1-ethyl-6-fluoro-4-oxo-7-(8-ethoxy-2-oxo-2h-chromen-3-yl)-1,4-dihydroquinoline-3-carboxylic acid with anti-tubercular activity

FIELD: pharmacology.

SUBSTANCE: invention relates to a fluoroquinolone carboxylic acid derivative, namely 1-ethyl-6-fluoro-4-oxo-7-(8-ethoxy-2-oxo-2H-chromen-3-yl)-1,4-dihydroquinoline-3 carboxylic acid of formula

.

EFFECT: high antitubercular activity, including that with respect to strains of mycobacteria with multiple drug resistance.

2 tbl, 1 ex

 



 

Same patents:

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to organic chemistry, namely to benzimidazole-4-carboxamide derivatives of formula , wherein X means an alkenyl group C2-C7 substituted by two methyls, nitro-radical mono-substituted thienyl, unsubstituted quinolinyl, unsubstituted indolyl, unsubstituted pyridazinyl, unsubstituted piperazinyl, C1-C6-alkyl disubstituted piperazinyl, unsubstituted piperidinyl, unsubstituted pyrazinyl, unsubstituted imidazolyl, unsubstituted pyrimidinyl, phenyl monosubstituted pyrimidinyl, pyrimidinyl disubstituted by an amine radical and a radical specified in a group containing -F, -Cl, -Br or -I, hydroxyl trisubstituted phenyl, methoxy-radical trisubstituted phenyl, hydroxyl and methoxy-radical disubstituted phenyl, pyrazolyl disubstituted by a radical specified in a group containing a C1-C6-alkyl, and by a radical specified in a group containing -F, -C1, -Br or -I; Y means aminophenyl monosubstituted by a radical of -F, -O, -Br or -I phenyl, hydroxyethyl disubstituted by hydroxymethyl or C1-C6-alkyl and phenyl monosubstituted by a nitro group, an amino group or a halogen atom; Y also means unsubstituted piperazinyl, unsubstituted pyridyl, unsubstituted pyrazinyl, C1-C6-alkyl monosubstituted thiazol, unsubstituted pyrimidinyl, unsubstituted purinyl. The invention also refers to a pharmaceutical composition based on the compound of formula (I), using the compound of formula (I), a method for producing the compound of formula (I).

EFFECT: there are prepared new benzimidazol-4-carboxamide derivatives possessing antiviral activity.

5 cl, 6 dwg, 4 tbl, 688 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to a compound of the general formula

,

wherein R1/R2 independently represent hydrogen, (CR2)o-C3-7 cycloalkyl optionally substituted by a lower alkyl or hydroxy, or represent a lower alkyl or tetrahydropyranyl, and o represents 0 or 1; and R can be identical or different, and represent hydrogen or a lower alkyl; or R1 and R2 can form together with a N atom to which they are attached, a heterocycloalkyl group specified in a group consisting of pyrrolidinyl, piperidinyl, 3-aza-bicyclo[3.1.0]hex-3-yl or 2-aza-bicyclo[3.1.0]hex-2-yl which are optionally substituted by hydroxy; R3 represents an S-lower alkyl, lower alkyl, lower alkoxy or C3-7 cycloalkyl; R3′ represents hydrogen, a lower alkyl substituted by a halogen, lower alkyl or lower alkoxy; R4 represents a lower alkyl substituted by a halogen; X represents -O- or -CH2-; X' represents -O- or -CH2-; provided one of X or X' always represent -O- and the other represents -CH2-; or a pharmaceutically acceptable acid-additive mixture, a racemic mixture, or a respective enantiomer and/or an optical isomer.

EFFECT: compounds of the general formula (I) are good inhibitors of glycine transporter 1 (GlyT-1) and hence can be used for treating schizophrenia and other neurological conditions, including pain.

