Method for production of 5-chloro-4-[(2-imidazoline-2-yl)amino]-2,1,3-benzothiadiazole hydrochloride

FIELD: organic chemistry.

SUBSTANCE: method relates to new method for production of 5-chloro-4-[(2-imidazoline-2-yl)amino]-2,1,3-benzothiadiazole hydrochloride of formula I . Claimed compound is high effective drug and is used in medicine as myorelaxant of central action. Claimed method includes condensation of N,N-dimethyldichloromethyleneammonium chloride with 5-chloro-4-amino-1,1,3-benzothiadiazole in organic solvent followed by treatment of formed alpha-chloroformamidine of formula R-N=C(Cl)N(CH3)2, wherein R is 5-chloro-2,1,3-benzothiazol-4-yl, with ethylenediamine. Formed intermediate of formula R-N=C(NH-CH2-CH2-NH2)N(CH3)2 is treated with hydrochloric acid, heated in organic solvent and 5-chloro-4-[(2-imidazoline-2-yl)amino]-2,1,3-benzothiadiazole hydrochloride of formula I is isolated.

EFFECT: simplified method for preparation of target compound directly in hydrochloride form.

 

The invention relates to the field of organic chemistry, namely, the method of production of 5-chloro-4-[(2-imidazolin-2-yl)amino]-2,1,3-benzothiadiazole hydrochloride (tizanidina; I). Tizanidine in hydrochloride is a highly effective drug and is used in medical practice as a Central muscle relaxant actions.

The number of known methods of synthesis tizanidina [U.S. Patent No. 3.843.668, class C 07 D 91/68, publ. 22 Oct. 1974; the Federal Republic of Germany Patent No. 36.10.407, class C 07 D 417/12, publ. 1 Oct. 1987], according to which the drug is produced by the interaction of ethylene diamine derivative 2,1,3-benzothiadiazole formulas II-IV with the release of 40-70%:

The main disadvantage of these methods is the technological complexity of obtaining compounds II-IV, as well as the high toxicity of volatile mercaptans, released in case of interaction thioureas II, III with Ethylenediamine.

Tizanidine (I) can also be derived from imidazoline V, VI when interacting with 5-chloro-4-amino-2,1,3-benzothiadiazole (VII) [Japan Patent No. 08176150, class C 07 D 417/12, publ. 9 July 1996; European patent No. 0.644.192, class C 07 D 417/12, publ. December 18, 1996] according to the scheme:

In the case of inaccessible 2-Chloromycetin-2 (V) tizanidine is obtained in the form of a base with a yield of about 30%, though the interaction of 1-ellimination-2 (VI) with an amine VII process performed within 30-50 h in the presence of 20-fold excess of phosphorus oxychloride. The output of the base tizanidina is 70-80%.

We have developed a new way to get tizanidina I of amine VII and N,N-dimethyldiallylammonium chloride (VIII). According to our proposed method, Imani chloride” VIII obtained from tetramethylthiuramdisuphide (IX) [H.G.Vich, Z.Janousek, Angew.Chem., 85, №19, 837 (1973 g)], condensed with the amine VII in an organic solvent, such as methylene chloride, and get N,N-dimethyl-N1-(5-chloro-2,1,3-benzothiadiazole-4-yl)-α-chlorpropamide (X). Of X when interacting with Ethylenediamine and subsequent heating of the resulting N1N-dimethyl-N1-(5-chloro-2,1,3-benzothiadiazole-4-yl)-N11-(β-amino-ethyl)guanidine (XI) in an organic solvent, for example ethylene glycol, in the presence of hydrogen chloride get tizanidine hydrochloride I:

The method is technologically simple, is highlighting only one of the intermediate product X and provides a high output tizanidina obtained in the synthesis process in the form of hydrochloride.

Example 1. Obtaining N,N-dimethyl-N1-(5-chloro-2,1,3-benzothiadiazole-4-yl)-α-chlorpromazine (X)

To a suspension of 8.6 g “Imani chloride” VIII obtained from 7,05 g turama IX, in 40 ml of methylene chloride is added at boiling 8,18 g amine VII in 40 ml of chloride IU Elena and boiled for 1.5 h; the solvent is then distilled off, the residue is diluted with petroleum ether, the precipitate is filtered off, get 11 g X (90%) TPL 88-90°C (from petroleum ether).

Found, %: 39.21; N 3,05; N 20,41; S 11,47; Cl 25,82.

Calculated, %: C at 39.28; N 2,92; N 20,36; S 11,65; Cl 25,77.

