WO1997021416A2 - Glicoconjugados de substancias opiaceas - Google Patents
Glicoconjugados de substancias opiaceas Download PDFInfo
- Publication number
- WO1997021416A2 WO1997021416A2 PCT/ES1996/000214 ES9600214W WO9721416A2 WO 1997021416 A2 WO1997021416 A2 WO 1997021416A2 ES 9600214 W ES9600214 W ES 9600214W WO 9721416 A2 WO9721416 A2 WO 9721416A2
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- Prior art keywords
- formula
- opioid
- compound
- residue
- compounds
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- 239000000126 substance Substances 0.000 title description 23
- 150000001875 compounds Chemical class 0.000 claims abstract description 197
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 48
- 239000002253 acid Substances 0.000 claims abstract description 37
- 150000001720 carbohydrates Chemical class 0.000 claims abstract description 26
- 235000014633 carbohydrates Nutrition 0.000 claims abstract description 26
- 230000006870 function Effects 0.000 claims abstract description 12
- 150000003839 salts Chemical class 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 4
- -1 cyclic amine Chemical class 0.000 claims description 120
- BQJCRHHNABKAKU-KBQPJGBKSA-N morphine Chemical group O([C@H]1[C@H](C=C[C@H]23)O)C4=C5[C@@]12CCN(C)[C@@H]3CC5=CC=C4O BQJCRHHNABKAKU-KBQPJGBKSA-N 0.000 claims description 107
- 229960005181 morphine Drugs 0.000 claims description 57
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 54
- 238000000034 method Methods 0.000 claims description 50
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- 239000001257 hydrogen Substances 0.000 claims description 39
- 229910052739 hydrogen Inorganic materials 0.000 claims description 39
- 230000008569 process Effects 0.000 claims description 31
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 28
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 27
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 27
- 229940005483 opioid analgesics Drugs 0.000 claims description 27
- 229920001542 oligosaccharide Polymers 0.000 claims description 21
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- USSIQXCVUWKGNF-UHFFFAOYSA-N 6-(dimethylamino)-4,4-diphenylheptan-3-one Chemical compound C=1C=CC=CC=1C(CC(C)N(C)C)(C(=O)CC)C1=CC=CC=C1 USSIQXCVUWKGNF-UHFFFAOYSA-N 0.000 claims description 14
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- 125000003603 D-ribosyl group Chemical group C1([C@H](O)[C@H](O)[C@H](O1)CO)* 0.000 claims description 2
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- 150000003857 carboxamides Chemical class 0.000 claims description 2
- KCFSCGRHDJMUSZ-ZDCRXTMVSA-N cyclohexyl (2S,3R,4S,5R)-2,3,4,5-tetrahydroxy-6-oxohexanoate Chemical compound C1(CCCCC1)OC([C@H]([C@@H]([C@@H]([C@H](C=O)O)O)O)O)=O KCFSCGRHDJMUSZ-ZDCRXTMVSA-N 0.000 claims description 2
- 125000004672 ethylcarbonyl group Chemical group [H]C([H])([H])C([H])([H])C(*)=O 0.000 claims description 2
- 125000002446 fucosyl group Chemical group C1([C@@H](O)[C@H](O)[C@H](O)[C@@H](O1)C)* 0.000 claims description 2
- 125000002519 galactosyl group Chemical group C1([C@H](O)[C@@H](O)[C@@H](O)[C@H](O1)CO)* 0.000 claims description 2
- 125000002566 glucosaminyl group Chemical group 0.000 claims description 2
- 125000002951 idosyl group Chemical group C1([C@@H](O)[C@H](O)[C@@H](O)[C@H](O1)CO)* 0.000 claims description 2
- BQINXKOTJQCISL-GRCPKETISA-N keto-neuraminic acid Chemical compound OC(=O)C(=O)C[C@H](O)[C@@H](N)[C@@H](O)[C@H](O)[C@H](O)CO BQINXKOTJQCISL-GRCPKETISA-N 0.000 claims description 2
- 125000000311 mannosyl group Chemical group C1([C@@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- CERZMXAJYMMUDR-UHFFFAOYSA-N neuraminic acid Natural products NC1C(O)CC(O)(C(O)=O)OC1C(O)C(O)CO CERZMXAJYMMUDR-UHFFFAOYSA-N 0.000 claims description 2
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- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H17/00—Compounds containing heterocyclic radicals directly attached to hetero atoms of saccharide radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H7/00—Compounds containing non-saccharide radicals linked to saccharide radicals by a carbon-to-carbon bond
- C07H7/06—Heterocyclic radicals
Definitions
- a typical dose of 10 mg of morphine intravenously or intramuscularly induces in the patient, a Less painful sensation, sedative effects, contraction of the pupils and depression of cough reflexes.
- Other semi-synthetic drugs, similar to morphine, which are normally used for the treatment of severe pain are hydromorphine, diamorphine (heroin) and oxymorphone.
- codeine, dihydrocodeine and nalburphine are frequently used for their analgesic properties. Codeine is also an important cough suppressant and therefore can be found among the main ingredients of a wide variety of cough preparations.
- Other antitussive drugs are foleodine, ethylmorphine, hydrocodeine and oxycodein.
- the opioid antagonist, naloxone is used for the treatment of respiratory depression caused by opioid overdose.
- morphine 6-glucoronide In addition to being much more active than morphine when injected intrathecally, morphine 6-glucoronide also shows central analgesic action through peripheral administration. Apparently, the compound passes the blood brain barrier (BBB) by diffusion transport more easily than anticipated for such a polar structure.
- BBB blood brain barrier
- Recent conformational studies (PA Carrupt et al., Morphine 6-glucoronide and morphine 3-glucoronide behave as molecular camoleons of unexpected lipofility., J. Med. Chem., 1991,34,1272-1275; P. Gaillart et al., Relationship-lipophilic conformation of morphine glucoronides calculated from their molecular lipophilicity potential, Bioorg. Med. Chem. Lett., 1994,4,5,737-742) indicate that in between Aqueous the structure of glucuronides is predominantly extended to allow the interaction of polar groups with water molecules.
- Patent N2 W093 / 15737 Formulation for nasal administration containing polar analgesic metabolites opioids.
- Patent Na EP0324212,19.07.1989 Glutaonic acid derivatives of opioid antagonists
- opioid antagonists such as nalmefene, naloxone and naltrexone
- Patent No. J 54105237, 1978 Analgesic composition containing nalorphine 6-glucuronide
- a common feature of the analogs claimed in this patent is the presence of a glucuronate ester and / or a substituted glucuronate ester on a morphine molecule, which may be substituted or
- the basic skeleton of these analogs is always the corresponding to the structure of the natural morphine 6-glucuronide where the nature and the relative position of the bond linking the carbohydrate part and the opioid part is identical to that of the natural compound.
- the glycosidic part of the peptide-sugar conjugate could be recognized by the glucose transport system which, in turn, could lead the glucoconjugate to the brain.