13 cl, 1 tbl, 63 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention relates to novel compounds of general formula (I) or their pharmaceutically acceptable salts, which possess properties of RNA-polymerase inhibitor, in particular HCV inhibitor. Such disease can be hepatitis C. In formula (I)

is selected from the group, including simple carbon-carbon bond and double carbon-carbon bond; R1 represents hydrogen atom; R2 represents hydrogen atom; R3 represents hydrogen atom; R4 is selected from the group, including

and ,

R5 is selected from the group, including hydrogen atom, C1-C6alkyl and C1-C6alkyloxy; R6 is selected from the group, including hydrogen atom, C1-C6alkyl and C1-C6alkyloxy; R7 is selected from the group, including hydrogen atom, phenyl, 5-membered heterocycle, carbocycle with 2 condensed cycles, where 5-membered heterocycle contains at least 1 heteroatom, selected from the group, consisting of N, O and S, and where phenyl, heterocycle and carbocycle with 2 condensed cycles are optionally substituted with at least one of RJ and RK.

EFFECT: compounds can be used for treatment of disease, which can be treated by HCV inhibition.

21 cl, 2 tbl, 7 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to organic chemistry, namely to compounds of formula (I), wherein R1 and R2 independently represent C6-C10 aryl optionally substituted by -OH, halogen, -OC1-C3 alkyl, -NO2, -CF3 or C1-C3 alkyl, or 5- or 6-merous heteroaryl containing one heteroatom specified in N, S and O; A and M independently represent a methylene group or a single bond; an adjacent aromatic cycle is attached directly to an amide group; the group Y=Z represents together and irregularly oxygen atom (-O-), cis-vinylidene group (-CH=CH-), iminogroup (-N=CH- or -CH=N-) or methylene group with sp2-hybridised carbon atom (=CH-); X irregularly represents methine group (=CH-), cis-vinylidene group (-CH=CH-) or carbon atom (=N-), and W represents hydroxyl group (-OH), C1-C6 alkyl optionally substituted by -SH, 5- or 6-merous heteroaryl containing 1 to 2 nitrogen heteroatoms, or C6-C10 aryl, optionally substituted by -SH, -NH2, and their pharmaceutically acceptable salts.

EFFECT: described are the methods for preparing the compounds, using as a drug for treating cancer and the based pharmaceutical composition.

14 cl, 6 tbl, 49 ex

FIELD: medicine.

SUBSTANCE: invention refers to using 3',4'-methylene dioxy-5'-methoxyflavones as a specific marker for standardising an elevated portion of cowslip primrose (medicinal) (Primula veris L., or Primula officinalis (L.) Hill.).

EFFECT: extension of the list of specific marker substances for standardising the medicinal herbs.

7 dwg, 3 tbl

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention relates to novel compounds of formula

,

where values A, R1-R6 are given in i.1 of the invention formula. Methods of obtaining the formula (I) compound are described.

EFFECT: compounds demonstrate an inhibiting activity of the cathepsin enzyme, which makes it possible to use them for the preparation of a pharmaceutical composition and for the preparation of a medication.

38 cl, 12 dwg, 495 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method of obtaining pyripyropene derivatives, namely a compound of formula C: , where R represents a linear chain, a branched chain or cyclic C2-6alkylcarbonyl, on condition that, when an alkyl fragment in an alkylcarbonyl group represents a branched chain or a cyclic group, R represents C3-6alkylcarbonyl, including: selective acylation of hydroxyl groups in 1-position and 11-position of a compound B1, represented by formula B1: with an acylating agent in one-three stages in the presence or absence of a base. (i) compound C is obtained by acylation of hydroxyl groups in 1-position and 11-position of the compound B1 in one stage; (ii) method, including obtaining the compound C by acylation in two stages, consisting of stages: acylation of the hydroxyl group in 11-position of the compound B1 with the acylating agent with obtaining the compound B2, represented by formula B2: , where R is determined in formula C; and additional acylation of the hydroxyl group in 1-position of the compound B2; or (iii) method, including obtaining the compound C by acylation in three stages, consisting of stages: acylation of the hydroxyl group in 11-position of the compound B1 with obtaining the compound B2, represented by formula B2: , where R is determined in the formula C; transfer of acyl in 11-position of the compound B2 to hydroxyl in 1-position with obtaining the compound B3, represented by formula B3: , where R is such as determined in the formula C; and acylation of hydroxyl group in 11-position of the compound B3.

EFFECT: increased output.

