WO2019034059A1 - 新化合物及其在治疗炎症或炎症相关疾病方面的应用 - Google Patents

新化合物及其在治疗炎症或炎症相关疾病方面的应用 Download PDF

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WO2019034059A1
WO2019034059A1 PCT/CN2018/100503 CN2018100503W WO2019034059A1 WO 2019034059 A1 WO2019034059 A1 WO 2019034059A1 CN 2018100503 W CN2018100503 W CN 2018100503W WO 2019034059 A1 WO2019034059 A1 WO 2019034059A1
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Prior art keywords
compound
formula
inflammation
pain
utloh
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PCT/CN2018/100503
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English (en)
French (fr)
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赵军宁
邵佳驹
张翼冠
尹竹君
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四川省中医药转化医学中心
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Priority to US16/757,796 priority Critical patent/US11618738B2/en
Publication of WO2019034059A1 publication Critical patent/WO2019034059A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D261/00—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings
    • C07D261/02—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings
    • C07D261/06—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings having two or more double bonds between ring members or between ring members and non-ring members
    • C07D261/10—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings having two or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D261/18—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P19/00—Drugs for skeletal disorders
    • A61P19/02—Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P17/00—Drugs for dermatological disorders
    • A61P17/06—Antipsoriatics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P19/00—Drugs for skeletal disorders
    • A61P19/06—Antigout agents, e.g. antihyperuricemic or uricosuric agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P19/00—Drugs for skeletal disorders
    • A61P19/08—Drugs for skeletal disorders for bone diseases, e.g. rachitism, Paget's disease
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A61P25/04—Centrally acting analgesics, e.g. opioids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A61P25/06—Antimigraine agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]

Definitions

  • the present invention relates to the field of medicinal chemistry, and in particular to novel compounds and their use in the treatment of inflammation-related diseases.
  • Inflammation is the response of the immune system to infection and injury.
  • the pathogenesis of many diseases or health problems involves inflammation. These include mild to moderate pain, low back pain, elbow caused by rheumatoid arthritis, osteoarthritis, psoriatic arthritis, reactive arthritis, ankylosing spondylitis, gouty arthritis, fever, inflammation and tissue damage.
  • Inflammation headache, migraine, acute gout, menstrual pain, metastatic bone pain, postoperative pain, muscle stiffness, pain caused by Parkinson's disease, and macular edema.
  • anti-inflammatory drugs available; a specific example is leflunomide.
  • Leflunomide is an anti-inflammatory agent; it is approved for the treatment of rheumatoid arthritis and inflammation-related diseases in Europe and the United States. However, it is associated with many adverse reactions.
  • An object of the present invention is to provide a novel compound which is excellent in curative effect, small side effect, and simple in synthesis method for treating inflammation or a related disease thereof.
  • a first aspect of the invention provides a compound of formula I, or a salt thereof, or an optical isomer thereof, or a racemate thereof, or a solvate thereof, or a precursor thereof,
  • each R is independently selected from the group consisting of -OH, -OCH 3 , -OCH 2 CH 3 ;
  • n is an integer of 1, or 2 or 3.
  • each R may be the same or different.
  • each R is independently selected from the group consisting of -OH.
  • R includes at least 2 hydroxyl groups.
  • m further comprises an integer of 4 or 5.
  • m further includes 4 or 5.
  • n is 2.
  • the compound is selected from the group consisting of:
  • a second aspect of the invention provides a pharmaceutical composition comprising:
  • the pharmaceutical composition contains 0.0001 to 99% by weight (preferably 0.01 to 90% by weight, more preferably 0.1 to 80% by weight) of the component (i) to the total of the pharmaceutical composition. Weight meter.
  • a third aspect of the invention provides a pharmaceutical composition comprising:
  • the compound of formula II is selected from the group consisting of
  • the pharmaceutical composition contains 0.0001 to 99% by weight (preferably 0.01 to 90% by weight, more preferably 0.1 to 80% by weight) of the component (i) to the total of the pharmaceutical composition. Weight meter.
  • the pharmaceutical composition further comprises a second active ingredient, which is a compound of formula I according to the first aspect of the invention, or a salt thereof, or an optical isomer thereof, or A racemate thereof, or a solvate thereof, or a precursor thereof; wherein the compound of formula I is as defined in the first aspect of the invention.
