Prodrugs of active substances with heterocyclic linkers

FIELD: pharmaceutics.

SUBSTANCE: invention relates to prodrugs of opioid active substance, which provide controlled release of active substance by enzymatic decomposition with further intramolecular cyclization. Invention also relates to compositions, containing prodrugs, and methods for using them.

EFFECT: composition can optionally include trypsin inhibitor, which interacts with enzyme, which is mediator in release of active substance from prodrugs in order to attenuate enzymatic splitting of prodrug.

16 cl, 17 dwg, 15 tbl, 49 ex

 



 

Same patents:

FIELD: chemistry.

SUBSTANCE: invention relates to novel polyfunctional fullerene C60 amino acid derivatives of formula (1) , wherein R is H, mono- or dinitroxyC1-6alkyl, maleinimide; N-Z denotes a α, β, γ, ω-amino acid fragment of general formula where m=2-5 and M is a nitroxyC1-6alkyl group, a C1-6alkyl group or an alkali metal salt, having biological activity, as well as methods for production thereof and a method for covalent bonding of fullerene derivatives with SH-containing proteins. The invention also relates to the use of nitroxyalkyl-N-(fullerenyl)amino acids as nitrogen monoxide donors and to use of nitroxyalkyl-N-(fullerenyl)amino acids as quick-acting vasodilatators for antihypertensive therapy. The invention also relates to a method of inhibiting a metastasis process and a method of enhancing antileukemic activity of cyclophosphamide. Disclosed nitroxyalkyl-N-fullerenyl amino acid derivatives have an effect on coronary, contractile and pumping ability of the isolated heart of Vistar rats and are quick-acting vasodilatators which reduce arterial pressure and heart rate and cause relaxation of coronary vessel with less depressive effect on myocardial function compared to nitroglycerine.

EFFECT: disclosed compounds considerably intensify antileukemic activity of cyclophosphamide, increase chemosensitising activity when combined with cyclophosphamide.

9 cl, 8 ex, 3 tbl, 3 dwg

Iap inhibitors // 2425838

FIELD: chemistry.

SUBSTANCE: invention relates to novel compounds of formula

, which can inhibit binding of protein Smac with apoptosis protein inhibitor (IAP).

EFFECT: improved properties of the inhibitor.

4 cl, 198 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention relates to compounds, which possess agonistic or antagonistic activity of NGF and BDNF neutrophins and represent monomer or dimmer substituted dipeptides, which are analogues of exposed outside parts of loops 1 and 4 of said neutrophins, close to beta-bends of said loops or coinciding with them. Effects in vivo are demonstrated by claimed compounds within dose interval 0.01-10 mg/kg in intraperitoneal introduction.

EFFECT: claimed compounds possess neuroprotective and differentiating activity on cell models, increase concentration of phosphorylated form of tyrosine kinase A and proteins of heat shock Hsp32 and Hsp70 in concentrations10-5-10-9 M, they also possess neuroprotective, antiparkinsonian, anti-stroke, antiischemic, antidepressant, antiamnestic activity on animal models and demonstrate activity on experimental models of Alzheimer's disease.

20 cl, 33 dwg, 23 tbl, 18 ex

FIELD: medicine.

SUBSTANCE: invention refers to inhibitors of enzymes cleaving protein after proline, such as depeptidyl peptidase IV inhibitors, as well as to their pharmaceutical compositions, and methods of application of such inhibitors. Particularly, inhibitors under this invention are improved in comparison with those currently in use in the present art by selecting special classes of side chains in P1 and/or P2 positions of inhibitor which contains carboxylic acid grouping.

EFFECT: compounds of specified formulas I, II and III can have the improved therapeutic index, partially owing to reduced toxicity and improved specificity in relation to target protease.

15 cl, 2 dwg, 6 ex

FIELD: pharmacology.

SUBSTANCE: there is produced synthetic derivative of phthalyl-glycyl-agginyl-piperidide peptide expressing anticoagulant activity estimated by inhibiting amidolytic thrombin activity in system in vitro and double prolongation of rats' blood plasma coagulation as compared with the control values in tests activated partial thromboplastin and thrombin time tests and having formula 1, including pharmaceutically acceptable salts.

EFFECT: new synthetic peptide derivative expressing anticoagulant activity.

1 dwg, 2 tbl, 4 ex

FIELD: medicine.

SUBSTANCE: application describes ACE inhibitor complexes of Perindopril Erbumine with cyclodextrins, polyvinylpyrrolidone or hydroxypropyl cellulose, methods for making thereof, pharmaceutical compositions.