16 cl, 1 dwg, 3 tbl, 22 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to a compound presented by formula (E) , wherein X, Y and L are independently non-directionally specified in -C(R1)(R2)-, -C(R3)=, -N(R4)-, -N= and -O-; M and Z are independently non-directionally specified in ; ---- means an optional double bond; R1, R2, R3, R4 and R6 are independently specified in hydrogen; C1-4 alkyl; group -C1-4 alkylene-halogen; group -C1-4 alkylene-OH; Hal is specified in F, Cl, Br and I; RE1 and RE2 are attached to neighbouring carbon atoms, and RE1 and RE2 together non-directionally form the structure -T-(CRE7RE8)n-V-, wherein T is specified in CRE9RE10 and O or NH, and V is specified in CRE9RE10 and O or NH, as well as respective structures comprising a double bond; at least one of T or V represents O or N; RE7 and RE8 represent H or F; RE9 and RE10 represent H; n takes on the values of 1 to 2; RE3 represents C1-6 alkyl group; m takes on the values of 0 or 1; RE4 represents a halogen atom; p takes on the values of 0 or 1; as well as to pharmaceutical diagnostic compositions of the above compound.

EFFECT: preparing the new pharmaceutical compounds.

41 cl, 17 dwg, 2 tbl, 17 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention relates to a novel derivative of N-acylanthranilic acid, represented by the following general formula 1, or to its pharmaceutically acceptable salt, in which R1, R2, R3, X1, X2, X3, X4 and A are determined in the invention formula.

EFFECT: invention relates to an inhibitor of collagen production, a medication for treating diseases, associated with the excessive production of collagen, containing N-acylanthranilic acid derivative Formula 1.

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to a new compound of formula [I] or to its pharmaceutically acceptable salt, wherein A represents optionally substituted alkyl, wherein the substitute represents identical or different 1-3 groups specified in aryl optionally substituted by 1-3 groups specified in alkyl, halogen, alkoxy and alkanoyl; cycloalkyl optionally substituted by 1-3 groups specified in alkyl and halogen; hydroxy; alkoxy; halogen; an amino group and oxo; an optionally substituted carbocyclic group specified in a mono- and bicyclic group, wherein an aromatic ring and cycloalkyl are condensed; optionally substituted aryl, an optionally substituted completely saturated 5- or 6-merous monocyclic heterocyclic group each of which contains 1 heteroatom specified in nitrogen and oxygen, wherein the substitute of optionally substituted aryl, the optionally substituted carbocyclic group and the optionally substituted heterocyclic group for A represents identical or different 1-3 groups specified in alkyl, optionally substituted hydroxy, alkoxy, cycloalkyl or halogen; cycloalkyl optionally substituted by alkyl or alkoxy; alkoxy optionally substituted by halogen; halogen; hydroxy; oxo; heterocycle; alkyl sulphonyl; and mono- or dialkylcarbamoyl, optionally substituted amino, wherein the substitute represents identical or different 1 or 2 alkyl or aryl, or optionally substituted carbamoyl, wherein the substitute represents identical or different 1 or 2 alkyls optionally substituted by aryl, X represents optionally substituted methylene or -O-, wherein the substitute of optionally substituted methylene for X represents alkoxy or hydroxy, Q represents N or C-R4, L1 represents a single bond, methylene, -CH=CH-, -O-, -CO-, -NR11-, -NR11CO-, -CONR11- or -CH2NR11-, L2 represents a single bond, -CR6R7- or a bivalent 5- or 6-merous completely saturated monocyclic heterocyclic group each of which contains 1 heteroatom specified in nitrogen and oxygen, R1 and R2 are identical or different, and each represents hydrogen, alkyl or halogen, R3 and R4 are identical or different, and each represents hydrogen, alkyl, alkoxy, cyano or halogen, R1 and R3 are optionally bond thereby forming 5- or 6-merous cycloalkane, or a 5- or 6-merous aliphatic heterocycle containing oxygen atom, R5 represents a carboxyl group, an alkoxycarbonyl group or a bioisosteric group of the carboxyl group, R6 and R7 are identical or different, and each represents hydrogen or alkyl, or R6 and R7 are bond thereby forming cycloalkane, R8 represents hydroxy, alkanoylamino or alkyl sulphonylamino, R9 and R10 represent hydrogen or halogen, and R11 represents hydrogen or alkyl. Besides, the invention refers to specific compounds of formula [I], a drug based on the compound of formula [I], using the compound of formula [I], a method of treating based on using the compound of formula [I], and an intermediate compound of formula [II].