  • a second active ingredient which is a compound of formula I according to the first aspect of the invention, or a salt thereof, or an optical isomer thereof, or A racemate thereof, or a solvate thereof, or a precursor thereof; wherein the compound of formula I is as defined in the first aspect of the invention.
  • the weight ratio of the first active ingredient to the second active ingredient is from 1:100 to 100:1, preferably from 1:10 to 10:1.
  • the pharmaceutical composition contains 0.0001 to 99% by weight (preferably 0.01 to 90% by weight, more preferably 0.1 to 80% by weight) of the component (i) to the total of the pharmaceutical composition. Weight meter.
  • the pharmaceutical composition contains 0.0001 to 99% by weight (preferably 0.01 to 90% by weight, more preferably 0.1 to 80% by weight) of the second active ingredient to the pharmaceutical composition. Total weight.
  • the pharmaceutical composition may be a single compound or a mixture of a plurality of compounds.
  • the pharmaceutical composition is for the preparation of a medicament or preparation for treating an inflammation or inflammation related disease.
  • the pharmaceutical composition is for the preparation of a medicament or preparation for treating a gout or gout-related disease.
  • the pharmaceutical composition is for use in the preparation of a medicament or preparation for an analgesic or analgesic-related disease.
  • the gout or gout-related disease is selected from the group consisting of acute characteristic arthritis, chronic tophus disease, acute onset arthritis, tophi formation, tophus chronic arthritis, urate Kidney disease, urinary urinary tract stones, or a combination thereof.
  • the gout refers to acute characteristic arthritis and chronic tophi stone disease.
  • the gout includes acute onset arthritis, tophi formation, tophus chronic arthritis, urate kidney disease, and urinary acidic urinary calculi.
  • the analgesia refers to treatment for acute and chronic pain or the like.
  • the analgesia refers to the treatment of acute pain, including: soft tissue and joint acute pain, post-operative pain, obstetric pain, acute herpes zoster pain, and/or gout.
  • the analgesia refers to the treatment of chronic pain, including: soft tissue and joint strain or degenerative pain, discogenic pain, and/or neuropathic pain.
  • the analgesia refers to the treatment of refractory pain, including: trigeminal neuralgia, postherpetic neuralgia, and/or disc herniation.
  • the analgesia refers to the treatment of cancer pain, including: advanced tumor pain, and/or tumor metastatic pain.
  • the analgesia refers to the treatment of a particular type of pain, including: thrombotic vasculitis, refractory angina, and/or idiopathic chest and abdominal pain.
  • the pharmaceutical composition is used to prepare a LPS-induced selective modulator of PGE2 and NO.
  • the inflammation or inflammation-related disease is selected from the group consisting of rheumatoid arthritis, osteoarthritis, psoriatic arthritis, reactive arthritis, ankylosing spondylitis, gouty arthritis, fever, Mild to moderate pain, back pain, elbow inflammation, headache, migraine, acute gout, menstrual pain, metastatic bone pain, postoperative pain, muscle stiffness, pain caused by Parkinson's disease, and inflammation caused by inflammation and tissue damage Macular edema, or a combination thereof.
  • the pharmaceutical composition further comprises an additional agent for treating an inflammation or inflammation related disease.
  • the additional agent for treating an inflammation or inflammation-related disease is selected from the group consisting of dexamethasone, ibuprofen, leflunomide, teriflurane, malononitrile, diclofenac sodium, Potassium diclofenac, naproxen, naproxen sodium, or a combination thereof.
  • a fourth aspect of the invention provides a compound of formula I according to the first aspect of the invention, or a salt thereof, or an optical isomer thereof, or a racemate thereof, or a solvate thereof, or a precursor thereof, or Use of the pharmaceutical composition according to the second aspect of the invention or the third aspect of the invention for the preparation of a medicament or a preparation for (i) treating an inflammation or inflammation-related disease; and/or Ii) Regulate LPS-induced levels of PGE2 and NO.
  • the medicament or formulation is also used to (iii) treat gout; and/or (iv) analgesia.
  • the regulation of LPS-induced levels of PGE2 and NO is inhibition of levels of PGE2 and NO.
  • the inflammation or inflammation-related disease is selected from the group consisting of rheumatoid arthritis, osteoarthritis, psoriatic arthritis, reactive arthritis, ankylosing spondylitis, gouty arthritis, fever, Mild to moderate pain, back pain, elbow inflammation, headache, migraine, acute gout, menstrual pain, metastatic bone pain, postoperative pain, muscle stiffness, pain caused by Parkinson's disease, and inflammation caused by inflammation and tissue damage Macular edema, or a combination thereof.