Example 2. Getting 5-chloro-4-[(2-imidazolin-2-yl)amino]-2,1,3-benzothiadiazole hydrochloride (I) (tizanidina hydrochloride)

To 22 ml of Ethylenediamine was added 11 g of chlorpromazine X and stirred at 25-40°C for 30 minutes the resulting solution was diluted with 70 ml of water, sediment XI is filtered off, washed with 20 ml of water. The wet product is suspended in 25 ml of water, acidified to pH 1 35%aqueous hydrochloric acid, then water is distilled off in vacuo, to the residue was added 25 ml of ethylene glycol and boil for 2 hours then the solvent is distilled in vacuo, to the residue add 10 ml of water, stirred and the precipitate is filtered off, washed with water and acetone. Receive 6 g) of the hydrochloride, which is 52% of theoretical calculated on chlorpropamide X and 47.1% in the calculation of the amine VII. TPL 290-292°C.

The way to obtain 5-chloro-4-[(2-imidazolin-2-yl)amino]-2,1,3-benzothiadiazole hydrochloride (tizanidina hydrochloride), characterized in that N,N-dimethyldiallylammonium chloride of the formula (CH3)2N+=CCl2C1-condensed with 5-chloro-4-amino-2,1,3-benzothiadiazole in organic races is varicela, for example in methylene chloride, formed α-chlorpropamide formula R-N=C(Cl)N(CH3)2where R represents 5-chloro-2,1,3-benzothiadiazole-4-yl, treated with Ethylenediamine, receiving the intermediate product of the formula R-N=C(NH-CH2-CH2-NH2)N(CH3)2which is treated with hydrochloric acid and heated in an organic solvent, for example ethylene glycol, and produce 5-chloro-4-[(2-imidazolin-2-yl)amino]-2,1,3-benzothiadiazole hydrochloride (tizanidina hydrochloride).



 

Same patents:

FIELD: pharmaceutical industry, medicine.

SUBSTANCE: invention relates to 5-membered N-heterocyclic compounds and salts thereof having hypoglycemic and hypolipidemic activity of general formula I , wherein R1 is optionally substituted C1-C8-alkyl, optionally substituted C6-C14-aryl or optionally substituted 5-7-membered heterocyclic group, containing in ring 1-4 heteroatoms selected from oxygen, sulfur and nitrogen; or condensed heterocyclic group obtained by condensation of 5-7-membered monoheterocyclic group with 6-membered ring containing 1-2 nitrogen atoms, benzene ring, or 5-membered ring containing one sulfur atom; { is direct bond or -NR6-, wherein R6 is hydrogen atom or C1-C6-alkyl; m = 0-3, integer; Y is oxygen, -SO-, -SO2- or -NHCO-; A ring is benzene ring, condensed C9-C14-aromatic hydrocarbon ring or 5-6-membered aromatic heterocyclic ring containing 1-3 heteroatoms selected from oxygen and nitrogen, each is optionally substituted with 1-3 substituents selected from C7-C10-aralkyloxy; hydroxyl and C1-C4-alkoxy; n = 1-8, integer; B ring is nitrogen-containing 5-membered heterocycle optionally substituted with C1-C4-alkyl; X1 is bond, oxygen or -O-SO2-; R2 is hydrogen atom, C1-C8-alkyl, C7-C13-aralkyl or C6-C14-aryl or 5-6-membered heterocyclic group containing in ring 1-3 heteroatoms selected from oxygen, sulfur and nitrogen, optionally substituted with 1-3 substituents; W is bond, C1-C20-alkylene or C1-C20-alkenylene; R3 is -OR8 (R8 is hydrogen or C1-C4-alkyl) or -NR9R10 (R9 and R10 are independently hydrogen or C1-C4-alkyl). Compounds of present invention are useful in treatment of diabetes mellitus, hyperlipidemia, reduced glucose tolerance, and controlling of retinoid-associated receptor.

EFFECT: new medicines for treatment of diabetes mellitus, hyperlipidemia, etc.

26 cl, 518 ex, 3 tbl

FIELD: organic chemistry, pharmaceutical composition.