- the glyco ⁇ synthetic part could function as a transport vector allowing the glycopeptide to be transported through the BBB to the endogenous opioid receptors of the brain.
- opioid potency is a function of the nature of the carbohydrate.
- the potency of a galactose analog is approximately 1700 times greater than that corresponding to one of glucose by intracerebroventricular administration (icv).
- sugar derivatives of a series of opiates, including morphine
- morphine can act as pro ⁇ drugs.
- the passage of the BBB can be facilitated, the analgesic potency increased and the therapeutic effect improved.
- This in turn, can contribute to lowering the therapeutic doses of commonly used opioid analgesics and, eventually, reducing their unwanted side effects.
- a new series of synthetic opioid glycoconjugates which in part mimic the natural glucurinoids of morphine, is proposed as a new class of analgesic substances.
- opioid glycoconjugates show a good number of advantages over their unconjugated congeners.
- the presence of a carbohydrate residue makes these hybrid molecules less prone to enzymatic degradation thus improving their therapeutic life.
- the passage of the blood-brain barrier is also facilitated, since the presence of saccharide fragments in opioid molecules can, for example, confuse active glucose transport systems and thus allow the penetration of opioid active ingredients through permeability barriers.
- These proposed glycosylated molecular entities show an increase in potency that can also be explained by carbohydrate-carbohydrate affinity interactions between opioid receptors, whose composition involves glycoproteins and the saccharide structures of opioid glycoconjugates.
- the present invention relates to glycosydic derivatives of biologically active opioids.
- the object of this invention is to provide a series of carbohydrate derivatives of a family of biologically active opioid agents; These derivatives have a higher analgesic potency compared to non-carbohydrate-modified opioids, and have in their structure at least one carbohydrate residue per opioid molecule that is directly linked by O-glycosidic bond or by an ether type bond to a hydroxyl group of the opioid or through a C-glycosidic bond formed between two suitable functions located in each of the two constituent parts of the glycoconjugate.
- These glycosidic derivatives may also include in their molecule a linear or branched aliphatic or aromatic residue, or a sulfate or phosphate group (s).
- the compounds described above are hereinafter referred to as compounds of this invention and are also called opioid glycoconjugates.
- carbohydrate unmodified opioid It is defined as the structure corresponding to the opioid without any carbohydrate residue attached to its molecule. Hereinafter these are referred to as unmodified or opioid opioid.
- opioid opioid As described below, the compounds of this invention have better analgesic properties and it has been shown that this improvement is induced by the incorporation of the sugar residue or residues.
- opioid as used herein, includes all non-peptide substances that specifically bind opioid receptors, including, for example, morphinands, benzomorphanes, methadones and phenylpipetrins. This class of compounds can also be classified as narcotic or opioid analgesics related to morphine.
- biologically active opioids refers to particular compounds with pharmacological and therapeutic activities in relation to analgesia, cough, dyspnea, constipation, anesthesia and diarrhea or that stimulate or inhibit these activities.
- biologically active opiates include opiate substances isolated from nature or synthetic, and their derivatives or analogs are also included in this group.
- sugars or carbohydrates to which reference is made may be, for example, any known mono- or oligosaccharide, especially a mono-, di- or tri-fatty acid or a derivative thereof, for example, an amino and / or a carboxylic acid and / or reduced and / or esterified and / or sulfated and / or phosphated derivative thereof.
- the carbohydrate residue may be coupled, for example, to a hydroxyl group and / or a thiol group and / or a carbon atom of the opioid molecule.
- the sugar can be coupled by one of its opioid functional groups directly or indirectly, by a binding or spatial unit, for example, NHCO or NHCS. This coupling can be carried out by a conventional method, especially as described below.
- the carbohydrate residue is linked to an opioid hydroxyl group via an O-glycosidic bond.
- This group of compounds of this invention can be prepared from different methods of glycosidic bond formation such as, for example, the Koenigs-Knorr reaction, the Helferich, Hannesian or Schmidt procedures.
- Another series of the compounds of this invention can be prepared by forming an ether bond between opioid and carbohydrate molecules. Other series can be obtained by C-glycosidic bond between these components.
- This invention contemplates both oral and parenteral farraacological preparations containing a compound of this invention, especially those based on morphine.
- the present invention contemplates, in particular, the following glycosides derived from biologically active opioids of formula: a)
- R- ⁇ is hydrogen, a hydroxyl group, an alcohol and / or a saturated, unsaturated or aromatic, linear, branched or cyclic acid residue with a number of carbon atoms between 1 and 18, a residue (s) ) sulfate (s) or phosphate (s); and R is a residue of a biologically active opioid of the formula R-OH, where the OH group belongs to an alcohol or phenol function.
- a •• - / ° - is a residue of a uronic acid
- R 2 is hydroxy, amino, a saturated, unsaturated or aromatic, linear, branched or cyclic amine, or an alcohol residue with a number of carbon atoms ranging from 1 to 18
- R is a residue of a biologically active opioid of the formula R-OH, where the OH group belongs to an alcohol or phenol function, c)
- a 3 -0- is a glycosidic residue that is linked via ether bond to a hydroxyl group of a biologically active opioid; and R is the residue of a biologically active opioid of formula R-OH, where the OH group belongs to an alcohol or phenol function, d)
- M ./4.::o-7 and ⁇ is a deoxy-glycidyl residue that is attached via a single bond CC to a carbon atom of a biologically active opioid and R is a residue of a biologically active opioid.
- R means the residue of a biologically active opioid molecule of formula R-OH
- X is a linking group, for example, NHCO or NHCS, which binds the opioid with the glycosidic residue.
- the acid salts and compounds of these opioid conjugated glyco ⁇ are also included among the compounds of this invention.
- glycosidic residues may be mono-, di- or oligosaccharides.
- These carbohydrates can contain heptoses, hexoses and / or pentoses, which, in turn, can be presented as pyranose or furanose.
- this invention also covers the derivatives of opioid carbohydrates with more than one free hydroxyl group in the opioid molecule and, therefore, these structures may contain, for example, 2 or 3 carbohydrate residues per unit. of opioid.
- this invention also includes all biologically active opioid derivatives having more than one carbohydrate residue linked in a manner as defined above. These opioid glycoconjugates preferably contain 1 to 3 monosaccharide units. which may also be bound in the active molecule as a disaccharide or trisaccharide.
- the sinuous line ⁇ v. Means that the carbohydrate units may be in the form of an alpha or beta anomer.
- radical ⁇ ⁇ is preferably: a) A residue of formula VI.a
- one of the radicals R a and R b is hydrogen and the other is R 1 or NH 2 or NH0C0CH 3
- one of the radicals R c and R d is hydrogen and the other is R ⁇ or O-glycosyl
- this glycosyl radical is derived from a reducing mono-, di- or oligosaccharide
- one of the radicals, R e and R f is hydrogen and the other is R ⁇ or 0-glycosyl
- this rad - Lime glycosyl is derived from a reducing mono-, di- or oligosaccharide
- one of the radicals R and R h is hydrogen and the other is CH 2 -R !