  • the gout comprises acute characteristic arthritis and/or chronic tophi stone disease.
  • the gout comprises acute onset arthritis, tophi formation, tophus chronic arthritis, urate kidney disease, and/or urinary acidic urinary calculi.
  • the analgesia refers to treatment for acute and chronic pain or the like.
  • the analgesia refers to the treatment of acute pain, including: soft tissue and joint acute pain, post-operative pain, obstetric pain, acute herpes zoster pain, and/or gout.
  • the analgesia refers to the treatment of chronic pain, including: soft tissue and joint strain or degenerative pain, discogenic pain, and/or neuropathic pain.
  • the analgesia refers to the treatment of refractory pain, including: trigeminal neuralgia, postherpetic neuralgia, and/or disc herniation.
  • the analgesia refers to the treatment of cancer pain, including: advanced tumor pain, and/or tumor metastatic pain.
  • the analgesia refers to the treatment of a particular type of pain, including: thrombotic vasculitis, refractory angina, and/or idiopathic chest and abdominal pain.
  • a process for the preparation of a compound of the formula I or a salt thereof comprising the steps of:
  • R and m are as defined in the first aspect of the invention.
  • the inert solvent is selected from the group consisting of dichloromethane (DCM), chloroform, benzene, or a combination thereof.
  • reaction is carried out in the presence of an acid binding agent.
  • the acid binding agent is selected from the group consisting of potassium carbonate (K 2 CO 3 ), triethylamine (Et 3 N), pyridine (Py), or a combination thereof.
  • the reaction temperature is 0 to 150 ° C (or reflux temperature), preferably 10 to 80 ° C, more preferably 20 to 60 ° C.
  • the reaction time is from 0.1 to 12 hours, more preferably from 0.2 to 5 hours, still more preferably from 0.4 to 3 hours.
  • R is methoxy
  • the compound of formula 1-2 is prepared by the following method:
  • the inert solvent is selected from the group consisting of dichloromethane (DCM), chloroform, benzene, or a combination thereof.
  • the reaction temperature is 0 to 150 ° C (or reflux temperature), preferably 10 to 80 ° C, more preferably 20 to 60 ° C.
  • the reaction time is from 0.1 to 12 hours, more preferably from 0.2 to 5 hours, still more preferably from 0.4 to 3 hours.
  • the method further comprises the step of demethylating.
  • the demethylation is carried out in the presence of an inert solvent.
  • the inert solvent is selected from the group consisting of dichloromethane, chloroform, benzene, or a combination thereof.
  • a sixth aspect of the invention provides a method for inhibiting LPS-induced PGE2 and NO in vitro, comprising the steps of:
  • the compound of formula II is selected from the group consisting of
  • the mammalian cell comprises a human or non-human mammalian cell.
  • the non-human mammal comprises: a rodent (e.g., mouse, rat, rabbit), a primate (e.g., a monkey).
  • a rodent e.g., mouse, rat, rabbit
  • a primate e.g., a monkey
  • the cell selection comprises RAW 264.7 cells.
  • the method is non-therapeutic and non-diagnostic.
  • a seventh aspect of the invention provides a method of treating an inflammation or inflammation-related disease, comprising:
  • the compound of the formula I according to the first aspect of the invention or the pharmaceutical composition according to the second aspect of the invention or the third aspect of the invention is administered to a subject in need thereof.
  • the subject comprises a human or a non-human mammal.
  • the non-human mammal comprises: a rodent (e.g., mouse, rat, rabbit), a primate (e.g., a monkey).
  • a rodent e.g., mouse, rat, rabbit
  • a primate e.g., a monkey
  • the administration dose is 0.01 to 1000 mg/kg/day, preferably 0.1 to 100 mg/kg/day, more preferably 1 to 50 mg/kg/day.
  • the application frequency is 1-3 times/day, preferably 1-2 times/day.
  • the frequency of use is from about 0.001 to about 1000 mg/kg body weight per day, preferably from about 1.0 to about 30 mg/kg body weight per day.
  • the administration comprises one or more cycles, each cycle being from 1 to 7 days, preferably from 2 to 5 days.
  • Figure 1 shows a representative synthetic scheme for the compounds of formula I of the present invention.
  • the starting material 5-methylisoxazole-3-carboxylic acid (I-1) is reacted with SOCl 2 to prepare a compound I-2.
