3-CH(CN)C6H5
1.120 CH2CH2 3-F 4-CH(CN)C6H5
Figure imgf000037_0002
I
1.126 CH2CH2 4-F 3-CI
1.127 CH2CH2 4-F 4-CI
Figure imgf000037_0003
1.137 CH2CH2 4-F 2-OCF2CF2H
1.138 CH2CH2 4-F 3-OCF2CF2H
1.139 CH2CH2 4-F 4-OCF2CF2H
1.140 CH2CH2 4-F 2-OCF2CF3
1.141 CH2CH2 4-F 3-OCF2CF3 1.142 CH2CH2 4-F 4-OCF2CF3
1.143 CH2CH2 4-F 2-OC6H5
1.144 CH2CH2 4-F 3-OC6H5
1.145 CH2CH2 4-F 4-OC6H5
1.146 CH2CH2 4-F 2-NHC6H5
1.147 CH2CH2 4-F 3-NHC6H5
1.148 CH2CH2 4-F 4-NHC6H5
1.149 CH2CH2 4-F 2-NCH3C6H5
1.150 CH2CH2 4-F 3-NCH3C6H5
1.151 CH2CH2 4-F 4-NCH3C6H5
1.152 CH2CH2 4-F 2-C(O)C6H5
1.153 CH2CH2 4-F 3-C(O)C6H5
1.154 CH2CH2 4-F 4-C(O)C6H5
1.155 CH2CH 4-F 2-C(NOCH3)C6H5
1.156 CH2CH2 4-F 3-C(NOCH3)C6H5
1.157 CH2CH2 4-F 4-C(NOCH3)C6H5
1.158 CH2CH2 4-F 2-CH(CN)C6H5
1.159 CH2CH2 4-F 3-CH(CN)C6H5
1.160 CH2CH2 4-F 4-CH(CN)C6H5
1.161 CH2CH2 2-CF3 H
1.162 CH CH2 2-CF3 2-F
1.163 CH CH2 2-CF3 3-F
1.164 CH2CH2 2-CF3 4-F
1.165 CH2CH2 2-CF3 2-CI
1.166 CH2CH2 2-CF3 3-CI
1.167 CH2CH2 2-CF3 4-CI
1.168 CH2CH2 2-CF3 2-CH3
1.169 CH2CH2 2-CF3 3-CH3
1.170 CH2CH2 2-CF3 4-CH3
1.171 CH2CH2 2-CF3 2-CF3
1.172 CH2CH2 2-CF3 3-CF3
1.173 CH2CH2 2-CF3 4-CF3
1.174 CH2CH2 2-CF3 2-OCF3
1.175 CH2CH2 2-CF3 3-OCF3
1.176 CH2CH2 2-CFg 4-OCF3 M.p. 87-9°
1.177 CH2CH2 2-CF3 2-OCF2CF2H
1.178 CH2CH2 2-CF3 3-OCF2CF2H
1.179 CH2CH2 2-CF3 4-OCF2CF2H viscous oil
1.180 CH2CH2 2-CF3 2-OCF2CF3
1.181 CH2CH 2-CFg 3-OCF2CF3
1.182 CH2CH2 2-CF3 4-OCF2CF3
1.183 CH2CH2 2-CF3 2-OC6H5
1.184 CH2CH2 2-CF3 3-OC6H5
1.185 CH2CH2 2-CF3 4-OC6H5
1.186 CH2CH2 2-CF3 2-NHC6H5
1.187 CH2CH2 2-CF3 3-NHC6H5
1.188 CH2CH2 2-CF3 4-NHC6H5
1.189 CH2CH2 2-CFg 2-NCH3C6H5
1.190 CH2CH2 2-CF3 3-NCH3C6H5
1.191 CH2CH2 2-CF3 4-NCH3C6H5 1.192 CH2CH2 2-CF3 2-C(O)C6H5
1.193 CH2CH2 2-CF3 3-C(O)C6H5
1.194 CH2CH2 2-CF3 4-C(O)C6H5 M.p. 99-1 O
1.195 CH2CH2 2-CFg 2-C(NOCH3)C6H5
1.196 CH2CH2 2-CF3 3-C(NOCH3)C6H5
1.197 CH2CH2 2-CF3 4-C(NOCH3)C6H5
1.198 CH2CH2 2-CF3 2-CH(CN)C6H5
1.199 CH2CH2 2-CFg 3-CH(CN)C6H5
1.200 CH2CH2 2-CF3 4-CH(CN)C6H5
Figure imgf000039_0001
1.208 CH2CH2 3-CF3 2-CH3
1 .209 CH2CH2 3-CF3 3-CH3
1 .210 CH2CH2 3-CF3 4-CH3
1.211 CH2CH2 3-CF3 2-CF3
1.212 CH2CH2 3-CF3 3-CF3
1.213 CH2CH2 3-CF3 4-CF3
1 .214 CH2CH2 3-CF3 2-OCF3
1 .215 CH2CH2 3-CF3 3-OCF3
1 .216 CH2CH2 3-CF3 4-OCF3
1 .217 CH2CH2 3-CF3 2-OCF2CF2H
1 .218 CH2CH2 3-CF3 3-OCF2CF2H
1 .219 CH2CH2 3-CF3 4-OCF2CF2H
1.220 CH2CH2 3-CF3 2-OCF2CF3
1.221 CH2CH2 3-CF3 3-OCF2CF3
1 .222 CH2CH2 3-CFg 4-OCF2CF3
1 .223 CH2CH2 3-CF3 2-OC6H5
1 .224 CH2CH2 3-CFg 3-OC6H5
1.225 CH2CH2 3-CFg 4-OC6H5
1 .226 CH2CH2 3-CFg 2-NHC6H5
1 .227 CH2CH2 3-CFg 3-NHC6H5
1 .228 CH2CH2 3-CFg 4-NHC6H5
1.229 CH2CH2 3-CFg 2-NCH3C6H5
1 .230 CH2CH2 3-CF3 3-NCH3C6H5
1 .231 CH2CH2 3-CFg 4-NCH3C6H5
Figure imgf000039_0002
Figure imgf000040_0001
1.248 CH2CH2 4-CF3 2-CH3
1.249 CH2CH2 4-CF3 3-CH3
1.250 CH2CH2 4-CF3 4-CH3
1.251 CH2CH2 4-CF3 2-CF3
1.252 CH2CH2 4-CF3 3-CF3
1.253 CH2CH 4-CF3 4-CF3
1.254 CH2CH2 4-CF3 2-OCF3
1.255 CH2CH2 4-CF3 3-OCF3
1.256 CH2CH2 4-CF3 4-OCF3
1.257 CH2CH2 4-CF3 2-OCF2CF2H
1.258 CH2CH2 4-CF3 3-OCF2CF2H
1.259 CH2CH2 4-CF3 4-OCF2CF2H
1.260 CH2CH2 4-CF3 2-OCF2CF3
1.261 CH2CH2 4-CF3 3-OCF2CF3
1.262 CH2CH2 4-CF3 4-OCF2CF3
1.263 CH2CH2 4-CF3 2-OC6H5