- this glycosyl radical is derived from a reducing mono-, di- or oligosaccharide
- the radical R L is hydrogen or CH 2 OH
- glycosidic residues of formula VI.a glycosyl, galactosyl, mannosyl, fucosyl, xylosyl, rhamnosyl, glucosaminyl, N-acetyl-glucosaminyl, octylglucopyranosyl, cyclohexylglucopyranosyl, benzylglucopynosyl , glucosyl sulfate, glucosyl phosphate, glucosaminyl sulfate, N-acetyl-glucosaminyl sulfate, lactosyl, geniothiosyl, chitobiosyl, N-acetyl-lactosaminyl, cellobiosyl, matosyl, melibiosyl and L-sor bosyl.
- radical R ' a and R' b is hydrogen and the other is R ⁇ or O-glycosyl
- this glycosyl radical is derived from a reducing mono-, di- or oligosaccharide
- one of the radicals R ' c and R' d is hydrogen and the other is R ⁇ or O-glycosyl
- this glycosyl radical is derived from a reducing mono-, di- or oligosaccharide
- one of the radicals R » E and R ' f is hydrogen and the other is CH 2 or CHOH-C ⁇ OR j or O-glycosyl
- this glycosyl radical is derived from a reducing mono-, di- or oligosaccharide
- the radical R' is hydrogen or CH 2 OH and the radi- lime R 1 as described above, for example, where the radicals R ' a to R * are selected such that the residues of formula VI.b correspond to a radical that is
- glycosidic residues of formula VI.b D-ribosyl, Darabinosyl, D-xylosyl, D-lixosyl, 2-deoxy-D-ribosyl, altosyl, idosyl, alosyl, D-fructosyl, D -sicosyl, D-sorbosyl, D-tagatosyl, D-xylulosyl, D-ribulosyl, D-gluco-furanosyl, D-galactofuranosyl, octylribofuran-syl, cyclohexylxofuranosyl, benzylarabinofuranosyl and D-fructosyl phosphate.
- radicals R 1 ' a and R *' b is hydrogen and the other is hydrogen or a hydroxyl, amino or acetylamino group
- one of the radicals R 1 ' c and R *' d is hydrogen and the other is hydrogen or O-glycosyl
- this glycosyl radical is derived from a reducing mono-, di- or oligosaccharide
- one of the radicals R '* e and R'' f is hydrogen and the other is hydrogen or O- glycosyl, in turn, this glycosyl radical derived from a mono-, di- or oligosacá ⁇ rido reducer and the radical R 2 as defined above.
- radicals R * ' a to R'' f are selected such that the residues of form VII correspond to a radical that can be prepared by synthesis of a glycosidic bond from a mono-, di derivative - or oligosaccharide accessible in a natural or synthetic way.
- Residues of formula VII can be obtained, for example, by glycosidic binding of carbohydrate derivatives of the uronic acid series such as glucuronic acid, galacturonic acid, glucuronamide, glucosaminuronic acid, octylgalacturonamide, cyclohexylgalacturonate, decylglucuronate and benzylglucuronamide.
- carbohydrate derivatives of the uronic acid series such as glucuronic acid, galacturonic acid, glucuronamide, glucosaminuronic acid, octylgalacturonamide, cyclohexylgalacturonate, decylglucuronate and benzylglucuronamide.
- other complex carbohydrates with acidic functions such as murmic acid, neuraminic acid, murine acetyl, neuraminic acetyl and sialic acid are also included as examples of complex carbohydrates with acidic functions other than those defined by
- radical indicated as A 3 has the same definitions already given for A ⁇ and A 2 by formulas VI.a, VI.b and VII.
- the preferred definitions are those where the radical A 4 is defined by the formula VI.a, VI.b and VII, especially when a monosaccharide derivative is considered.
- Preferred compounds of formula V are those that have an A 5 residue as described in formulas VI.a, VI.b and VII, in particular, X refer to radicals such as NHCO and NHCS.
- glycosidic residues must be covalently linked to an appropriate R radical of a biologically active opioid.
- opioids include all natural and synthetic opiates, derivatives and the like, which have activity against pain, cough, dyspnea, diarrhea and anesthesia. Its action can at the same time stimulating and inhibiting. Examples of these opioids can be mentioned: morphine, codeine, oxymorphone, noloxone, nalbuphine, buprenorphine, folcodine, methidine, loperamide, sufentanil, methadone, propoxyphene, metazocine, phenazocine and pentazocine.
- Preferred glycoconjugates are those of formula I and II.
- glycosidic radicals are described as pyranous or furanose, the invention includes these structures as long as they exist for the particular carbohydrate in question.
- the present invention includes the processes for preparing the compounds described by the above formulas. These can be produced from methods that are well known for this type of substance.
- a general example of such preparations for the compounds of this invention may be the following: a) At least one protective group of the opioid conjugate molecule is hydrolyzed or, b) A suitably modified and / or protected glycosidic residue and a conveniently derivatized opioid unit are joined by a bond that can be glycosidic, ether or CC, and step a) of the process is optionally executed.
- At least one optionally protected waste is introduced into a glycoconjugate opioid, which may or may not be protected, and stage a) of the process is optionally executed, or d) A functional group of a glycoconjugate opioid, protected or not, it is converted into another functional or hydrolyzed group, and a new residue is introduced, thus obtaining an unprotected or protected opioid glycoconjugate, and in the latter case, according to step a).
- steps a) and b) can be carried out in accordance with the syntheses of this invention described below.
- the compounds of formula I can be prepared by reacting a protected opioid (acyl acceptor), which has a free hydroxyl group, with an activated mono-, di- or oligosaccharide reducing derivative (acyl donor) in the presence of a promoter (conjugation reaction) and subsequently eliminating the protective group (s).
- acyl acceptor an activated mono-, di- or oligosaccharide reducing derivative
- conjugation reaction a promoter
- s protective group
- the conjugation reaction can take place by a conventional route by forming a glycosidic bond.
- the promoter used can be, for example, an Ag + or Hg + compound or a Lewis acid such as BF 3 OET 2 .
- An organic tertiary amine can also be added in the reaction medium.
- the reaction may preferably be carried out in solvents such as acetonitrile at temperatures in the sub-range to room temperature.
- the compounds of formula II can be prepared by reaction between a protected opioid containing a free hydroxyl group and a derivative of uronic acid.
- the conjugation reaction and the additional steps for the modification of the carbohydrate fragment can be carried out as in the case of the compounds of formula I.
- the modification of the glycosidic part may involve other processes of reaction such as the formation of ester or amide bonds, which can be carried out by well established conventional procedures such as those using acid halides, carbodiimides, phosphonium or uronium salts, active esters and symmetric anhydrides.
- the compounds of formula III can be produced by the reaction of a protected opioid, which has a free hydroxyl group, with another free hydroxyl group of a mono-, di- or oligosaccharide, reducing or not, through the formation of an ether bond and then eliminating the protective group (s).