EFFECT: application for treatment of cardiovascular diseases.

19 cl, 23 dwg, 13 ex

FIELD: chemistry.

SUBSTANCE: desired dipeptides are synthesised by reaction of methyl ether N - (9-aminononanoyl)-3-amino-3-phenylpropionic acid and betulonic (3-oxo-lup-20 (29)-en-28) and dihydrobetulonic (3-oxo-lupan-28) acid chloranhydrides.

EFFECT: lupane triterpene dipeptides develop antiviral antiproliferative and immunopotentiating activity.

9 ex

FIELD: chemistry; pharmacology.

SUBSTANCE: present invention refers to bioactive compounds of formula (Ic) , pharmaceutical compositions and application at cancer treatment, where R2-R7, X2, R, Q, G, J, L and M represent values estimated in invention formula and description.

EFFECT: production of compounds which can be used for anticancer medical product.

55 cl, 19 ex

Perindopril // 2339645

FIELD: chemistry.

SUBSTANCE: formula (I) is obtained from protected precursor compound of the formula (II) , where R is carboxy protective group. Method involves protection removal from COOR carboxylic group linked to heterocyclic ring in the formula (II), thus obtaining respective free acid. Protection removal is performed in the presence of an alkali forming pharmaceutically acceptable salt with the indicated free acid and, if necessary, is followed by hydration of pharmaceutically acceptable perindopril salt.

EFFECT: improved method of perindopril obtainment.

15 cl, 1 dwg, 1 tbl, 7 ex

FIELD: organic chemistry of natural compounds.

SUBSTANCE: invention relates to novel compounds, namely, to N'-{N-[3-oxo-lupan-28-oyl]-9-aminononanoyl}-3-amino-3-phenylpropionic acid and its salts of the formula (I) given in the invention description. This compound shows antiviral activity, in particular, anti-HIV activity, and immunostimulating activity. Compounds of the formula (I) are nontoxic and can be obtained from betulin isolated from birch bark as available raw with the high yield.

EFFECT: valuable medicinal properties of compound.

4 tbl, 9 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention relates to therapeutic or preventive means in case of disease(s) of biliary tracts, which are caused or are aggravated by sphincter of Oddi contraction. As effective component, claimed means contains compound, presented by general formula

.

In formula (I) double line, which contains from dotted line and solid line, represents double bond or single bond, R1 represents C4-C7-cycloalkylalkyl, R2 represents linear or branched C1-C5-alkyl, and B represents - CH=CH-.

EFFECT: invention also relates to compound of formula (I) and to method of treatment or prevention in case of disease(s) of biliary tracts, which are caused or intensified by sphincter of Oddi contraction.

6 cl, 1 dwg, 1 ex

FIELD: biotechnologies.

SUBSTANCE: conjugate represents benzoate-hydrocodone that has the following structure: benzoate-hydrocodone (Bz-HC). Invention also pertains to the application of pharmaceutical compound for obtaining the drug for curing the patient with illness, disease or condition mediated by opioid binding to the opioid receptors of the patient.

EFFECT: improvement of medical treatment efficiency or prevention of drug abuse, drug withdrawal symptoms or pain relief.

10 cl, 11 ex, 4 tbl, 20 dwg

FIELD: medicine, pharmaceutics.

SUBSTANCE: present invention declares a compound of structural formula (I) or its pharmaceutically acceptable salt, solvate or hydrate wherein: X is phenol opiate wherein a hydrogen atom of a hydroxyl phenol group of substituted by a covalent bond with -C(O)-Y-(C(R1)(R2))n-N-C(R3)(R4);Y is -NR5-, R5 is (C1-6)alkyl; n is equal to 2 or 3, each of R1 and R2 is independently hydrogen, alkyl or substituted alkyl; R3 is hydrogen or methyl; R4 is a residue of L-amino acid or a residue of their N-acyl derivatives, as well as Hydromorphone 3-(N-methyl-N-(2-N'-acetylarginine amino)ethyl carbamate, or their pharmaceutically acceptable salt. What is also specified is a method for preparing the compound of formula (I) or its pharmaceutically acceptable salt.

EFFECT: what is declared is a pharmaceutical composition controlling phenol opiate release and a method of pain management in a patient in need thereof involving the introduction of an effective amount of the composition.

19 cl, 20 ex, 12 tbl

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to chemical-pharmaceutical industry, particularly a method for making the oxymorphone derivative naltrexone being an opiate antagonist by naltrexone processing by diazomethane in the presence of palladium acetate.