  • Step 2 is a reaction of Compound 1-2 with Compound IA to prepare Compound 1-3.
  • Step 3 is the demethylation of compound 1-3 to prepare a compound of formula I of the present invention.
  • FIG. 2 shows a representative synthetic scheme for UTLOH compounds (i.e., UTLOH-4a, -4b, and -4c).
  • the starting material 5-methylisoxazole-3-carboxylic acid (I-1) is reacted with SOCl 2 to prepare a compound I-2.
  • Step 2 is the preparation of compound 3a, 3b or 3c by reaction of compound I-2 with the corresponding anisidine such as o-, m-, or p-anisidine.
  • Step 3 is the demethylation of compound 3a, 3b or 3c to prepare UTLOH-4a, -4b or -4c.
  • the inventors have synthesized a series of UTLOH compounds through long-term and in-depth research, and the compounds of the present invention can effectively inhibit LPS-induced PGE2 and NO levels, and can effectively treat inflammation or inflammation-related diseases, treat gout, and / or analgesia. On the basis of this, the inventors completed the present invention.
  • the compounds of the invention may contain one or more asymmetric centers and thus occur as racemates, racemic mixtures, single enantiomers, diastereomeric compounds and single diastereomers.
  • the asymmetric center that can exist depends on the nature of the various substituents on the molecule. Each such asymmetric center will independently produce two optical isomers, and all possible optical isomers and diastereomeric mixtures and pure or partially pure compounds are included within the scope of the invention.
  • the invention includes all isomeric forms of the compounds.
  • room temperature means 4-40 ° C, preferably 20-25 ° C.
  • compounds of the invention are used interchangeably and refer to a compound having the structure of formula I.
  • the term also includes salts, optical isomers, racemates, solvates (eg, hydrates), and/or precursors of the compounds of Formula I,
  • R and m are as described above.
  • each reaction is mostly carried out in an inert solvent at 0 ° C to 150 ° C (or reflux temperature) (preferably, 10-60 ° C, or 20-40 ° C) for a period of time. (eg 0.1-72 hours, preferably 2-20 hours).
  • room temperature means 4-35 ° C, preferably 20-30 ° C.
  • the compounds of formula I of the present invention can be prepared by the following schemes and exemplary methods described in the Examples and related publications used by those skilled in the art.
  • the methods of preparing the compounds of formula I of the present invention may include, but are not limited to, the following schemes.
  • step 1 an I-1 compound (such as 5-methylisoxazole-3-carboxylic acid) is first refluxed with SOCl 2 in an inert solvent such as dichloromethane for about 1-8 hours (preferably 2-4 hours), additional SOCl 2 is removed in a vacuum, thereby forming the compound of formula-2 I.
  • an inert solvent such as dichloromethane
  • step 2 in an inert solvent (such as dichloromethane), compound I-2 is dissolved in dichloromethane, compound IA (such as anisidine) is slowly added, reaction S is carried out at room temperature, and a suitable amount of triethyl is added. An amine promotes the progress of the reaction. The reaction is carried out for about 0.1 hour to 4 hours (preferably 0.2 hours to 3 hours), and the dichloromethane is removed in vacuo to form a compound of formula 1-3.
  • an inert solvent such as dichloromethane
  • step 3 EtSH and AlCl 3 are added to compound I-3 for demethylation in an inert solvent such as dichloromethane to prepare a compound of formula I.
  • the present invention also provides a pharmaceutical composition
  • a pharmaceutical composition comprising (a) an effective amount of a compound of formula I, or a salt thereof, or an optical isomer thereof, or a racemate thereof, or a solvate thereof, Or a precursor thereof and (b) a pharmaceutically acceptable carrier.
  • the pharmaceutical composition comprises (i) a compound of formula II, wherein the compound of formula II is And (ii) a pharmaceutically acceptable carrier.
  • the pharmaceutical composition may further comprise (iii) an effective amount of a compound of formula I, or a salt thereof, or an optical isomer thereof, or a racemate thereof, or a solvate thereof, or Precursor.
  • the compound of formula II is selected from the group consisting of:
  • active ingredient means a compound of the formula I according to the invention, or a salt thereof, or an optical isomer thereof, or a racemate thereof, or a solvate thereof, or a precursor thereof; or Formula II Compound.
  • the "active ingredient" and pharmaceutical compositions of the present invention can be used to prepare (i) to treat inflammation or inflammation related diseases; and/or (ii) to modulate LPS-induced levels of PGE2 and NO; and/or (iii) to treat gout And/or (iv) analgesic drugs.