1.264 CH2CH2 4-CF3 3-OC6H5
1.265 CH2CH2 4-CF3 4-OC6H5
1.266 CH2CH2 4-CF3 2-NHC6H5
1.267 CH2CH2 4-CF3 3-NHC6H5
1.268 CH2CH2 4-CF3 4-NHC6H5
1.269 CH2CH2 4-CFs 2-NCH3C6H5
1.270 CH2CH2 4-CF3 3-NCH3C6H5
1.271 CH2CH2 4-CF3 4-NCH3C6H5
1.272 CH2CH2 4-CF3 2-C(O)C6H5
1.273 CH2CH2 4-CFs 3-C(O)C6H5
1.274 CH2CH2 4-CF3 4-C(O)C6H5
1.275 CH2CH2 4-CF3 2-C(NOCH3)C6H5
1.276 CH2CH2 4-CF3 3-C(NOCH3)C6H5
1.277 CH2CH2 4-CF3 4-C(NOCH3)C6H5
1.278 CH2CH2 4-CFs 2-CH(CN)C6H5
1.279 CH2CH2 4-CFs 3-CH(CN)C6H5
1.280 CH2CH2 4-CF3 4-CH(CN)C6H5
1.281 CH2CH2 4-OCH I3 4-OCF3 M.p. 125°
1.282 CH2CH 2-CF3, 4,5-F2 H
1.283 CH CH 2-CF3, 4,5-F2 2-F
1.284 CH2CH2 2-CFg, 4,5-F2 3-F
1.285 CH2CH2 2-CF3, 4,5-F2 4-F
1.286 CH2CH2 2-CF3, 4,5-F2 2-CI
1.287 CH2CH2 2-CF3, 4,5-F2 3-CI
1.288 CH2CH2 2-CFg, 4,5-F2 4-CI
1.289 CH2CH2 2-CF3, 4,5-F2 2-CH3
1.290 CH2CH2 2-CFg, 4,5-F2 3-CH3
1.291 CH2CH2 2-CFg, 4,5-F2 4-CH3 1.292 CH2CH2 2-CFg, 4,5-F2 2-CF3
1.293 CH2CH2 2-CF3, 4,5-F2 3-CFg
1.294 CH2CH2 2-CF3, 4,5-F2 4-CF3
1.295 CH2CH2 2-CF3, 4,5-F2 2-OCF3
1.296 CH2CH2 2-CF3, 4,5-F2 3-OCF3
1.297 CH2CH2 2-CF3, 4,5-F2 4-OCF3
1.298 CH2CH2 2-CF3, 4,5-F2 2-OCF2CF2H
1.299 CH2CH2 2-CF3, 4,5-F2 3-OCF2CF2H
1.300 CH2CH2 2-CF3, 4,5-F2 4-OCF2CF2H
1.301 CH2CH2 2-CF3, 4,5-F2 2-OCF2CF3
1.302 CH2CH2 2-CF3, 4,5-F2 3-OCF2CF3
1.303 CH2CH2 2-CF3, 4,5-F2 4-OCF2CF3
1.304 CH2CH2 2-CF3, 4,5-F2 2-OC6H5
1.305 CH2CH2 2-CF3, 4,5-F2 3-OC6H5
1.306 CH2CH2 2-CF3, 4,5-F2 4-OC6H5
1.307 CH2CH2 2-CFg, 4,5-F2 2-NHC6H5
1.308 CH2CH 2-CFg, 4,5-F2 3-NHC6H5
1.309 CH2CH2 2-CFg, 4,5-F2 4-NHC6H5
1.310 CH2CH2 2-CFg, 4,5-F2 2-NCH3C6H5
1.311 CH2CH2 2-CF3, 4,5-F2 3-NCH3C6H5
1.312 CH2CH2 2-CF3, 4,5-F2 4-NCH3C6H5
1.313 CH2CH2 2-CF3, 4,5-F2 2-C(O)C6H5
1.314 CH2CH2 2-CF3, 4,5-F2 3-C(O)C6H5
1.315 CH2CH2 2-CF3, 4,5-F2 4-C(O)C6H5
1.316 CH2CH2 2-CF3, 4,5-F2 2-C(NOCH3)C6H5
1.317 CH2CH2 2-CF3, 4,5-F2 3-C(NOCH3)C6H5
1.318 CH2CH2 2-CF3, 4,5-F2 4-C(NOCH3)C6H5
1.319 CH2CH2 2-CF3, 4,5-F2 2-CH(CN)C6H5
1.320 CH2CH2 2-CF3, 4,5-F2 3-CH(CN)C6H5
1.321 CH2CH2 2-CF3, 4,5-F2 4-CH(CN)C6H5
1.322 CH2CH2 2-O-cyclopropyl, 4,5-F2 H
1.323 CH2CH2 2-O-cyclopropyl, 4,5-F2 2-F
1.324 CH2CH2 2-O-cyclopropyl, 4,5-F2 3-F
1.325 CH2CH2 2-O-cyclopropyl, 4,5-F2 4-F
1.326 CH2CH2 2-O-cyclopropyl, 4,5-F2 2-CI
1.327 CH2CH2 2-O-cyclopropyl, 4,5-F2 3-CI
1.328 CH2CH2 2-O-cyclopropyl, 4,5-F2 4-CI
1.329 CH2CH2 2-O-cyclopropyl, 4,5-F2 2-CH3
1.330 CH2CH2 2-O-cyclopropyl, 4,5-F2 3-CH3
1.331 CH2CH2 2-O-cyclopropyl, 4,5-F2 4-CH3
1.332 CH2CH2 2-O-cyclopropyl, 4,5-F2 2-CF3
1.333 CH2CH2 2-O-cyclopropyl, 4,5-F2 3-CFg
1.334 CH2CH2 2-O-cyclopropyl, 4,5-F2 4-CF3
1.335 CH2CH2 2-O-cyclopropyl, 4,5-F2 2-OCF3
1.336 CH2CH2 2-O-cyclopropyl, 4,5-F2 3-OCF3
1.337 CH2CH2 2-O-cyclopropyl, 4,5-F2 4-OCF3
1.338 CH2CH2 2-O-cyclopropyl, 4,5-F2 2-OCF2CF2H
1.339 CH2CH2 2-O-cyclopropyl, 4,5-F2 3-OCF2CF2H
1.340 CH2CH2 2-O-cyclopropyl, 4,5-F2 4-OCF2CF2H