SUBSTANCE: new isoindoline-1-on-glucokinase activators of general formula I , as well as pharmaceutically acceptable salts or N-oxide thereof are disclosed. In formula A is phenyl optionally substituted with one or two halogen or one (law alkyl)sulfonyl group, or nitro group; R1 is C3-C9cycloalkyl; R2 is optionally monosubstituted five- or six-membered heterocyclic ring bonded via carbon atom in cycle to amino group, wherein five- or six-membered heteroaromatic ring contains one or two heteroatoms selected form sulfur, oxygen or nitrogen, one of which is nitrogen atom adjacent to carbon atom bonded to said amino group; said cycle is monocyclic or condensed with phenyl via two carbon atoms in cycle; said monosubstituted with halogen or law alkyl heteroaromatic ring has monosubstituted carbon atom in cycle which in not adjacent to carbon atom bonded to amino group; * is asymmetric carbon atom. Claimed compounds have glucokinase inhibitor activity and useful in pharmaceutical composition for treatment of type II diabetes.

EFFECT: new isoindoline-1-on-glucokinase activators useful in treatment of type II diabetes.

23 cl, 3 dwg, 43 ex

FIELD: organic chemistry, heterocyclic compounds, medicine, pharmacy.

SUBSTANCE: invention relates to derivatives of heteroarylalkylpiperazine of the general formula (I):

wherein m = 1, 2 or 3; q means NH or oxygen atom (O); R1, R2, R3, R4 and R5 are taken independently among the group including hydrogen atom, (C1-C15)-alkyl, OR20 wherein R20 represents hydrogen atom; R6, R7 and R8 represent hydrogen atom; R9, R10, R11, R12, R13, R14, R15 and R16 are taken independently among the group including hydrogen atom, (C1-C4)-alkyl; or R9 and R10 in common with carbon atom to which they are joined form carbonyl group; R17 means heteroaryl that is taken among the group including indolyl, benzoxazolyl, benzothiazolyl, quinolinyl, isoquinolinyl, pyridyl, benzopyrazinyl substituted optionally with 1-2 substitutes taken among the group including hydrogen atom, CF3 group, (C1-C8)-alkyl, phenyl, CON(R20)2. Compounds elicit property as a partial inhibitor of oxidation of fatty acids and can be used in therapy for protection of skeletal muscles against results of muscular or systemic diseases. Also, invention describes a pharmaceutical composition based on the claimed compounds.

EFFECT: valuable medicinal properties of compounds.

39 cl, 3 tbl, 25 ex

The invention relates to organic chemistry and can find application in medicine

The invention relates to new derivatives of nitrogen-containing heterocyclic compounds of the formula

or their pharmaceutically acceptable salts, where R1represents H, COCOR2, COOR3or SO2R3, R2is1-6alkyl, C1-6alkenyl,5-7cycloalkyl, 2-thienyl, 3-thienyl, phenyl or substituted phenyl, R3is phenylalkyl,represents a saturated five-membered nitrogen-containing heterocyclic ring with one nitrogen atom or benzododecinium saturated six-membered nitrogen-containing heterocyclic ring;is oxazol, oxadiazole or thiazole, And is associated with carbon atom of the five-membered heteroaromatic rings and represents COO(CH2)mAr,where R1has the values listed above or is CONR4(CH2)mAr or (CH2)mO(CH2)nAr and R1cannot be COCOR2or SO2R3, R4represents H or<

The invention relates to sulfhemoglobinemia heterocyclic compound represented by formula (I), its pharmaceutically acceptable salts and their hydrates

where the values of A, B, K, T, W, X, Y, U, V, Z, R1specified in paragraph 1 of the claims

The invention relates to new and nitrate salts of compounds of formulas (I) to(VI), which can be used in medicine for the treatment of bone disorders such as abnormalities in bone and joints
The invention relates to a method for producing 5-chloro-4-/(2-imidazolin-2-yl)amino/-2,1,3-benzothiadiazole the hydrochloride by hydrochlorination 5-chloro-4-/(2-imidazolin-2-yl)amino/-2,1,3-benzothiadiazole of concentrated hydrochloric acid in the environment of ethyl alcohol at 20-35With target product is separated from the reaction mixture by dilution with water, heating to 75-80With that clarification of the resulting solution activated carbon, cooling the clarified solution to 0-2With, then the selected product is filtered, washed with alcohol and dried at 70C in vacuum (120 mm RT.CT.) get 5-chloro-4-/(2-imidazolin-2-yl)amino/-2,1,3-benzothiadiazole hydrochloride with a melting point 292-294C (with decomposition) and mass fractions of the main substance of at least 99.8%, the product yield is 80% on the original basis