  • the disease is selected from the group consisting of rheumatoid arthritis, osteoarthritis, psoriatic arthritis, reactive arthritis, ankylosing spondylitis, gouty arthritis, fever, inflammation, and tissue damage.
  • the pharmaceutical compositions contain from 1 to 2000 mg of active ingredient per dose, more preferably from 10 to 200 mg of active ingredient per dose.
  • the "one dose” is a tablet.
  • “Pharmaceutically acceptable carrier” means: one or more compatible solid or liquid fillers or gel materials which are suitable for human use and which must be of sufficient purity and of sufficiently low toxicity.
  • “compatibility” it is meant herein that the components of the composition are capable of intermingling with the active ingredients of the present invention and with respect to each other without significantly reducing the efficacy of the active ingredients.
  • the compounds of the preferred embodiments of the invention may be administered as separate active agents or in combination with one or more other agents useful in the treatment of inflammation or inflammation related diseases.
  • the use of the compounds of the preferred embodiments of the invention in combination with known therapeutic agents is also effective, and combinations of currently known compounds and other therapeutic agents for treating inflammation or inflammation related diseases are within the scope of the preferred embodiments.
  • One of ordinary skill in the art will be able to discern effective combinations of agents based on the particular nature of the drug and the disease involved.
  • Such therapeutic agents for treating inflammation or inflammation-related diseases include, but are not limited to, the following: dexamethasone, ibuprofen, leflunomide, teriflurane, malononitrile, diclofenac sodium, diclofenac potassium, naproxen Raw, naproxen sodium, etc.
  • dexamethasone ibuprofen, leflunomide, teriflurane, malononitrile, diclofenac sodium, diclofenac potassium, naproxen Raw, naproxen sodium, etc.
  • the compounds of the preferred embodiments are also effective when administered simultaneously with a therapeutic agent for treating an inflammation or inflammation-related disease.
  • compositions of the invention may advantageously be administered in the form of injectable compositions or as liquid solutions or suspensions. Additional compositions are suitable for oral administration (eg, enteric coated tablets). Oral pharmaceutical compositions include typical excipients such as pharmaceutical grade mannitol, lactose, starch, magnesium stearate, sodium saccharin, cellulose, magnesium carbonate, and the like.
  • the pharmaceutical composition is in the form of a solution, suspension, tablet, pill, capsule, sustained release component or powder. When applied topically, it may be in the form of a cream, ointment, ointment or spray.
  • the compounds of the preferred embodiments will be administered in a therapeutically effective amount by any of the accepted modes of administration of agents having similar effects.
  • the actual amount of the compound (i.e., active ingredient) of the preferred embodiment is determined by a number of factors, such as the severity of the condition to be treated, the age and relative health of the patient, the potency of the compound being used, the route and form of administration, and other factors. .
  • the drug can be administered multiple times a day, preferably once or twice a day. All of these factors are within the consideration of the attending physician.
  • the therapeutically effective dose may generally be a total daily dose administered to a patient in a single administration or in divided doses, for example, from about 0.01 to about 1000 mg/kg body weight per day, preferably from about 0.1 to about 100 per day. Mg/kg body weight, more preferably, 1-50 mg/kg body weight.
  • a Dosage unit composition can include its dosage factor to form a daily dose. The choice of dosage form will depend on various factors such as the mode of administration and the bioavailability of the drug substance.
  • the compounds of the preferred embodiments can be administered as a pharmaceutical composition by any of the following routes: oral, systemic (e.g., transdermal, intranasal or by suppository), or parenteral (e.g., intramuscular, intravenous). Or subcutaneous).
  • the preferred mode of administration is oral, and a convenient daily dose can be adjusted depending on the degree of bitterness.
  • the compositions may take the form of tablets, pills, capsules, semi-solids, powders, sustained release formulations, solutions, suspensions, elixirs, aerosols or any other suitable compositions.
  • Another preferred mode of administration of the preferred embodiment compounds is inhalation. This is an effective method of delivering a therapeutic agent directly to the respiratory tract (see, e.g., U.S. Patent No. 5,607,915).
  • Suitable pharmaceutically acceptable carriers or excipients include, for example, treatment and drug delivery modifiers and accelerators such as calcium phosphate, magnesium stearate, talc, monosaccharides, disaccharides, starches, gelatin, cellulose , sodium methylcellulose, carboxymethylcellulose, glucose, hydroxypropyl-B-cyclodextrin, polyvinylpyrrolidone, low melting wax, ion exchange resin, and the like, and combinations of any two or more thereof.