1.341 CH2CH2 2-O-cyclopropyl, 4,5-F2 2-OCF2CF3 2-O-cyclopropyl, 4,5-F2 3-OCF2CF3 2-O-cyclopropyl, 4,5-F2 4-OCF2CF3 2-O-cyclopropyl, 4,5-F2 2-OC6H5 2-O-cyclopropyl, 4,5-F2 3-OC6H5 2-O-cyclopropyl, 4,5-F2 4-OC6H5 2-O-cyclopropyl, 4,5-F2 2-NHC6H5 2-O-cyclopropyl, 4,5-F2 3-NHC3H5 2-O-cyclopropyl, 4,5-F2 4-NHC6H5 2-O-cyclopropyl, 4,5-F2 2-NCH3C6H5 2-O-cyclopropyl, 4,5-F2 3-NCH3C6H5 2-O-cyclopropyl, 4,5-F2 4-NCH3C6H5 2-O-cyclopropyl, 4,5-F2 2-C(O)C6H5 2-O-cyclopropyl, 4,5-F2 3-C(O)C6H5 2-O-cyclopropyl, 4,5-F2 4-C(O)C6H5 2-O-cyclopropyl, 4,5-F2 2-C(NOCH3)C6H5 2-O-cyclopropyl, 4,5-F2 3-C(NOCH3)C6H5 2-O-cyclopropyl, 4,5-F2 4-C(NOCH3)C6H5 2-O-cyclopropyl, 4,5-F2 2-CH(CN)C6H5 2-O-cyclopropyl, 4,5-F2 3-CH(CN)C6H5 2-O-cyclopropyl, 4,5-F2 4-CH(CN)C6H5
1.362 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 H
1.363 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 2-F
1.364 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F 3-F
1.365 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 4-F
1.366 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 2-CI
1.367 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 3-CI
1.368 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 4-CI
1.369 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 2-CH3
1.370 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 3-CH3
1.371 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 4-CH3
1.372 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 2-CF3
1.373 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 3-CFg
1.374 CH2CH 2-N(CH3)-cyclopropyl, 4,5-F2 4-CF3
1.375 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 2-OCF3
1.376 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 3-OCF3
1.377 CH2CH 2-N(CH3)-cyclopropyl, 4,5-F2 4-OCF3
1.378 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 2-OCF2CF2H
1.379 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 3-OCF2CF2H
1.380 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 4-OCF2CF2H
1.381 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 2-OCF2CF3
1.382 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 3-OCF2CF3
1.383 CH CH 2-N(CH3)-cyclopropyl, 4,5-F2 4-OCF2CF3
1.384 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 2-OC6H5
1.385 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 3-OC6H5
1.386 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 4-OC6H5
1.387 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 2-NHC6H5
1.388 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 3-NHC6H5
1.389 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 4-NHC6H5
1.390 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 2-NCH3C6H5
1.391 CH2CH2 2-N(CH3)-cvclopropyl, 4,5-F2 3-NCH3C6H5 1.392 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 4-NCH3C6H5
1.393 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 2-C(O)C6H5
1.394 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 3-C(O)C6H5
1.395 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 4-C(O)C6H5
1.396 CH CH2 2-N(CH3)-cyclopropyl, 4,5-F2 2-C(NOCH3)C6H5
1.397 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 3-C(NOCH3)C6H5
1.398 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 4-C(NOCH3)C6H5
1.399 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 2-CH(CN)C6H5
1.400 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 3-CH(CN)C6H5
1.401 CH2CH2 2-N(CH3)-cyclopropyl, 4,5-F2 4-CH(CN)C6H5
1.402 CH CH 2-Br , 4,5-F2 H