- This procedure can be a conventional ether bond formation reaction which can be carried out from a known synthetic route.
- the opioid is reacted with trifilic anhydride in the presence of a tertiary base at low temperature and, subsequently, the glycosidic derivative is added slowly.
- the protective groups are removed.
- the compounds of formula IV can be produced by reacting a nucleophilic derivative of an opioid with an electrophilic derivative of a carbohydrate to give rise to a CC bond between the opioid and the anomeric position of the saccharide fragment and subsequent elimination of the group (s) protector (s).
- electrophilic species that can be used are: halides, imidates, lactones, glycols, thioglycosides and O-glycosides such as p-nitrobenzoates.
- nucleophilic derivatives silyl enol ethers, alkenes, allylsilanes, aliliestans and organometallic compounds such as Grignard reagents, organolithiums, cuprates and aluminates can be used. These processes require some reaction steps that can be carried out by known synthetic routes.
- the compounds of formula V can be produced, for example, by binding the corresponding glycosyl isocyanates or protected glycosylthioisocyanates with a protected R-OH opioid and, subsequently, eliminating the protective groups.
- This reaction can be carried out by conventional means for the synthesis of urethane or thiourethane derivatives.
- the preparation of the starting materials of these reactions is not described here, however, the processes of their preparation are known or can be performed. by conventional chemical means, for example, using known methods described in the literature for analogous compounds or described herein for the syntheses of this invention.
- a class of preferred compounds of this invention comprises glycosidic derivatives of opiates structurally related to morphine.
- opiates structurally related to morphine includes opiates of morphine structure and their analogues or derivatives.
- the glycosidic derivatives of the structures of formula VIII are especially preferred compounds of this invention.
- M x is a hydroxyl, methoxy, ethoxy, acetoxy or -OCH 2 CH 2 NO group
- M 2 is hydrogen or a hydroxyl, oxy, acetoxy, methoxy and methane group
- M 3 is a methyl, methylene cyclopropyl, methylene cyclobutyl and allyl group
- M 4 hydrogen or hydroxyl
- the bond between the carbon atoms of positions 6-7 and 7-8 can be single or double
- the ether function between positions 4 and 5 may or may not be present in the molecule.
- Compounds of formula VIII may exist in the form of levo or dextrorotatory isomers as well as in the form of salts and complexes.
- M 1 and M 2 are hydroxyls, M 3 methyl, M 4 hydrogen and there is a double bond between positions 7-8 and an ether function between 4-5, the morphine structure is defined.
- M 1 is a hydroxyl
- M 2 is oxy
- M 3 allyl is oxy
- M 4 hydroxyl and there is a single bond between positions 7-8 and an ether function between 4-5, then naloxone is defined.
- definitions for codeine, heroin, hydromorphone, hydrocodone, oxymorphone, oxycodone, levorphanol, dextromethorphan, nalorphine, naltrexone, levalorphane, tebacone, ethyl morphine, dihydrocodeine, nalmefene, nalbuphine, buforphanol and follophanol can be deduced .
- Other analogs such as metopon and buprenorphine, which cannot be deduced by general formula VIII, are also preferred morphine compounds of this invention.
- glycosidic derivatives containing the morphine structure are those that have a carbohydrate residue at positions C-3 and C-6 of the morphine skeleton, for example, compounds of formula:
- Especially preferred compounds for morphine, codeine and noloxone are those of formula VIII a, b and VIII c, d.
- Another class of preferred compounds of this invention comprises the glycosidic derivatives of the opioids of the meperidine series (pethidine).
- opioids of the meperidine series refers to phenylpiperidine-type opiates and their derivatives and analogs.
- Derivatives and analogs of the meperidine series opiates include the type of piperidine structure where the radicals have been modified to introduce suitable functions such as hydroxyl groups that can allow subsequent coupling reactions with hydrate units carbon
- Especially preferred compounds are the opioid glycosidic derivatives of the meperidine series of the following formula IX.
- E j is methyl, phenylethyl, p-phenylethylamine
- N N '
- E 3 is hydroxy, ethylcarbonyl, carboxamide, ethyl oxycarbonyl, ethylcarboxyl and -N (C 6 H 5 ) -CO-CH 2 -CH 3 .
- E ⁇ is methyl, E 2 phenyl, and E 3 ethoxycarbonyl, the defined structure is that of meperidine.
- E ⁇ is - (CH 2 ) -C (C 6 H 5 ) -CN
- E 2 phenyl and E 3 ethoxycar ⁇ bonyl diphenoxylate is defined.
- definitions for loperamide, fentanyl, sufentanil, alfentanil, ketobemidon, piritramide, anileridine, piminodine can be deduced.
- Other analogs such as alphaprodin, fenpipramide, etoheptazine, tilidine and nefopam, which cannot be deduced by general formula IX, are also opioid compounds. Preferred from the meperidine series.
- glycosylated opiates of the meperidine series are those that are glycosylated especially in the hydroxyl group already present in its structure or that has been introduced for the purpose of being an anchoring site of the carbohydrate in the radicals E 2 and E 3 of the formula IX, for example, compounds of these characteristics are those of the following formulas.
- Formula IXe Mepe refers to the meperidine residue or a derivative or analog of meperidine that is linked to the sugar residue through an existing hydroxyl group, as in the case of loperamide and ketobemidon, or introduced for the purpose of serving as a place of anchoring the carbohydrate in one of the radicals E 2 and / or E 3 of formula IX.
- especially preferred compounds are those of formula IXa and IXb.
- Another series of compounds of this invention comprise carbohydrate derivatives of opiates of the methadone type.
- the term opiate of the methadone type refers to opioid substances with structures closely related to methadone, as well as their derivatives and analogues.
- Methadone derivatives and analogs include structures where radicals have been modified with functions such as hydroxyl groups to allow carbohydrate conjugation.
- glycosidic derivatives of opiates of the methadone type which have the following formula X.
- D ⁇ is phenyl or benzyl
- D 2 is -CH 2 -CH (CH 3 ) -, -CH (CH 3 ) -CH 2 - and - (CH 2 ) 2 -
- D 3 is ethylcarbonyl, ethylcarboxy and -CH (OCOCH 3 ) -CH 2 -CH 3 .
- Preferred definitions and combinations for opiates of formula X are as follows. If O 1 is phenyl, D 2 -CH 2 -CH (CH 3 ) - and D 3 ethylcarbon, methadone structure is defined.
- D ⁇ is benzyl, D 2 -CH (CH 3 ) -CH 2 - and D 3 ethylcarboxy, propoxyphene is defined.
- Carbohydrate conjugates with methadone-type opiates are especially preferred those that are glycosylated in an introduced hydroxyl group in order to serve as a carbohydrate anchor point in radicals D ⁇ and D 3 of the Formula X, for example, compounds of these characteristics are those of the following formulas.