  • treatment and drug delivery modifiers and accelerators such as calcium phosphate, magnesium stearate, talc, monosaccharides, disaccharides, starches, gelatin, cellulose , sodium methylcellulose, carboxymethylcellulose, glucose, hydroxypropyl-B-cyclodextrin, polyvinylpyrrolidone, low melting wax, ion exchange resin, and the like, and combinations of any two or more thereof.
  • the liquid and semi-solid excipients may be selected from the group consisting of glycerin, propylene glycol, water, ethanol, and various oils including petroleum, animal oil, vegetable oil, or synthetic sources such as peanut oil, soybean oil, mineral oil, sesame oil, and the like.
  • Preferred liquid carriers, particularly carriers for injectable solutions include water, saline, aqueous dextrose and ethylene glycol.
  • Other suitable pharmaceutically acceptable excipients are described in Remington's Pharmaceutical Sciences, Mack Pub. Co., New Jersey (1991), incorporated herein by reference.
  • pharmaceutically acceptable salt refers to a non-toxic acid or alkaline earth metal salt of a compound of formula I. These salts can be prepared in situ by final isolation and purification of the compound of formula I, or by separately reacting a suitable organic or inorganic acid or base with a basic or acidic functional group.
  • Representative salts include, but are not limited to, acetate, adipate, alginate, citrate, aspartate, benzoate, besylate, hydrogen sulfate, butyrate , camphorate, camphor sulfonate, digluconate, cyclopentane propionate, lauryl sulfate, ethanesulfonate, glucose heptanoate, glycerol phosphate, hemisulfate, heptanoic acid Salt, hexanoate, fumarate, hydrochloride, hydrobromide, hydroiodide, 2-hydroxyethanesulfonate, lactate, maleate, methanesulfonate, nicotinate , 2-naphthyl sulfonate, oxalate, pamoate, pectate, thiocyanate, 3-phenylpropionate, picrate, pivalate, propionate, Succinate, sul
  • the nitrogen-containing basic group can be quaternized by the following reagents: alkyl halides such as methyl, ethyl, propyl, butyl chloride, bromide and iodide; dialkyl sulfate Such as dimethyl, diethyl, dibutyl and dipentyl sulfate; long chain halides such as sulfhydryl, lauryl, myristyl and stearyl chlorides, bromides and iodides; aralkyl Base halides such as benzyl and phenethyl bromide. A water soluble or oil soluble or dispersible product is thus obtained.
  • alkyl halides such as methyl, ethyl, propyl, butyl chloride, bromide and iodide
  • dialkyl sulfate Such as dimethyl, diethyl, dibutyl and dipentyl sulfate
  • long chain halides
  • Examples of the acid which can be used to form a pharmaceutically acceptable acid addition salt include inorganic acids such as hydrochloric acid, sulfuric acid, phosphoric acid, and organic acids such as oxalic acid, maleic acid, methanesulfonic acid, succinic acid, and citric acid.
  • the base addition salt can be prepared in situ upon final isolation and purification of the compound of formula I, or by separately reacting the carboxylic acid moiety with a suitable base such as a hydroxide, carbonate or carbonate of a pharmaceutically acceptable metal cation. Hydrogen salt) or ammonia, or organic primary, secondary or tertiary amine reaction.
  • Pharmaceutically acceptable salts include, but are not limited to, alkali metal and alkaline earth metal based cations such as sodium, lithium, potassium, calcium, magnesium, aluminum, and the like, as well as non-toxic ammonium, quaternary ammonium, and amine cations, including However, it is not limited to: ammonium, tetramethylammonium, tetraethylammonium, methylamine, dimethylamine, trimethylamine, triethylamine, ethylamine and the like.
  • Other representative organic amines useful for the formation of base addition salts include diethylamine, ethylenediamine, ethanolamine, diethanolamine, piperazine, and the like.
  • the term "pharmaceutically acceptable prodrug” refers to a prodrug of a compound of those preferred embodiments, which is rapidly converted in vivo to a parent compound of the above formula, for example, hydrolyzed in blood.
  • pharmaceutically acceptable prodrug refers to a prodrug of a compound of those preferred embodiments, which is rapidly converted in vivo to a parent compound of the above formula, for example, hydrolyzed in blood.
  • the invention also provides the use of the compounds of formula I described.