The invention relates to compounds of formula (I)

in which f represents phenylenebis radical, a represents the radical

in which Rl, R2, R3, R4, R5represent independently a hydrogen atom, IT is a group or an unbranched or branched alkyl or alkoxyalkyl having from 1 to 6 carbon atoms; R11represents a hydrogen atom, an unbranched or branched alkyl radical having from 1 to 6 carbon atoms, or the radical

in which Rl, R2, R3, R4, R5represent independently a hydrogen atom, IT is a group or an unbranched or branched alkyl or alkoxyalkyl having from 1 to 6 carbon atoms; b is a thiophene; W is absent or represents an Association or S; X represents a bond or a radical -(CH2)k-NR16-, -O-, -CO-, -NR16-CO-, and so forth, and k is 0 or 1; Y represents a bond or a radical selected from the radicals -(CH2)m-, -(CH2)m-O-(CH2)n, -(CH-Q-(CH2)n; and Q represents pieperazinove radical, m and n are equal to integers from 0 to 6; R16, R17, R18represent independently a hydrogen atom, or a salt of the compounds

The invention relates to new effectors dipeptidylpeptidase IV - the dipeptide mimetics (I) formed from amino acids and thiazolidinone or pyrrolidino groups, namely: L-ALLO-isoleucyl-thiazolidine, L-ALLO-isoleucyl-pyrrolidino and their salts, salts of L-threo-isoleucyl-thiazolidine and L - threo-isoleucyl-pyrrolidine; a pharmaceutical composition having the ability to lower blood sugar, containing at least one of the above-mentioned compounds (1)

FIELD: organic chemistry, heterocyclic compounds, medicine, pharmacy.

SUBSTANCE: invention relates to derivatives of heteroarylalkylpiperazine of the general formula (I):

wherein m = 1, 2 or 3; q means NH or oxygen atom (O); R1, R2, R3, R4 and R5 are taken independently among the group including hydrogen atom, (C1-C15)-alkyl, OR20 wherein R20 represents hydrogen atom; R6, R7 and R8 represent hydrogen atom; R9, R10, R11, R12, R13, R14, R15 and R16 are taken independently among the group including hydrogen atom, (C1-C4)-alkyl; or R9 and R10 in common with carbon atom to which they are joined form carbonyl group; R17 means heteroaryl that is taken among the group including indolyl, benzoxazolyl, benzothiazolyl, quinolinyl, isoquinolinyl, pyridyl, benzopyrazinyl substituted optionally with 1-2 substitutes taken among the group including hydrogen atom, CF3 group, (C1-C8)-alkyl, phenyl, CON(R20)2. Compounds elicit property as a partial inhibitor of oxidation of fatty acids and can be used in therapy for protection of skeletal muscles against results of muscular or systemic diseases. Also, invention describes a pharmaceutical composition based on the claimed compounds.

EFFECT: valuable medicinal properties of compounds.

39 cl, 3 tbl, 25 ex

FIELD: organic chemistry, pharmaceutical composition.

SUBSTANCE: new isoindoline-1-on-glucokinase activators of general formula I , as well as pharmaceutically acceptable salts or N-oxide thereof are disclosed. In formula A is phenyl optionally substituted with one or two halogen or one (law alkyl)sulfonyl group, or nitro group; R1 is C3-C9cycloalkyl; R2 is optionally monosubstituted five- or six-membered heterocyclic ring bonded via carbon atom in cycle to amino group, wherein five- or six-membered heteroaromatic ring contains one or two heteroatoms selected form sulfur, oxygen or nitrogen, one of which is nitrogen atom adjacent to carbon atom bonded to said amino group; said cycle is monocyclic or condensed with phenyl via two carbon atoms in cycle; said monosubstituted with halogen or law alkyl heteroaromatic ring has monosubstituted carbon atom in cycle which in not adjacent to carbon atom bonded to amino group; * is asymmetric carbon atom. Claimed compounds have glucokinase inhibitor activity and useful in pharmaceutical composition for treatment of type II diabetes.

EFFECT: new isoindoline-1-on-glucokinase activators useful in treatment of type II diabetes.

23 cl, 3 dwg, 43 ex

FIELD: pharmaceutical industry, medicine.