- Meta refers to the methadone residue or a methadone derivative or analogue that is coupled to a carbohydrate residue via an introduced hydroxyl group in order to serve as a carbohydrate anchor point in one of the radicals D- j ⁇ and / or D 3 of the formula X.
- a final series of preferred compounds of this invention comprises the glycosidic derivatives of opioids of the benzomorphan group.
- opioids of the benzomorphan group refers to opioid substances with structures that correspond to that of benzomorphan, as well as their derivatives and analogues.
- glycosidic derivatives of opiates of the benzomorphan group that respond to the following formula XI.
- the conjugates between carbohydrates and opiates of the benzomorphan group, including derivatives and analogs, which are especially preferred are those that are glycosylated in the phenol function of the formula XI, for example, compounds that respond to the following formulas:
- HOBt N-hydroxybenzotriazole.
- DMF dimethylformamide.
- TBTU tetrafluoroborate 2- (lH-benzotriazol-l-yl) -1,1,3, 3-tetramethyluronium.
- MeOH methane1.
- DIC dicyclohexylcarbodiimide.
- Triflate trifluoromethane sulfonate.
- ESI-MS ionization mass spectrometry by electric dispersion (electrospray).
- BOP hexafluorophosphate debezotriazol-1-yl-oxy-tris- (di-methylamino) -phosphonium.
- TEMPO free radical 2,2,6,6-tetramethyl-l-piperidinoloxide.
- M3G morphine 3-glucoronide
- M6G 6-morphine glocoronide
- the starting products can be obtained as indicated below.
- the solid fraction is purified on a silica gel chromatographic column using as a solvent a mixture of ethyl acetate / water / methanol (2/3/1). After lyophilizing an aqueous solution of acetic acid, which contains the pure fractions, the expected compound is isolated as a white powder.
- 6-morphinyl n-octyl- ( ⁇ -D-glucopyranosyl) - uronamide acetate To a solution of 1.72 g of 6- (3-O-acetyl) -morphinyl n-octyl- ( ⁇ -D-tri-O-acetyl-glucopyranosyl) -uronamide in 25 ml of absolute MeOH, 10 ml of 1% sodium methoxide in methanol. After overnight at room temperature, the reaction is neutralized with acetic acid and the solvent is removed.
- reaction crude is purified by silica gel chromatographic column, eluting with a mixture of ethyl acetate / water / methanol (9/4/5). Lyophilizing the pure fractions from an aqueous acetic acid solution gives the desired compound as a white solid.
- the starting products can be obtained as indicated below. a) 6- (3-Q-Acetyl) -morfinyln-octyl - ( ⁇ -D-tri-O-acetyl-ql-ucopyranosyl) -uronamide.
- a solution of 2.20 g of n-octyl - (tetra-O-acetyl- ⁇ -D-gluco-pyranosyl) -uronamide and 1.50 g of 3-O-acetyl-morphine is prepared in 50 ml of dry dichloromethane and 3 ⁇ molecular sieve. To this solution is added slowly 3.3 ml of boron trifluoride eterato. Once the reaction is complete, the mixture is successively filtered, decanted on ice and extracted with chloroform.
- the compound of this example can also be obtained by a second reaction path through the following intermediates. a.l) 6- (3-Q-Acetyl) -morphinyl n-octyl- ( ⁇ -D-tri-O-acetyl-qlucopyranosyl) -uronamide.
- a solution of 2.30 g of n-octyl- (tetra-O-acetyl- ⁇ -D-glucopyranosyl) -uronamide in 10 ml of 30% hydrobromic acid in acetic acid is prepared and kept overnight at 0 ° C.
- the solvent is evaporated and the residue is dissolved in HCC1 3 .
- the solution is extracted with cold aqueous bicarbonate and water. After drying the solvent, it is evaporated and the residue is purified by a column of silica gel eluted with ethyl acetate- / petroleum ether (5/5).
- the amorphous solid prepared in this way is checked to correspond to the structure of the expected compound by 1 H NMR spectroscopy.
- a third reaction path that also leads to the compound of this example can be carried out through the following intermediates.
- 6- (3-O-acetyl) acid - Morphnyl (tri-O-acetyl- ⁇ -D-glucopyranosyl) -uronic and 0.03 g of n-octyl amine in 10 ml of DMF is added a solution of 0.10 g of BOP in 5 ml of DMF.
- the reaction is stirred at room temperature for 1 hour. After this time, the mixture is diluted with HCC1 3 and extracted with water. The organic phase is dried with anhydrous sodium sulfate, filtered and the solvent is removed. The residue is then purified on a silica gel column using as a solvent a mixture of ethyl acetate / petroleum ether (9/1), obtaining the desired compound as a white solid.
- An alternative process can be as follows. To a solution of 0.68 g of 3-O-acetyl morphine and 0.53 g of silver triflate in 10 ml of dry dichloromethane in the presence of a 3A molecular sieve and under an argon atmosphere, an acid solution is slowly added (tri-O-acetyl- ⁇ -D-glucopyranosyl) uronic bromide. The reaction is maintained for 4 hours at -40 ° C and under stirring and then 0.3 ml of triethylamine is added. After bringing the reaction to room temperature and filtering the silver bromide, the filtrate is evaporated. The resulting residue is purified by column chromatography as described above, resulting in the expected compound.
- Uronic acid tri-O-acetyl-a-D-glucopyranosyl bromide.
- a solution of 2 g of tetra-O-a-cetyl-D-glucopyranosyl uronic acid in 10 ml of 30% hydrobromic acid in acetic acid is prepared and kept at 0 ° C overnight. The solvent is evaporated and the residue is crystallized from ethyl ether / hexane. The white solid is identified as the expected compound.
- a fourth reaction path can also be followed. This route is indicated by the intermediates described below. a.3) 6-Morphinyl n-octyl- (BD-glucopyranosyl) -uronamide acetate. A solution of 0.35 g of TBTU is added to a solution of 0.50 g of the 6-morphinyl- ⁇ -D-glucopyranosyl acid acetate, 0.14 g of n-octylamine and 0.15 g of HOBt in 20 ml of DMF. in 10 ml of DMF. The reaction is maintained overnight at room temperature.
- reaction crude is purified by silica gel column chromatography using as a solvent a mixture of ethyl acetate / water / methanol (9/4/5).
- desired compound is isolated as a white lyophilisate from an aqueous solution of acetic acid.
- Example 4 6-Morphinyl n-octyl- ( ⁇ -D-galactopyranosyl) uronamide acetate. This analogue has been synthesized from the corresponding intermediate of galacturonic acid by procedures similar to those described in example 3.
- the filtrate is evaporated and the residue is purified on a silica gel column using as a solvent a mixture of ethyl acetate / water / methanol (2: 3: 1). After lyophilizing the pure fractions of an aqueous solution of acetic acid, the compound is isolated as a white powder.
- the starting products can be synthesized as follows: a) Tri-O-acetyl- ⁇ -D-glucopyranosyl uronamide bromide.