1.403 CH2CH2 2-Br , 4,5-F2 2-F
1.404 CH2CH2 2-Br , 4,5-F2 3-F
1.405 CH2CH2 2-Br , 4,5-F2 4-F
1.406 CH2CH2 2-Br , 4,5-F2 2-CI
1.407 CH2CH2 2-Br , 4,5-F2 3-CI
1.408 CH2CH2 2-Br , 4,5-F2 4-CI
1.409 CH2CH2 2-Br , 4,5-F2 2-CH3
1.410 CH CH2 2-Br , 4,5-F2 3-CH3
1.411 CH2CH2 2-Br , 4,5-F2 4-CH3
1.412 CH2CH2 2-Br , 4,5-F2 2-CF3
1.413 CH2CH2 2-Br , 4,5-F2 3-CFg
1.414 CH2CH2 2-Br , 4,5-F2 4-CF3
1.415 CH2CH2 2-Br , 4,5-F2 2-OCF3
1.416 CH2CH 2-Br , 4,5-F2 3-OCF3
1.417 CH CH2 2-Br , 4,5-F2 4-OCF3
1.418 CH2CH2 2-Br , 4,5-F2 2-OCF2CF2H
1.419 CH2CH2 2-Br , 4,5-F2 3-OCF2CF2H
1.420 CH2CH2 2-Br , 4,5-F2 4-OCF2CF2H
1.421 CH2CH2 2-Br , 4,5-F2 2-OCF2CF3
1.422 CH2CH2 2-Br , 4,5-F2 3-OCF2CF3
1.423 CH CH2 2-Br , 4,5-F2 4-OCF2CF3
1.424 CH2CH2 2-Br , 4,5-F2 2-OC6H5
1.425 CH2CH2 2-Br , 4,5-F2 3-OC6H5
1.426 CH2CH2 2-Br , 4,5-F2 4-OC6H5
1.427 CH2CH2 2-Br , 4,5-F2 2-NHC6H5
1.428 CH2CH2 2-Br , 4,5-F2 3-NHC6H5
1.429 CH2CH2 2-Br , 4,5-F2 4-NHC6H5
1.430 CH2CH2 2-Br , 4,5-F2 2-NCH3C6H5
1.431 CH2CH2 2-Br , 4,5-F2 3-NCH3C6H5
1.432 CH2CH2 2-Br , 4,5-F2 4-NCH3C6H5
1.433 CH2CH2 2-Br , 4,5-F2 2-C(O)C6H5
1.434 CH2CH2 2-Br , 4,5-F2 3-C(O)C6H5
1.435 CH2CH2 2-Br , 4,5-F2 4-C(O)C6H5
1.436 CH CH2 2-Br , 4,5-F2 2-C(NOCH3)C6H5
1.437 GH2CH2 2-Br , 4,5-F2 3-C(NOCH3)C6H5
1.438 CH2CH2 2-Br , 4,5-F2 4-C(NOCH3)C6H5
1.439 CH2CH2 2-Br , 4,5-F2 2-CH(CN)C6H5
1.440 CH2CH2 2-Br , 4,5-F2 3-CH(CN)C6H5
1.441 CH2CH2 2-Br , 4,5-F2 4-CH(CN)C6H5 Biological examples
1. In vivo test against Trichostrongylus colubriformis and Haemonchus contortus in Mongolian gerbils (Meriones unquiculatus) bv peroral administration
Six- to eight-week-old Mongolian gerbils are infected, using manufactured feed, with in each case approximately 2 000 larvae of the 3rd stage of T. colubriformis and H. contortus. Six days after infecting, the gerbils are lightly anaesthetized with N2O and are treated by peroral administration with the test compounds, dissolved in a mixture of 2 parts of DMSO and 1 part of polyethylene glycol (PEG 300), with amounts of 100, 32 and 10 - 0.1 mg/kg. On day 9 (3 days after treating), when most of the H. contortus larvae still existing are in the late 4th stage and most of the T. colubriformis are immature adults, the gerbils are sacrificed in order to count the worms. The activity is calculated in % reduction in the number of worms in each gerbil by comparison with the geometric mean of the number of worms from 8 infected and untreated gerbils.
In this test, a large decrease in the nematode infestation is obtained with compounds of the formula I, in particular from Table 1.
The following test methods can be employed in investigating the insecticidal and/or acaricidal action of the compounds of the formula I on animals and plants.
2. Action against _ larvae of Lucilia sericata
1 ml of an aqueous suspension of the active substance to be tested is thus mixed at approximately 50°C with 3 ml of a special medium for raising larvae, so that a homogenate with an active ingredient content of either 250 or 125 ppm is formed. Approximately 30 Lucilia larvae (L-i) are introduced into each test tube sample. After 4 days, the mortality rate is determined.