SUBSTANCE: invention relates to 5-membered N-heterocyclic compounds and salts thereof having hypoglycemic and hypolipidemic activity of general formula I , wherein R1 is optionally substituted C1-C8-alkyl, optionally substituted C6-C14-aryl or optionally substituted 5-7-membered heterocyclic group, containing in ring 1-4 heteroatoms selected from oxygen, sulfur and nitrogen; or condensed heterocyclic group obtained by condensation of 5-7-membered monoheterocyclic group with 6-membered ring containing 1-2 nitrogen atoms, benzene ring, or 5-membered ring containing one sulfur atom; { is direct bond or -NR6-, wherein R6 is hydrogen atom or C1-C6-alkyl; m = 0-3, integer; Y is oxygen, -SO-, -SO2- or -NHCO-; A ring is benzene ring, condensed C9-C14-aromatic hydrocarbon ring or 5-6-membered aromatic heterocyclic ring containing 1-3 heteroatoms selected from oxygen and nitrogen, each is optionally substituted with 1-3 substituents selected from C7-C10-aralkyloxy; hydroxyl and C1-C4-alkoxy; n = 1-8, integer; B ring is nitrogen-containing 5-membered heterocycle optionally substituted with C1-C4-alkyl; X1 is bond, oxygen or -O-SO2-; R2 is hydrogen atom, C1-C8-alkyl, C7-C13-aralkyl or C6-C14-aryl or 5-6-membered heterocyclic group containing in ring 1-3 heteroatoms selected from oxygen, sulfur and nitrogen, optionally substituted with 1-3 substituents; W is bond, C1-C20-alkylene or C1-C20-alkenylene; R3 is -OR8 (R8 is hydrogen or C1-C4-alkyl) or -NR9R10 (R9 and R10 are independently hydrogen or C1-C4-alkyl). Compounds of present invention are useful in treatment of diabetes mellitus, hyperlipidemia, reduced glucose tolerance, and controlling of retinoid-associated receptor.

EFFECT: new medicines for treatment of diabetes mellitus, hyperlipidemia, etc.

26 cl, 518 ex, 3 tbl

FIELD: organic chemistry.

SUBSTANCE: method relates to new method for production of 5-chloro-4-[(2-imidazoline-2-yl)amino]-2,1,3-benzothiadiazole hydrochloride of formula I . Claimed compound is high effective drug and is used in medicine as myorelaxant of central action. Claimed method includes condensation of N,N-dimethyldichloromethyleneammonium chloride with 5-chloro-4-amino-1,1,3-benzothiadiazole in organic solvent followed by treatment of formed alpha-chloroformamidine of formula R-N=C(Cl)N(CH3)2, wherein R is 5-chloro-2,1,3-benzothiazol-4-yl, with ethylenediamine. Formed intermediate of formula R-N=C(NH-CH2-CH2-NH2)N(CH3)2 is treated with hydrochloric acid, heated in organic solvent and 5-chloro-4-[(2-imidazoline-2-yl)amino]-2,1,3-benzothiadiazole hydrochloride of formula I is isolated.

EFFECT: simplified method for preparation of target compound directly in hydrochloride form.

FIELD: organic chemistry, chemical technology, agriculture.

SUBSTANCE: invention describes substituted azadioxocycloalkenes of the general formula (I): wherein A means unsubstituted or methyl-substituted dimethylene; Ar means unsubstituted or fluorine-substituted ortho-phenylene, thiophendiyl or pyridindiyl; E means group of the formula: wherein G means oxygen atom, groups -O-CH2-, -CH2-O- or -C(CH3)=N-O-CH2-; Z means unsubstituted or substituted phenyl, pyrimidinyl or thiadiazolyl, or naphthyl. Invention describes 4 methods for preparing compounds of the formula (I), 5 species of intermediate compounds used for preparing compounds of the formula (I), fungicide agents comprising compound of the formula (I) as an active substance, a method for preparing fungicide agents, method for control of harmful fungi using compound of the formula (I). Compounds of the formula (I) show fungicide properties and therefore they can be used in agriculture.

EFFECT: improved preparing methods, valuable properties of compounds.

13 cl, 5 tbl, 18 ex

FIELD: organic chemistry, pesticides, agriculture.

SUBSTANCE: invention relates to compounds that elicit high pesticide activity and can be used in control of pests of domestic and agricultural animals. Indicated compounds show the formula (I):

wherein R1 means halogen atom, (C1-C6)-halogenalkyl; R2 means hydrogen atom (H), (C1-C6)-alkyl, (C1-C6)-alkylene-phenyl; X1 means nitrogen atom (N); X2 means group C(CN); X3 means oxygen atom (O); Q means CH; R3 and R4 mean independently of one another hydrogen atom (H) or in common with carbon atom with which they are bound form (C3-C7)-cycloalkyl ring; R5 means a substitute taken among group including (C1-C6)-halogenalkyl, halogen atom being if m above 1 then substitutes R5 can be similar or different; m = 1, 2 or 3; n = 0 or 1. Also, invention describes a method for their preparing and method for control of pests.