  • the invention further provides the use of a pharmaceutical composition comprising a compound of the formula I according to the invention or a pharmaceutical composition comprising a compound of the formula II according to the invention or a compound of the formula I according to the invention and a compound of the formula II.
  • the compound of formula I is for use in the preparation of a medicament or formulation for (i) treatment of an inflammation or inflammation-related disease; and/or (ii) modulation of LPS-induced PGE2 and The level of NO.
  • the pharmaceutical composition of the compound of the formula I according to the invention or the pharmaceutical composition comprising a compound of the formula I according to the invention and a compound of the formula II is used for the preparation of a medicament or preparation for use in the preparation of a medicament or preparation (i) treating an inflammatory or inflammatory related disease; and/or (ii) modulating LPS-induced levels of PGE2 and NO; and/or (iii) treating gout; and/or (iv) analgesia.
  • the disease is selected from the group consisting of rheumatoid arthritis, osteoarthritis, psoriatic arthritis, reactive arthritis, ankylosing spondylitis, gouty arthritis, fever, inflammation, and Mild to moderate pain, back pain, elbow inflammation, headache, migraine, acute gout, menstrual pain, metastatic bone pain, postoperative pain, muscle stiffness, pain caused by Parkinson's disease, and macular edema caused by tissue damage , acute onset arthritis, tophi formation, tophus chronic arthritis, urate nephropathy, urinary acid urinary calculi, soft tissue and joint acute pain, postoperative pain, obstetric pain, acute herpes zoster pain, soft tissue And joint strain or degenerative pain, discogenic pain, neuropathic pain, trigeminal neuralgia, postherpetic neuralgia, disc herniation, advanced tumor pain, tumor metastasis, thrombotic vasculitis, refractory angina ,
  • the compounds of the invention have very good drug properties (e.g., solubility, bioavailability, etc.).
  • Prostaglandins play an important role in the production of inflammatory responses. Significant increases in inflamed tissues can be their biosynthesis, which contributes to the development of major signs of acute inflammation: redness, fever, swelling and pain.
  • Prostaglandin E2 (PGE2) is one of the most abundant prostaglandins (PGs) produced in the body and is also an important mediator of many biological functions. PGE2 is of particular interest for inflammation because it involves all processes that cause classic signs of inflammation: redness, swelling, and pain.
  • the compounds of the present invention can modulate LPS-induced PGE2 levels.
  • the compounds of the invention have an inhibitory effect on LPS-induced PGE2 levels.
  • Nitric oxide is a signaling molecule that plays a key role in the pathogenesis of inflammation.
  • NO is a pro-inflammatory mediator that causes inflammation due to its overproduction. Therefore, the regulation of elevated NO levels by stimulators such as LPS has been widely used as a screening method for identifying anti-inflammatory drugs. Since NO is oxidized to nitrites and nitrates, the determination of total NO 2 - /NO 3 - is a conventional means of determining NO levels, and Griess reagents are commonly used in such experiments.
  • the compounds of the present invention can modulate LPS-induced NO levels.
  • the compounds of the invention have an inhibitory effect on LPS-induced NO levels.
  • the compound of the present invention can modulate the anti-inflammatory effects indicated by PGE2 and NO.
  • the compound of the present invention can treat an inflammation or inflammation-related disease.
  • the synthesis method is mild, the operation is simple and easy, the yield is high, and the derivatization is easy, and it is suitable for industrial scale production.
  • the compound of the present invention has very good drug-forming properties (e.g., solubility, bioavailability, etc.).
  • the compound of the present invention can increase water solubility and bioavailability, and in addition, an increase in solubility makes preparation of a dosage form easier.
  • the compound of the formula I of the present invention may be used singly or in combination with a compound of the formula II for the treatment of an inflammatory or inflammation-related disease and modulating the anti-inflammatory effects indicated by PGE2 and NO.
  • FIG. Figure 2 shows the synthetic scheme for the synthesis of UTLOH-4a, -4b and -4c.
  • the same UTLOH compound was synthesized using the same procedure using the corresponding bis-methoxyaniline or tris-methoxyaniline instead of anisidine.
  • the hot plate method stimulates mice with a certain intensity of warmth to cause a pain response. This experiment was to observe the analgesic effect of the UTLOH series of compounds.