- a solution of 3.00 g of tetra-O-acetyl- ⁇ -D-glucopyranosyl uronamide in 15 ml of bromine acid is prepared. 30% water in acetic acid and kept for 2 days at room temperature until complete dissolution. The solvent is evaporated and the residue is dissolved in HCC1 3 .
- the solution is extracted with 5% cold aqueous bicarbonate. After drying the solution, the solvent is evaporated and the residue is crystallized with ethyl acetate / methanol, obtaining the desired compound as a white solid.
- a mixture of 20 ml of acetic anhydride and 15 ml of pyridine is prepared. After cooling to 0 ° C, 5.00 g of glucuronamide are added under stirring. The solution is maintained for 48 hr at room temperature and under stirring until complete dissolution. The solvent is evaporated and the residue is crystallized with ethyl acetate / methanol, obtaining a white solid.
- the corresponding analogue with galactopyranosyl uronamide is obtained in a similar way to that described in example 5, using as an intermediate the galacturonic acid amide.
- Uranic 3-morphinyl ( ⁇ -D-galactopyranosyl) acid acetate The galacturonic acid analog of the compound natural M3G, is prepared following a reaction path similar to that described for the compound of example 5, starting from the corresponding intermediate of the lacturonic acid.
- a suspension of 2.00 g of morphine hydrochloride in 10 ml of methanol is prepared and 0.50 g of lithium hydroxide monohydrate are added. After the complete dissolution of the product is observed, a new white precipitate is obtained and 2.55 g of 2,3,4,6-tetra-O-acetyl- ⁇ -D-glucopyranoside bromide are added. The suspension is maintained at room temperature and with stirring. After 30 min a solution of 0.60 g of lithium hydroxide monohydrate in 10 ml of water is added. The reaction is allowed to continue for an additional 30 min and is then brought to pH: 8 with acetic acid. The precipitate corresponding to the unreacted morphine is removed by filtration and the filtrate is evaporated.
- the crude is purified by silica gel column chromatography using as a solvent a mixture of ethyl acetate / water / methanol (2: 3: 1).
- the pure fractions are evaporated, redissolved in water, filtered and lyophilized from an aqueous solution of acetic acid to obtain the expected compound as a white powder.
- the corresponding galactose derivative is synthesized similarly to example 8 and using commercial 2,3,4,6-tetra-O-acetyl- ⁇ -D-galactopyranoside bromide as the starting material.
- 6-morphinyl-6'-O-D-galactopyranosyl ether acetate 6-morphinyl-6'-O-D-galactopyranosyl ether acetate.
- the corresponding glucose derivative is prepared in a manner similar to that described in Example 10, using the corresponding commercial compound 1: 2.5: 6-di-O-isopropylidene- ⁇ -D-gluco-furanose as intermediate.
- This analogue is prepared in a similar way to the It is described in Example 10 from the commercial acetonide derived from alose, 1: 2,5: 6-di-O-isopropylidene- ⁇ -D-allofuranose.
- 6-morphinyl-6'-O-glucopyranosyl ether acetate 6-morphinyl-6'-O-glucopyranosyl ether acetate.
- This derivative is prepared by a process analogous to that described in Example 10 using the corresponding commercial compound 1: 2,3: 4 tetra-O-acetyl- ⁇ -D-glucopyranose suppressing treatment with Amberlite IR 120.
- 6-morphinyl-2'-O-manopyranosyl ether acetate 6-morphinyl-2'-O-manopyranosyl ether acetate.
- mannosylated analog is also prepared following the synthetic route described above (Example 10) from 1: 3,4: 6 tetra-O-acetyl- ⁇ -D-manopyranose, suppressing the step of hydrolysis of acetonide by Amberlite IR-120
- the corresponding galactose derivative is obtained by a route similar to that described in example 15, using acetobromo galactose as intermediate.
- 6-morphinyl acetate ( ⁇ -D-glucopyranosyl) uronamide.
- the amide derived from glucuronic acid is prepared following a procedure similar to that described in example 15, using the corresponding acetobromo derivative.
- 6-morphinyl f ⁇ -D-galactopyranosyl uronamide acetate This analog is obtained by a process similar to that described in example 15, using the corresponding amide of galacturonic acid.
- the corresponding galacturonic acid analog of the natural compound M6G is prepared in a manner similar to that of example 15, starting from a suitable intermediate of the galacturonic acid.
- Example 21 3-Noloxonyl- ⁇ -D-galactopyranosyl uronamide acetate. This analog is prepared by an analogous process using tetraacetyl- ⁇ -D-galactopyranoside bromide as the starting material.
- glucuronic acid analog amide is synthesized by a process similar to that described in example 20.
- Example 25 6-Morphinyl- ⁇ -D-glucopyranosyl-thiourethane acetate.
- the starting products can be synthesized as indicated below: a) 6-codeinyl-2, 3,4,6-0-tetraacetyl- ⁇ -D-glucopyranoside.
- the galactosylated codeine derivative is prepared following a procedure analogous to that described in example 26, starting from the ⁇ -D-galactose pentaacetate.
- Uronic 6-codeinyl-f ⁇ -D-glucopyranosyl) acetate 3.7 ml of 10% sodium hypochlorite are added to a stirred solution that has been prepared by dissolving 1 g of the 6-codeinyl- ⁇ -D-glucopyranoside described in example 26, 87 mg of sodium bromide and 2.2 mg of TEMPO in 55 ml. of water.
- the reaction temperature is maintained at 0 ° C and the pH is adjusted to 10.8 by the addition of a dilute solution of sodium hydroxide. After 1 hr the reaction is stopped by adding ethanol and neutralized with diluted HC1.
- Example 29 Uranic 6-codeinyl ( ⁇ -D-galactopyranosyl) acid acetate.
- 6-Codeinyl n-octyl ( ⁇ -D-qlucopyranosyl) urona ⁇ acetate 6-Codeinyl n-octyl ( ⁇ -D-qlucopyranosyl) urona ⁇ acetate.
- 6-co-acid acetate uronic deinyl ( ⁇ -D-glucopyranosyl) prepared as described in example 28, 80 mg of n-octylamine and 0.10 g of HOBt in 15 ml of DMF, a second solution of 0.24 g of HBTU is added in 10 ml of DMF. The reaction is maintained overnight at room temperature and with stirring.
- reaction crude is purified by silica gel column chromatography using as a solvent a mixture of ethyl acetate / water / methanol (9/4/5).
- desired compound is isolated as a white lyophilisate from an aqueous solution of acetic acid.
- 6-codeinyl n-octyl acetate ( ⁇ -D-galactopyranosyl uronamide.
- 0.25 ml of 30% sodium methoxide in methanol is added to a solution of 0.45 g of 4-loperamidyl 2,3,4,6 tetra-O-acetyl- ⁇ -D-glucopyranoside in 12 ml of dry methanol.
- the solution is neutralized with acetic acid after maintaining the reaction for 30 min at room temperature and with stirring.