3. Acaricidal action against Boophilus microplus (Biarra strain)
An adhesive tape is attached horizontally to a PVC plate such that 10 female Boophilus microplus ticks (Biarra strain) which have sucked themselves full of blood can be adhesively attached to the tape via their backs in a row, next to one another. Each tick is injected, using an injection needle, with 1 μl of a liquid which is a 1:1 mixture of polyethylene glycol and acetone and in which a certain amount of active ingredient of alternatively 1 , 0.1 or 0.01 μg per tick is dissolved. Control animals receive an injection not comprising an active ingredient. After the treatment, the animals are kept in an insectarium under standard conditions at approximately 28°C and 80% relative humidity until egg laying has occurred and the larvae have hatched from the eggs of the control animals. The activity of a test substance is determined using the IRg0, i.e. that dose of active ingredient is ascertained at which, after 30 days, 9 out of 10 female ticks (= 90%) lay eggs which are not able to hatch.
4. In vitro activity against fed Boophilus microplus females (Biarra):
4 x 10 fed female ticks of the OP-resistant Biarra strain are attached to an adhesive tape and are covered for 1 h with a wad of cotton which has been impregnated with an emulsion or suspension of the test compound in concentrations in each case of 500, 125, 31 and 8 ppm. The mortality, egg laying and larval hatching are evaluated 28 days later.
An indication of the activity of the test compounds is the number of the females which
- quickly die, before laying eggs,
- survive for some time, without laying eggs,
- lay eggs in which no embryos develop,
- lay eggs in which embryos develop but from which no larvae hatch, and
- lay eggs in which embryos develop and from which larvae hatch normally in 26 to 27 days.
5. In vitro activity against nymphs of Amblvomma hebraeum
About 5 hungry nymphs are placed in a polystyrene test tube comprising 2 mi of the test compound in solution, suspension or emulsion.
After immersing for 10 minutes and shaking for 2 x 10 seconds on a vortex mixer, the test tubes are plugged with a thick wad of cotton wool and are inverted. As soon as all the liquid has been soaked up by the wad of cotton, the wad is pushed halfway into the still inverted test tube, so that most of the liquid is squeezed out of the wad of cotton and flows into a petri dish placed underneath.
The test tubes are now, until evaluation, stored at ambient temperature in a room lit by daylight. After 14 days, the test tubes are immersed in a beaker of boiling water. If, in reaction to the heat, the ticks begin to move, the test substance is inactive at the test concentration; otherwise, the ticks are considered to be dead and the test substance is considered to be active at the test concentration. All substances are tested in a concentration range from 0.1 to 100 ppm. 6. Action against Dermanyssus gallinae
2 to 3 ml of a solution comprising 10 ppm of active ingredient and approximately 200 mites (Dermanyssus gallinae) at various development stages are placed in a glass vessel open at the top. The vessel is subsequently plugged with a wad of cotton, shaken for 10 minutes, until the mites have been completely wetted, and then briefly inverted, so that the remaining test solution can be absorbed by the cotton wool. After 3 days, the mortality of the mites is ascertained by counting the dead individuals and is given in per cent.
7. Action against Musca domestica
A sugar cube is treated with a solution of the test substance such that the concentration of test substance in the sugar, after drying overnight, is 250 ppm. This treated cube is placed with a wet wad of cotton and 10 adult Musca domestica of an OP-resistant strain on an aluminium dish, is covered with a beaker and is incubated at 25°C. The mortality rate is determined after 24 hours.

Claims

WHAT IS CLAIMED IS:
1. A compound of the formula
Figure imgf000047_0001
O in which
An and Ar2 are, independently of one another, unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-C6alkyl, halo-Cι-C6alkyl, d-C6alkoxy, halo- Cι-C6alkoxy, C2-C6alkenyl, halo-C2-C6alkenyl, C2-C6alkynyl, C3-C6cycloalkyl, C3-C6cycloalkyl- oxy, d-dcycloalkylamino, C3-C6cycloalkylthio, C2-C6alkenyloxy, halo-C2-C6alkenyloxy, C C6alkylthio, halo-d-dalkylthio, d-dalkylsulfonyloxy, halo-C-*-C6alkylsulfonyloxy, d-C6alkylsulfinyl, halo-CrC6alkylsulfinyl, CrC6alkylsulfonyl, halo-CrC6alkylsulfonyl, C2-C6alkenylthio, halo-C2-C6alkenylthio, C2-C6alkenylsulfinyl, halo-C2-C6alkenylsulfinyl, C2-C6alkenylsulfonyl, halo-C2-C6alkenylsulfonyl, CrC6alkylamino, di-C C6alkyIamino, C C6alkylsulfonylamino, halo-d-C6alkylsulfonylamino, C C6alkylcarbonyl, halo- CrC6alkylcarbonyl, d-dalkoxycarbonyl, d-C6alkylaminocarbonyl and di- C