EFFECT: there are prepared new compounds possessing the agonist activity on thyroid hormone β receptor.

18 cl, 36 tbl, 344 ex

FIELD: medicine.

SUBSTANCE: invention refers to a method of treating tuberculosis with multiple drug resistance characterised by prescribing a combination of six anti-tuberculosis preparations in the intensive phase of chemotherapy and five preparations - in the phase of the 20-month therapy continuation, wherein the intensive phase duration makes at least 8 months until obtaining four negative culture results every month in tuberculosis with multiple drug resistance and until obtaining two negative culture results in all other cases of tuberculosis with multiple drug resistance, the phase of the therapy continuation makes 12 months.

EFFECT: higher clinical effectiveness.

1 tbl, 9 ex

FIELD: medicine.

SUBSTANCE: invention concerns a simplified capsular form of clofazimine, containing clofazimine, bee wax, soya bean lecithin, butylhydroxy toluene, soya bean oil, gelatine, glycerol, sorbitol, methylparabene, propylparabene, titanium dioxide, brown chocolate and purified water with preserving high efficacy.

EFFECT: simplifying the form.

4 tbl, 3 ex

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to phthisiology, and can be used in treating pulmonary tuberculosis accompanied by tuberculosis intoxication. To this effect, administering anti-tuberculosis preparations is combined with the additional intravenous drop-by-drop administration of Reamberin, Heptral and antitoxic polyvalent antigangrenous serum (AGS) preceded by the administration of heparin 50 units/kg; Reamberin is administered in an amount of 400 ml on the first and second day for 2 hours; Heptral is introduced in an amount of 400 ml from the first to the fifth day; AGS is administered on the third day in an amount of 30 thousand International Units, on the fourth day in an amount of 60 thousand International Units, in case of a destructive process - in an amount of 60 thousand International Units on the fifth day; AGS is administered in normal saline NaCl 400 ml, and the first 1 ml of the solution is administered for 5 minutes, the rest amount - for 1.5-2 hours.

EFFECT: method enables increasing the clinical effectiveness of pulmonary tuberculosis as soon as possible by binding and neutralising microbial exo- and endotoxins by serum antibodies with no side effects and reduced financial expenses.

4 tbl, 3 ex

FIELD: medicine.

SUBSTANCE: means represents a dry extract of leaves and flowers of Gratiola officinalis, obtained by milling the leaves and flowers of Gratiola officinalis, extraction with 96% alcohol on a water bath to boiling and boiling, evaporation, dilution of the evaporated residue first with distilled water, then by the addition of chloroform, cooling to room temperature and centrifuging with the following separation of a water fraction and drying it under specified conditions.

EFFECT: means is non-toxic, has an expressed anti-tuberculosis action.

2 tbl, 2 ex

FIELD: medicine.

SUBSTANCE: agent is presented in the form of a tablet, contains isoniazid and a substance which reduces its toxicity; as the substance which reduces the isoniazid toxicity, it contains thiotriazolin. The isoniazid/thiotriazolin ratio makes 4:1.

EFFECT: combined antituberculous drug ensures reducing toxicity as compared to the known ones and increasing its pharmacological activity.

2 cl, 1 ex, 1 tbl

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to a chemical compound of formula wherein R=benzyl and to an antituberculous therapeutic agent representing a composition of imidazo[1,2-b][1,2,4,5]tetrazine derivative of formula I, wherein R=benzyl, isopropyl or phenyl and the known antituberculous preparation pyrazinamide with the ingredients in mole ratio 1:1.

EFFECT: there are prepared new antituberculous therapeutic agents.