- the solvent is removed under reduced pressure and the crude is purified by a column chromatography on silica gel and using ethyl acetate / water / methanol as a solvent (2: 3: 1). After collecting the pure fractions and lyophilizing them from an aqueous solution of acetic acid, the desired compound is isolated.
- a solution of 0.50 g of loperamide and 0.27 g of silver triflate in 10 ml of dry dichloromethane is prepared under argon in the presence of 3A molecular sieve, and kept under stirring at -20 ° C.
- the reaction is initiated by the slow addition of 0.43 g of tetraacetyl- ⁇ -D-glucopyranoside bromide in 5 ml of dry dichloromethane.
- the solution is allowed to evolve for 3 hr, after which 0.10 ml of triethylamine is added, and the mixture is allowed to reach room temperature.
- the silver salts are removed by filtration and the filtrate is evaporated under reduced pressure.
- the residue is finally purified on a silica gel column eluted with a mixture of chloroform / methanol (9: 1), obtaining the desired compound.
- This compound is prepared analogously using the derived bromine galact as the starting material.
- the galacturonic acid analog is synthesized following a process similar to that described in example 32.
- Example 36 4-Loperamidyl- ⁇ -D-galactopyranosyl uronamide acetate.
- this derivative is synthesized from the appropriate brominated intermediate.
- a solution of 0.80 g of methadol and 0.66 g of silver triflate in 15 ml of dry dichloromethane is dissolved under Argon's atmosphere in the presence of a 3A molecular sieve.
- the mixture is prepared and kept under stirring at -20 ° C.
- the reaction is initiated by slowly adding a solution of 1.00 g of tetraacetyl- ⁇ -D-glucopyranoside bromide in 10 ml of dry dichloromethane.
- Methadil- ⁇ -D-galactopyranoside acetate Methadil- ⁇ -D-galactopyranoside acetate.
- This compound is prepared analogously using the corresponding derivative bromine as a starting product.
- Methadil- ⁇ -D-galactopyranosyl uronic acid acetate The galacturonic acid analog is prepared following a process similar to that described in example 37.
- glucuronamide derivative is also synthesized following the reaction sequence described above.
- Methadil- ⁇ -D-galactopyranosyl uronamide acetate Methadil- ⁇ -D-galactopyranosyl uronamide acetate.
- This derivative is also prepared by a route synthetic similar to that of example 37, using as appropriate intermediate derivative bromine.
- Example 42 6-Pentazocyl- ⁇ -D-glucopyranoside acetate.
- 6-Pentazocyl- ⁇ -D-galactopyranoside acetate Following a process analogous to that described for example 42, this compound is prepared from the corresponding bromide tetraacetyl- ⁇ -D-galactopyranoside.
- Example 44 6-Pentazocyl- ⁇ -D-galactopyranosyl acid acetate.
- This analog is prepared following a route similar to that described in example 42, starting from the intermediate methyl (bromurodetri-O-acetyl- ⁇ -D-galactopyranosyl) -uro-nato.
- 6-Pentazocil- ⁇ -D-glucopyranosyl uronamide acetate 6-Pentazocil- ⁇ -D-glucopyranosyl uronamide acetate.
- the corresponding glucuronamide analog is prepared by a similar process, using the corresponding derivative acetobrom as an intermediate.
- Example 46 6-Pentazocyl- ⁇ -D-galactopyranosyl uronamide acetate.
- the galacturonamide derivative is synthesized following a route analogous to that described in example 42.
- Example 47 6-Cyclazoyl- ⁇ -D-glucopyranoside acetate.
- 0.75 g of tetraacetyl- ⁇ -D-glucopyranoside bromide are added to a solution of 0.50 g of cyclazocine and 0.06 g of lithium hydroxide in 5 ml of methanol. After stirring for 30 min at room temperature, a solution of 0.20 g of lithium hydroxide in 5 ml of water is added. The reaction is allowed to continue for another 30 min and is brought to pH: 8 with acetic acid. Unreacted cyclazocine is removed by filtration and the filtrate is purified by silica gel column chromatography, using a solvent as a solvent. ethyl acetate / water / methanol system (1: 1: 1). The desired compound is obtained, which is finally lyophilized from an aqueous solution of acetic acid.
- 6-Cyclazocil- ⁇ -D-galactopyranoside acetate The galactoside is prepared in a manner similar to that described in example 37, using the corresponding bromoacetate.
- Example 49 Uranic 6-cyclazocyl- ⁇ -D-galactopyranosyl acid acetate.
- This derivative is prepared from the corresponding uronate following a process similar to that already described.
- the glucuronamide derivative is prepared following a procedure analogous to that described in example 47.
- 6-Cyclazocil- ⁇ -D-galactopyranosyl uronamide acetate 6-Cyclazocil- ⁇ -D-galactopyranosyl uronamide acetate.
- the compounds of this invention show pharmacological activity and are therefore indicated for use with pharmaceutical and therapeutic purposes.
- the activity of the compounds of this invention can be observed in standard biological tests performed both "in vivo" and “in vitro".
- the compounds of this invention show a potency equal to or greater than their corresponding unmodified opioids (i.e., corresponding carbohydrate-free opiates) when administered intraperitoneally in laboratory animals. Some of them also show a longer duration of their biological action. Accordingly, the compounds of this invention are indicated for the treatment of the same conditions that are treated with unmodified opioids.
- the compounds of this invention can be compared with opioids of origin, unmodified, in standard antinociception tests, that is, in terms of potency and duration of their biological action.
- a pharmacological test can be performed to examine the effects of the compounds of this invention regarding the suppression of pain associated with harmful stimuli induced in laboratory animals.
- these compounds can be tested by measuring the time that animals remain insensitive to a painful stimulus.
- all are substances related to pain and, therefore, can be examined in the following tests of antinociception of immersion of the tail and pressure in the leg.
- Male Sprague-Dawley rats weighing 200 g are used.
- the animals are kept isolated in a room with a controlled temperature of 21 ° C with a 12-hour light-dark cycle with free access to food and water.
- the tail deviation test is carried out as described by D'Amour FE and Smith DL in A method for determining loss of pain sensations, J. Pharmacol. Exp. Ther. 72,74,1941.
- Nociceptive thresholds for mechanical stimulation are determined by the leg pressure test, using the left hind leg, as described in the literature (Randall LO and Selito JJ A method for measurement of analgesic activity on inflamed tissue , Arch.Int. Pharmacodyn. Ther. 1957, 11, 409-419.). Pain thresholds are measured in an analgesimeter. The device is programmed to apply a force of 0 to 1000 g that increases from zero at a rate of 64 g / s. The point at which the rat vocalizes or stirs vigorously is taken as the nociceptive threshold.