C6alkylaminocarbonyI; unsubstituted or mono- or polysubstituted phenylamino; unsubstituted or mono- or polysubstituted phenylcarbonyl; unsubstituted or mono- or polysubstituted phenylmethoxymino; unsubstituted or mono- or polysubstituted phenylhydroxy- methyl; unsubstituted or mono- or polysubstituted 1 -phenyl-1 -hydroxyethyl; unsubstituted or mono- or polysubstituted phenylchloromethyl; unsubstituted or mono- or polysubstituted phenylcyanomethyl; unsubstituted or mono- or polysubstituted phenyl, in which the substituents in each case can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-dalkyl, halo-d-C6alkyl, d-dalkoxy, halo- d-C6alkoxy, d-C6alkylthio, halo-C C6alkylthio, C C6alkylsulfinyl, halo-d-C6alkylsulfinyl, d-C6alkylsulfonyl and halo-C C6alkylsulfonyl; unsubstituted or mono- or polysubstituted phenoxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-dalkyl, halo-CrC6alkyl, d-C6alkoxy, halo- d-C6alkoxy, C C6alkylthio, halo-C C6alkylthio, d-C6alkylsulfinyl, halo-d-C6alky!sulfinyl, d-dalkylsulfonyl and halo-C C6alkylsulfonyl; unsubstituted or mono- or polysubstituted phenylacetylenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-dalkyl, halo-CrC6alkyl, C dalkoxy, halo-C C6alkoxy, d-dalkylthio, halo-Cι-C6alkylthio, d-dalkylsulfinyl, halo-d- C6alkylsulfinyl, CrC6alkylsulfonyl and halo-CrC6alkylsulfonyl; and unsubstituted or mono- or polysubstituted pyridyloxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-dalkyl, halo-d-C6alkyl, d-dalkoxy, halo-d-dalkoxy, d-dalkylthio, halo-d-C6alkylthio, CrC6alkylsulfinyl, halo- d-C6alkylsulfinyl, C C6alkylsulfonyl and halo-CrC6alkylsulfonyl; unsubstituted or mono- or polysubstituted hetaryl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-dalkyl, halo-d-dalkyl, d-dalkoxy, halo-d-dalkoxy, C2-C6alkenyloxy, halo- C2-dalkenyloxy, CrC6alkylthio, halo-d-C6alkylthio, C C6alkylsulfinyl, halo- C C6alkylsulfinyl, C2-C6alkenylthio, halo-C2-C6alkenylthio, C2-C6alkenylsulfinyl, halo- C2-C6alkenylsulfinyl, C C6alkylsulfonyl, halo-d-dalkylsulfonyl, C2-C6alkenylsulfonyl, halo- C2-C6alkenylsulfonyl, d-dalkylamino and di-CrC6alkylamino; or unsubstituted or mono- or polysubstituted naphthyl or quinolyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-dalkyl, halo-CrC6alkyl, d-dalkoxy, halo-d-dalkoxy, C2-C6alkenyloxy, halo- C2-C6alkenyloxy, C-*-C6alkylthio, halo-d-C6aIkylthio, d-C6alkylsulfinyl, halo- CrC6alkylsulfinyl, C2-C6alkenylthio, halo-C2-C6alkenylthio, C2-C6alkenylsulfinyl, halo- C2-C6alkenylsulfinyl, CrCealkylsuifonyl, halo-d-dalkylsulfonyl, C2-C6alkenyIsuIfonyl, halo- C2-C6alkenylsulfonyl, Cι-C6aIkylamino and di-d-dalkylamino;
Ri is hydrogen, d-dalkyl, halo-d-dalkyl, ally] or C-*-C6alkoxymethyl;
R2, R3, R4. R5, Re, R and R8 are either, independently of one another, hydrogen, halogen, unsubstituted or mono- or polyhalogenated d-C6alkyl, unsubstituted or mono- or polyhalogenated C2-C6alkenyl, unsubstituted or mono- or polyhalogenated C2-C6alkynyl; unsubstituted or mono- or polysubstituted d-dalkoxy, unsubstituted or mono- or polysubstituted halo-d-dalkoxy, unsubstituted or mono- or polysubstituted C3-C6cycloalkyl, in which the substituents in each case can be independent of one another and are chosen from the group consisting of halogen and d-dalkyl; or unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-dalkyl, halo-d-dalkyl, d-dalkoxy, halo-d-dalkoxy, d-dalkylthio, halo-C C6alkylthio, C C6alkylsulfinyl, halo- Cι-C6alkylsulfinyl, d-dalkylsulfonyl, halo-d-dalkylsulfonyl, CrC6alkylamino or di- d-dalkylamino; or R2 and R3 are jointly C2-C6alkylene; and
X is C(R3)(R4)-C(R5)(R6) or C(R7)=C(R8).
2. A compound of the formula I according to claim 1 , in which An and Ar2 are, independently of one another, unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, C C4alkyl, halo-C-*-C alkyl, d-C4alkoxy, halo-d- dalkoxy, C3-C5cycloalkyl, C3-C5cycloalkyloxy, C3-C5cycloalkylamino, d-dalkylthio, halo-C dalkylthio, Cι-C alkylamino, di-C C4alkylamino, Cι-C alkylcarbonyl, halo-d- C alkylcarbonyl, C C4alkoxycarbonyl, d-dalkylaminocarbonyl and di-d- C alkylaminocarbonyl; unsubstituted or mono- or polysubstituted phenylamino; unsubstituted or mono- or polysubstituted phenylcarbonyl; unsubstituted or mono- or polysubstituted phenyl, in which the substituents in each case can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-C4alkyl, halo- d-dalkyl, d-dalkoxy, halo-d-C alkoxy, C C4alkylthio and halo-Cι-C4alkylthio; unsubstituted or mono- or polysubstituted phenoxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, C C4alkyl, halo-Cι-C4alkyl, C C4alkoxy, halo-C C4alkoxy, d-C4alkylthio and halo- d-dalkylthio; and unsubstituted or mono- or polysubstituted pyridyloxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-dalkyl, halo-CrC4alkyl, d-C alkoxy, halo-d-dalkoxy, C dalkylthio and halo-d-C4alkylthio.