2 cl, 2 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: invention relates to organic chemistry and specifically to nitroimidazooxazine derivatives of general formula I, where n equals 1, V and W independently denote H or CH3, and one of X and Y is H and the other is one of the formulae and , where formula IIa includes a single ring labelled at position 3 and position 4 and containing R1 as a substitute, and formula IIb includes a first ring labelled at position 3 and position 4 and containing as substitutes both R2 and a terminal ring, labelled at position 4 and containing R1 as a substitute, where the single ring of formula IIa and the first ring and the terminal ring of formula IIb include C, CH, or N at each ring position, where the single ring of formula IIa and the first ring and the terminal ring of formula IIb independently contain no more than two nitrogen atoms; Z in formulae IIa and IIb is CH2 or a direct bond, R1 is independently any one or two of H, F, C1, CF3, OCF3 or OCH2Ph, and R2 is H. The invention also relates to a pharmaceutical composition based on the compound of formula I, a method of preventing and treating a microbial infection based on use of the compound of formula , and specific nitroimidazooxazine derivatives.

EFFECT: obtaining novel compounds with useful biological activity.

7 cl, 21 dwg, 3 tbl

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention relates to field of genetic engineering, molecular biology and vaccinology. Claimed is polyepitopic anti-tuberculosis vaccine construction for formation of immune response, which provides induction of immune response of CD8+ T-lymphocytes, consisting of universal polyepitopic immunogen, containing CTL-epitopes, selected from immunodominant antigens of M. tuberculosis, fused from N-end with ubiquitin, and having amino acid sequence SEQ ID NO: 1.

EFFECT: vaccine construction provides achievement of effective therapeutic T-cell immune response not only due to antigenspecific cytotoxic CD8+ T-lymphocytes but also intensive response of CD4+ T-lymphocytes.

1 tbl, 11 dwg

FIELD: medicine.

SUBSTANCE: invention concerns Mycobacterium tuberculosis growth inhibitors representing (+) and (-)-enantiomers of derivatives of usnic acid containing a furilidene furanone fragment, namely (10R,4Z)-8,13-dihydroxy-7,10-dimethyl-4-(2-furanylmethylidene)-5,16-dioxatetracyclo[7.7.0.02.6.010.15]hexadeca-1,6,8,12,14-pentaen-3,11-dione 4a and (10S,4Z)-8,13-dihydroxy-7,10-dimethyl-4-(2-furanylmethylidene)-5,16-dioxatetracyclo[7.7.0.02.6.010.15]hexadeca-1,6,8,12,14-pentaen-3,11-dione 4b

EFFECT: inhibitors possess the high antimicrobial activity.

2 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: invention relates to novel derivatives of 1-(2-chloroquinolin-3-yl)-4-dimethylamino-2-(naphthalen-1-yl)-1-phenylbutan-2-ol of general formula I or their pharmaceutically acceptable salts with acids, where R1 denotes H, R2+R3 denotes -O-(CH2)n-O-, where n=1-2, which forms additional dioxane and 1,3-dioxolane rings. The invention also relates to a method of producing a compound of formula I and to use of the compound of formula I in treating infectious mycobacterial diseases.

EFFECT: obtaining novel compounds with useful biological activity.

4 cl, 2 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to compounds of formula A-I, where G1 stands for hydrogen atom or R'; G2 stands for halogen atom, CN, CF3, isopropyl or phenyl, where said isopropyl or phenyl is optionally substituted with up to three substituents, independently selected from WRW; G3 stands for isopropyl or (C3-C10)cycloaliphatic ring, where said G3 is optionally substituted with up to three substituents, independently selected from WRW; W stands for bond or (C1-C6)alkylidene chain, where up to two methylene groups of W residue are optionally and independently substituted for -CO2- or -O-; RW stands for R'; and R' is independently selected from hydrogen atom or (C1-C8)alkyl group. Invention also relates to method of obtaining compound of formula FF (stands for bromine atom, fluorine atom or tret-butyl; G3 stands for tret-butyl) by hydrogenation of respective nitrocompound in presence of palladium catalyst and to methods of obtaining C-9 and 433 compounds, which include stage of hydrogenation of respective nitrocompound in presence of palladium catalyst as intermediate stage.

EFFECT: formula A-I compounds, which are intermediate for synthesis of modulators of ATP-binding cassette ("ABC") transporters.

35 cl, 4 tbl, 80 ex

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