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Abstract
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP9521758A JPH10513485A (ja) | 1995-11-29 | 1996-11-15 | オピエート性物質の糖結合体 |
EP96938222A EP0816375A1 (en) | 1995-11-29 | 1996-11-15 | Glycoconjugates of opiated substances |
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ES9502346 | 1995-11-29 | ||
ESP9502346 | 1995-11-29 |
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WO1997021416A2 true WO1997021416A2 (es) | 1997-06-19 |
WO1997021416A3 WO1997021416A3 (es) | 1997-09-12 |
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ID=8292324
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PCT/ES1996/000214 WO1997021416A2 (es) | 1995-11-29 | 1996-11-15 | Glicoconjugados de substancias opiaceas |
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EP (1) | EP0816375A1 (es) |
JP (1) | JPH10513485A (es) |
CA (1) | CA2211596A1 (es) |
WO (1) | WO1997021416A2 (es) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998046618A1 (en) * | 1997-04-14 | 1998-10-22 | Salford Ultrafine Chemicals And Research Ltd. | Morphine derivatives |
US6740641B2 (en) | 2001-07-27 | 2004-05-25 | Euro-Celtique, S.A. | Sugar derivatives of hydromorphone, dihydromorphine and dihydromorphine, compositions thereof and uses for treating or preventing pain |
US8569343B2 (en) | 2007-03-12 | 2013-10-29 | Nektar Therapeutics | Oligomer-opioid agonist conjugates |
US10512644B2 (en) | 2007-03-12 | 2019-12-24 | Inheris Pharmaceuticals, Inc. | Oligomer-opioid agonist conjugates |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9711118D0 (en) * | 1997-05-29 | 1997-07-23 | Rolabo Sl | Compound |
GB0218811D0 (en) * | 2002-08-14 | 2002-09-18 | Cenes Ltd | Salts of morphine-6-glucuronide |
FR2864082B1 (fr) * | 2003-12-22 | 2006-03-10 | Synt Em | Nouveau derive de la morphine-6-glucuronide, composition pharmaceutique le contenant et son utilisation pour le traitement de la douleur |
FR2907121B1 (fr) * | 2006-10-12 | 2012-05-04 | Neorphys | Nouveaux derives morphiniques |
CN103360271B (zh) * | 2013-06-19 | 2015-09-16 | 广州万孚生物技术股份有限公司 | 美沙酮半抗原及其制备方法、美沙酮抗原和美沙酮单克隆抗体及其应用 |
CN103864866B (zh) * | 2014-03-26 | 2016-05-25 | 宜昌人福药业有限责任公司 | 一种吗啡-6-β-D-葡萄糖醛酸苷的合成方法及其中间体化合物 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
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DE839799C (de) * | 1952-04-17 | Muri Bern Dr. Paul Casparis (Schweiz) | Verfahren zur Herstellung von Morphin-6-glycosiden | |
US3647806A (en) * | 1966-04-18 | 1972-03-07 | Syntex Corp | Tetrahydropyranyl and tetrahydro-furanyl benzomorphan ethers |
US4159333A (en) * | 1970-06-11 | 1979-06-26 | United States Of America | N-Methyl levo benzomorphan analgesics having non-addictive and morphine antagonistic properties |
US4012525A (en) * | 1975-10-10 | 1977-03-15 | Eli Lilly And Company | Novel propoxyphene dosage regimen |
JPS54105237A (en) * | 1978-02-02 | 1979-08-18 | Sankyo Co Ltd | Analgesic agent containing nalorphine-6-glucuronide |
JPS59152328A (ja) * | 1983-02-18 | 1984-08-31 | Eisai Co Ltd | サリチル酸誘導体含有鎮痛剤 |
US4973596A (en) * | 1988-05-20 | 1990-11-27 | Barr Laboratories, Inc. | Method of administering a narcotic analgesic and dosage forms therefor |
GB9116909D0 (en) * | 1991-08-06 | 1991-09-18 | Salford Ultrafine Chem & Res | Morphine derivatives |
FR2680786B1 (fr) * | 1991-09-04 | 1995-03-10 | Irepa | Procede de synthese de glucuronides d'epoxy-4,5 morphinanes. |
GB2282758A (en) * | 1993-08-23 | 1995-04-19 | Euro Celtique Sa | Oral morphine-6-glucuronide compositions |
-
1996
- 1996-11-15 CA CA002211596A patent/CA2211596A1/en not_active Abandoned
- 1996-11-15 JP JP9521758A patent/JPH10513485A/ja active Pending
- 1996-11-15 WO PCT/ES1996/000214 patent/WO1997021416A2/es not_active Application Discontinuation
- 1996-11-15 EP EP96938222A patent/EP0816375A1/en not_active Ceased
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998046618A1 (en) * | 1997-04-14 | 1998-10-22 | Salford Ultrafine Chemicals And Research Ltd. | Morphine derivatives |
GB2339196A (en) * | 1997-04-14 | 2000-01-19 | Salford Ultrafine Chem & Res | Morphine derivatives |
GB2339196B (en) * | 1997-04-14 | 2001-11-07 | Salford Ultrafine Chem & Res | Morphine derivatives |
US6740641B2 (en) | 2001-07-27 | 2004-05-25 | Euro-Celtique, S.A. | Sugar derivatives of hydromorphone, dihydromorphine and dihydromorphine, compositions thereof and uses for treating or preventing pain |
US8569343B2 (en) | 2007-03-12 | 2013-10-29 | Nektar Therapeutics | Oligomer-opioid agonist conjugates |
US8946285B2 (en) | 2007-03-12 | 2015-02-03 | Nektar Therapeutics | Oligomer-opioid agonist conjugates |
US8952032B2 (en) | 2007-03-12 | 2015-02-10 | Nektar Therapeutics | Oligomer-opioid agonist conjugates |
US9233167B2 (en) | 2007-03-12 | 2016-01-12 | Nektar Therapeutics | Oligomer-opioid agonist conjugates |
US9233168B2 (en) | 2007-03-12 | 2016-01-12 | Nektar Therapeutics | Oligomer-opioid agonist conjugates |
US9458166B2 (en) | 2007-03-12 | 2016-10-04 | Nektar Therapeutics | Oligomer-opioid agonist conjugates |
US9512135B2 (en) | 2007-03-12 | 2016-12-06 | Nektar Therapeutics | Oligomer-opioid agonist conjugates |
US9827239B2 (en) | 2007-03-12 | 2017-11-28 | Nektar Therapeutics | Oligomer-opioid agonist conjugates |
US10143690B2 (en) | 2007-03-12 | 2018-12-04 | Nektar Therapeutics | Oligomer-opioid agonist conjugates |
US10307416B2 (en) | 2007-03-12 | 2019-06-04 | Nektar Therapeutics | Oligomer-opioid agonist conjugates |
US10512644B2 (en) | 2007-03-12 | 2019-12-24 | Inheris Pharmaceuticals, Inc. | Oligomer-opioid agonist conjugates |
Also Published As
Publication number | Publication date |
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EP0816375A1 (en) | 1998-01-07 |
JPH10513485A (ja) | 1998-12-22 |
CA2211596A1 (en) | 1997-06-19 |
WO1997021416A3 (es) | 1997-09-12 |
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