3. A compound of the formula I according to claim 1 , in which Ah and Ar2 are, independently of one another, unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-C4alkyl, halo-CrC4alkyl, d-C4alkoxy, halo- d-dalkoxy, d-dcycloalkyl, C3-C5cycloalkyloxy, C3-C5cycloalkylamino, C C4alkylcarbonyl, halo-d-C4alkylcarbonyl and d-C4alkoxycarbonyl; unsubstituted or mono- or polysubstituted phenylamino; unsubstituted or mono- or polysubstituted phenylcarbonyl; unsubstituted or mono- or polysubstituted phenyl, in which the substituents in each case can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-C alkyl, halo-Cι-C4alkyl, Cι-C4alkoxy and halo-Cι-C4alkoxy; and unsubstituted or mono- or polysubstituted phenoxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-C4alkyl, halo-d- dalkyl, d-dalkoxy and halo-C C4alkoxy.
4. A compound of the formula I according to claim 1 , in which Ar-* and Ar2 are, independently of one another, unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, cyano, CrC2alkyl, halo-C C2alkyl, C C2alkoxy, halo-d-dalkoxy, c3- dcycloalkyl, C3-C4cycloalkyloxy, C3-C cycloalkylamino, d-dalkylcarbonyl, halo-d- dalkylcarbonyl and C C2alkoxycarbonyl; unsubstituted or mono- or polysubstituted phenylamino; unsubstituted or mono- or polysubstituted phenylcarbonyl; unsubstituted or mono- or polysubstituted phenyl, in which the substituents in each case can be independent of one another and are chosen from the group consisting of halogen, cyano, d-dalkyl, halo-d-dalkyl, d-dalkoxy and halo-Cι-C2alkoxy; and unsubstituted or mono- or polysubstituted phenoxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, cyano, d-dalkyl, halo-d-dalkyl, d-dalkoxy and halo-d-dalkoxy.
5. A compound of the formula I according to claim 1 , in which Ri is hydrogen, d-C alkyl or halo-d-dalkyl.
6. A compound of the formula I according to claim 1, in which Ri is hydrogen or CrC2alkyl.
7. A compound of the formula I according to claim 1, in which R-* is hydrogen.
8. A compound of the formula I according to claim 1 , in which R2, R3, R , R5, R6, R7 and R8 are, independently of one another, hydrogen, halogen, unsubstituted or mono- or polyhalogenated d-C4alkyl, unsubstituted or mono- or polyhalogenated C2-C alkenyl, unsubstituted or mono- or polyhalogenated C2-C4alkynyl; unsubstituted or mono- or polysubstituted C C alkoxy, unsubstituted or mono- or polysubstituted haIo-CrC4alkoxy, d-dcycloalkyl, or unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, cyano, d-C4alkyl, halo-d-C4-alkyl, d-C4alkoxy and halo-C C4alkoxy.
9. A compound of the formula I according to claim 1 , in which R2, R3, R , R5, R6, R and R8 are, independently of one another, hydrogen, unsubstituted or mono- or polyhalogenated d-dalkyl, C3-C5cycloalkyl, or unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, d-C2alkyl or halo-d-dalkyl.
10. A compound of the formula I according to claim 1 , in which R2ι R3, R4, R5, R6, R and R8 are, independently of one another, hydrogen, d-C2alkyl or C3-C5cycloalkyl.
11. A compound of the formula I according to claim 1 , in which X is C(R3)(R )-C(R5)(R6).
12. A compound of the formula I according to claim 1 , in which An and Ar2 are, independently of one another, unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-dalkyl, halo-CrC4alkyl, d-C4alkoxy, halo-Cr dalkoxy, C3-C5cycloalkyl, C3-C5cycloaIkyloxy, C3-C5cycloalkylamino, d-dalkylthio, halo- d-dalkylthio, d-dalkylamino, di-Cι-C4alkylamino, CrC4alkylcarbonyl, halo- C C4alkylcarbonyl, d-C4alkoxycarbonyl, C C4alkyIaminocarbonyl and di-Cι-C alkylaminocarbonyl; unsubstituted or mono- or polysubstituted phenylamino; unsubstituted or mono- or polysubstituted phenylcarbonyl; unsubstituted or mono- or polysubstituted phenyl, in which the substituents in each case can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-dalkyl, halo- d-dalkyl, d-dalkoxy, halo-d-C4alkoxy, CrC4alkylthio and halo-C C4alkylthio; unsubstituted or mono- or polysubstituted phenoxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-C4alkyl, halo-d-dalkyl, d-daikoxy, halo-Cι-C4alkoxy, C C4alkylthio and halo- d-C4-alkylthio; and unsubstituted or mono- or polysubstituted pyridyloxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, Cι-C4alkyl, halo-d-C4alkyl, CrC4alkoxy, halo-d-C4alkoxy, Cr dalkylthio and halo-d-C4alkylthio;
Ri is hydrogen, C C4alkyl or halo-Cι-C4alkyl;
R2, R3, R4, R5, Re, R7 and R8 are, independently of one another, hydrogen, halogen, unsubstituted or mono- or polyhalogenated d-C4alkyl, unsubstituted or mono- or polyhalogenated C2-C alkenyl, unsubstituted or mono- or polyhalogenated C2-C alkynyl; unsubstituted or mono- or polysubstituted C C4alkoxy, unsubstituted or mono- or polysubstituted halo-d-dalkoxy, C3-C5cycloalkyl, or unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, cyano, C C4alkyl, halo-C-*-C4alkyl, Cr C4alkoxy and halo-Cι-C alkoxy; and
X is C(R3)(R4)-C(R5)(R6).