EFFECT: method eliminates using hardly accessible and expensive parent compounds, and it is characterised by ease of implementation.

3 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to compounds of general formula in which R1 represents C1-C10-alkyl with a straight or branched chain, optionally substituted by an aromatic ring, or -(CH2)nX(CH2)n- in which each n is equal to an integer from 0 to 2, X represents O, S, NH and where R2 represents H or C1-C6-alkyl with the straight or branched chain. Also, the invention refers to application of buprenophine derivative esters on a hydroxyl group of phenol for treating opiate dependences and/or moderate to strong pain, and to application as an agent releasing a therapeutic amount of buprenophine into a human body.

EFFECT: preparation of new buprenophine derivatives a hydroxyl group of phenol for treating opiate dependences and/or moderate to strong pain.

20 cl, 7 dwg, 1 tbl, 11 ex

FIELD: chemistry.

SUBSTANCE: disclosed method of determining opium alkaloids involves extraction sample preparation carried out using a water-acetonitrile mixture with ratio of water to acetonitrile ranging from 38:12 to 42:8, as well as analysis of the obtained extract through high-performance liquid chromatography, carried out at wavelength 210 and 220 nm. The rate of extraction of alkaloids can be increased by adding mineral acid, for example orthophosphoric acid, to the extracting water-acetonitrile mixture.

EFFECT: shorter analysis time and fewer operations while preserving the degree of extraction of alkaloids.

3 cl, 9 dwg, 1 ex

The invention relates to a method for producing derivatives of morphinan, which are intermediate compounds for obtaining derivatives of 14-hydroxymorphinone, which, in turn, are used to obtain opiate antagonists derived Oxymorphone

The invention relates to organic chemistry, specifically to a method for producing esters of N-substituted 14-hydroxymorphinone that are important narcotic analgesic and/or antagonistic means - opiate receptor blockers prolonged action

The invention relates to organic chemistry, particularly to esters of N-substituted 14-hydroxymorphinone that are important narcotic analgesic and/or antagonistic means - opiate receptor blockers prolonged action and to methods for their preparation

FIELD: chemistry.

SUBSTANCE: invention relates to novel compounds of formula

,

possessing properties of binding with delta opioid receptors. In formula I R1 is selected from the group, consisting of phenyl, pyridinyl and thiazolyl, with R1 being optionally substituted with one or two substituents, independently selected from the group, consisting of C1-4alkoxy, fluorine atom, chlorine atom, bromine atom and cyanogroup; in addition, R1 is optionally substituted with di(C1-4alkyl)aminocarbonyl; Y represents O, S, H3, vinyl, ethinyl or S(O); R2 represents a substituent, selected from the group, consisting of hydrogen, C1-4alkyl, C1-4alkoxy, C1-4alkylthio, fluorine atom, chlorine atom, bromine atom and hydroxy; Ra represents hydrogen or methyl; R3 is selected from the group, consisting of pyrrolidin-2-ylmethyl; pyrrolidin-3-ylmethyl; piperidin-2-ylmethyl, piperidin-3-ylmethyl, piperidin-4-ylmethyl, piperidin-2-ylethyl, piperidin-3-ylethyl, piperidin-4-ylethyl, pyridine-4-yl-(C1-2)alkyl, azetidin-3-ylmethyl; morpholin-2-ylmethyl, morpholin-3-ylmethyl, imidazolylmethyl, thiazolylmethyl, (amino)-C3-6cycloalkyl, 3-hydroxy-2-aminopropyl, 8-azabicyclo[3.2.1]octanyl, 1-azabicyclo[2.2.2]octanyl, guanidinylethyl, 4-(imidazol-1-yl)phenylmethyl, 2-(methylamino)ethyl, 2-diethylaminoethyl, 4-diethylaminobut-2-yl, piperidin-3-yl, piperidin-4-yl and pyrrolidin-3-yl; with piperidin-3-yl being optionally substituted on a carbon atom with phenyl; with pyrrolidin-2-yl in pyrrolidin-2-yl-methyl, pyrrolidin-3-yl, piperidin-3-yl and piperidin-4-yl being optionally substituted on a nitrogen atom with methyl, phenylmethyl, phenethyl or methylcarbonyl.

EFFECT: compounds can be used in the treatment of pain, induced by diseases or conditions, such as osteoarthritis, rheumatoid arthritis, migraine, burn, fibromyalgia, cystitis, rhinitis, neuropathic pain, idiopathic neuralgia, toothache, etc.

24 cl, 3 tbl, 19 ex

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