EFFECT: valuable pesticide properties of compounds.

7 cl, 3 tbl, 14 ex

FIELD: organic chemistry, medicine, pharmacy.

SUBSTANCE: invention relates to biologically active compounds, in particular, to substituted 5R1,6R2-thiadiazine-2-amines and pharmaceutical compositions comprising thereof that can be used in medicine as potential pharmacologically active substances eliciting the unique combination of properties: expressed anticoagulant activity in combination with capacity to inhibit aggregation of platelets. Effect of these substances differ from preparations used in medicinal practice and they can be used therefore in treatment of such diseases as myocardium infarction, disturbance in cerebral circulation, rejection of transplanted organs and tissues and so on. Indicated compounds correspond to the formula (I):

wherein values of radicals R1, R2 and R3 are given in the invention claim.

EFFECT: valuable medicinal properties of compounds.

4 cl, 2 tbl, 7 dwg, 33 ex

FIELD: organic chemistry, chemical technology, medicine.

SUBSTANCE: invention relates to a method for preparing derivatives of indole of the general formula (I):

wherein R1 represents hydroxy-group; R2 represents hydrogen atom, (C1-C6)-alkyl, (C1-C6)-alkoxy-group, (C2-C6)-alkoxyalkyl or 4-methoxybenzyl; R3 represents hydrogen atom or (C1-C6)-alkyl; each among R4 and R represents independently hydrogen atom, (C1-C6)-alkyl or (C1-C6)-alkoxy-group; D represents an ordinary bond, (C1-C6)-alkylene, (C2-C6)-alkenylene or (C1-C6)-oxyalkylene; in the group-G-R6 wherein G represents an ordinary bond, (C1-C6)-alkylene; R represents saturated or unsaturated carbocyclic ring (C3-C15) or 4-15-membered heterocyclic ring comprising 1-5 atoms of nitrogen, sulfur and/or oxygen wherein this ring can be substituted. Also, invention describes a method for preparing derivatives of indole and DP-receptor antagonist comprising derivative of the formula (I) as an active component. As far as compounds of the formula (I) bind with DP-receptors and they are antagonists of DP-receptors then they can be useful for prophylaxis and/or treatment of diseases, for example, allergic diseases.

EFFECT: improved preparing method, valuable medicinal properties of compounds.

11 cl, 7 tbl, 353 ex

FIELD: pharmaceutical chemistry, medicine.

SUBSTANCE: invention relates to substituted pyridines and pyridazines with angiogenesis inhibition activity of general formula I

(I)1, wherein ring containing A, B, D, E, and L represents phenyl or nitrogen-containing heterocycle; X and Y are various linkage groups; R1 and R2 are identical or different and represent specific substituents or together form linkage ring; ring J represents aryl, pyridyl or cycloalkyl; and G's represent various specific substituents. Also disclosed are pharmaceutical composition containing claimed compounds, as well as method for treating of mammalian with abnormal angiogenesis or treating of increased penetrability using the same.

EFFECT: new pyridine and pyridazine derivatives with angiogenesis inhibition activity.

26 cl, 6 tbl, 114 ex

FIELD: organic chemistry, herbicides, agriculture.

SUBSTANCE: invention elates to novel derivatives of uracil of the formula [I] possessing herbicide activity, a herbicide composition based on thereof and to a method for control of weeds. In derivatives of uracil of the formula [I] the group Q-R3 represents a substituted group taken among:

wherein a heterocyclic ring can be substituted with at least a substitute of a single species taken among the group involving halogen atom, (C1-C6)-alkyl-(C1-C6)-alkoxy; Y represents oxygen, sulfur atom, imino-group or (C1-C3)-alkylimino-group; R1 represents (C1-C3)-halogenalkyl; R2 represents (C1-C3)-alkyl; R3 represents OR7, SR8 or N(R9)R10; X1 represents halogen atom, cyano-group, thiocarbamoyl or nitro-group; X2 represents hydrogen or halogen atom wherein each among R7, R8 and R10 represents independently carboxy-(C1-C6)-alkyl and other substitutes given in the invention claim; R9 represents hydrogen atom or (C1-C6)-alkyl. Also, invention relates to intermediate compounds used in preparing uracil derivatives.

EFFECT: improved preparing method, valuable properties of compounds.

40 cl, 16 sch, 12 tbl, 65 ex

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