13. A compound of the formula I according to claim 1 , in which Ar-* and Ar2 are particularly, independently of one another, unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-C4alkyl, halo-d-C4alkyl, Cι-C4alkoxy, halo-Cr dalkoxy, C3-C5cycloalkyl, C3-C5cycloalkyloxy, C3-C5cycloalkylamino, d-C4alkylcarbonyl, halo-Cι-C4alkylcarbonyl and d-C4alkoxycarbonyl; unsubstituted or mono- or polysubstituted phenylamino; unsubstituted or mono- or polysubstituted phenylcarbonyl; unsubstituted or mono- or polysubstituted phenyl, in which the substituents in each case can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d- dalkyl, halo-d-dalkyl, C C4alkoxy and halo-C C alkoxy; and unsubstituted or mono- or polysubstituted phenoxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, nitro, cyano, d-dalkyl, halo-d-dalkyl, d-dalkoxy and halo-d-C4alkoxy;
Ri is hydrogen or d-C2alkyl;
R2, R3, R4. R5, Re, R7 and R8 are, independently of one another, hydrogen, unsubstituted or mono- or polyhalogenated d-C4alkyl, C3-C5cycloalkyl, or unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, d-C2alkyl or halo-C C4alkyl; and
X is C(R3)(R4)-C(R5)(R6).
14. A compound of the formula I according to claim 1 , in which An and Ar2 are, independently of one another, unsubstituted or mono- or polysubstituted phenyl, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, cyano, d-C2alkyl, halo-CrC2alkyl, d-dalkoxy, halo-CrC2alkoxy, C3- dcycloalkyl, C3-C cycloalkyloxy, C3-C4cycloalkylamino, CrC2alkylcarbonyl, halo-d- dalkylcarbonyl and d-dalkoxycarbonyl; unsubstituted or mono- or polysubstituted phenylamino; unsubstituted or mono- or polysubstituted phenylcarbonyl; unsubstituted or mono- or polysubstituted phenyl, in which the substituents in each case can be independent of one another and are chosen from the group consisting of halogen, cyano, d-C2alkyl, halo-d-dalkyl, CrC2alkoxy and halo-d-dalkoxy; and unsubstituted or mono- or polysubstituted phenoxy, in which the substituents can be independent of one another and are chosen from the group consisting of halogen, cyano, d-dalkyl, halo-d-dalkyl, Cι- dalkoxy and halo-CrC2alkoxy;
R is hydrogen;
R2, R3, R4. Rs, Re, R7 and R8 are, independently of one another, hydrogen, d-dalkyl or C3-C5cycloalkyl; and
X is C(R3)(R4)-C(R5)(R6).
15. A compound of the formula I according to claim 1, with the name N-(1-cyano-1-methyl- 3-[2-trifluoromethylphenyl]propyl)-4-trifluoromethoxybenzamide.
16. A process for the preparation of a compound of the formula I, in each case in the free form or in the salt form, according to claim 1 , which comprises the reaction of a compound of the formula
Figure imgf000053_0001
which is known or can be prepared by analogy to relevant known compounds and in which R-i, R2, X and Ar2 are as defined above in the formula I, with a compound of the formula
A ιv Q
Y o ■*■ which is known or can be prepared by analogy to relevant known compounds and in which A is as defined above in the formula I and Q is a leaving group, if desired in the presence of a basic catalyst, and in each case, if desired, the conversion of a compound of the formula I obtainable according to the process or in another way, in each case in the free form or in the salt form, to another compound of the formula I, the separation of a mixture of isomers obtainable according to the process and the isolation of the desired isomer and/or the conversion of a free compound of the formula I obtainable according to the process to a salt or the conversion of a salt of a compound of the formula I obtainable according to the process to the free compound of the formula I or to another salt.
17. A process for the preparation of a compound of the formula II, in each case in the free form or in the salt form, which comprises the reaction of a compound of the formula
Figure imgf000054_0001
which is known or can be prepared by analogy to relevant known compounds and in which R2, X and Ar are as defined in the formula I, with an inorganic or organic cyanide and a compound of the formula Rι-NH2, which is known or can be prepared by analogy to relevant known compounds and in which R-* is as defined in the formula I, and in each case, if desired, the conversion of a compound of the formula II obtainable according to the process or in another way, in each case in the free form or in the salt form, to another compound of the formula II, the separation of a mixture of isomers obtainable according to the process and the isolation of the desired isomer and/or the conversion of a free compound of the formula II obtainable according to the process to a salt or the conversion of a salt of a compound of the formula II obtainable according to the process to the free compound of the formula II or to another salt.
18. A composition for controlling parasites, which comprises, in addition to carriers and/or dispersants, at least one compound of the formula I according to claim 1 as active ingredient.
19. The use of a compound of the formula I according to claim 1 for controlling parasites.
20. A method for controlling parasites, which comprises the use, against the parasites, of an effective amount of at least one compound of the formula I according to claim 1.
21. The use of a compound of the formula I according to claim 1 in a method for controlling parasites in warm-blooded animals.
22. The use of a compound of the formula I according to claim 1 for preparing a pharmaceutical composition against parasites in warm-blooded animals.
PCT/EP2002/013811 2001-12-06 2002-12-05 Aminoacetonitrile derivatives and their use for controlling parasites WO2003048112A1 (en)

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