  • mice Female SPF Kunming mice (18-22g/mouse) were placed in a hot plate instrument at a temperature of 55 ⁇ 0.5°C. The pain threshold of the mice was measured, measured twice, and measured every 5 minutes. The hind foot is used as an indicator of observation. Mice with a pain response within 30 s were selected as experimental animals. Pre-selected mice were randomly divided into groups according to body weight. The blank group was intraperitoneally injected with 0.2 ml/10 g body weight of normal saline, and the other groups were intraperitoneally injected with the corresponding drugs. The pain threshold was measured 30 and 60 min after the administration. If the mice had no painful response within 60 s, they were immediately taken out and counted for 60 s.
  • mice 100 KM mice, SPF grade, male and female (18-22 g / only), were randomly divided into groups according to body weight. Except for the blank control group, 0.5% CMC-Na suspension was intragastrically administered, and the other groups were given the corresponding drugs by intragastric administration for 3 days, once a day, and the intragastric volume was 0.2 ml/10 g. Thirty minutes after the administration on the third day, each group of mice was intraperitoneally injected with 0.6% glacial acetic acid, 0.1 ml/10 g, resulting in a mouse writhing reaction model. The number of writhings of each group of mice within 15 min after 5 min of glacial acetic acid injection was observed and the inhibition rate was calculated.
  • xylene to the ear of mice can cause acute inflammatory swelling in the auricle of the mouse, and the anti-inflammatory effect of the test drug can be observed by the degree of swelling of the ear of the mouse after inflammation.
  • mice SPF grade, male and female (18-22g / only) randomly divided into groups according to body weight.
  • the normal control group was given a 0.5% CMC-Na suspension by intragastric administration, and the other groups were given the corresponding drugs (0.2 ml/10 g) for 3 days, once a day.
  • 0.02 ml of xylene was applied to the right auricle of each group of mice, and the left side was not coated as a control, resulting in a mouse ear swelling model.
  • 20 min after the inflammation the mice were sacrificed by cervical dislocation, and the ears were cut along the baseline of the auricle. The discs of the same part of the left and right ears were punched with a puncher (diameter 6 mm) and weighed.
  • SPF grade SD rats male and female (100-120 g / only) were randomly divided into groups according to body weight. Each group was given the corresponding drug by intragastric administration, once a day for 3 days, and continuously administered by intragastric administration for 3 days, and the intragastric volume was 1 ml/100 g. Before the experiment, the ankle joints of the right hind paw of each group were marked. The foot volume of each group was measured twice by the rat foot volume meter, and the average value of the two was taken as the volume of the proinflammatory foot.
  • the rats in each group were injected subcutaneously into the right hind paw and injected with 10% fresh egg white solution 0.1 ml/inflammation, resulting in a model of paw swelling in rats.
  • the paw volume after inflammation in rats was measured twice at 1 h, 2 h, 3 h and 4 h after inflammation, and the average value of the two was taken as the volume of the post-inflammatory foot.
  • the normal group was intragastrically administered with a 1 ml/100 g volume of 0.5% CMC-Na solution.
  • the degree of paw swelling in the leflunomide group was significantly reduced at 1 h and 2 h compared with the normal group.
  • the low, medium and high dose groups of UTLOH-4a showed a significant decrease in foot swelling at 1 h after inflammation.
  • the swelling degree of the foot was significantly decreased 1 h after the inflammation, and the swelling degree of the foot was significantly decreased at 1 h, 2 h, and 3 h after the inflammation in the middle dose group and the high dose group.
  • Potassium oxonate can directly increase blood uric acid levels in animals.
  • the uric acid-lowering effect of UTLOH series drugs was observed by intraperitoneal injection of potassium oxonate.
  • mice SPF grade KM mice, half male and half female (18-22 g/only). Animals were adaptively fed for 3 days and randomized by body weight. It was administered once a day for 7 days with continuous intragastric administration. On the 7th day, the mice were intraperitoneally injected with a dose of 300 mg/kg of potassium hydroxamate 1 hour before the intragastric administration. After the administration, the eyeballs were taken and blood was taken, and the serum was separated for testing. After the decapitation was sacrificed, the liver was taken, weighed, cut, and added to physiological saline, homogenized, and centrifuged. Blood uric acid (UA) levels in each group of mice were determined according to the kit instructions; the activity of xanthine oxidase (XOD) in mouse liver homogenate supernatant was determined.
  • U blood uric acid
  • Intraperitoneal injection of oxonate potassium salt can increase the activity of xanthine oxidase (XOD) in the liver of mice.
  • XOD xanthine oxidase
  • SPF grade SD rats male and female (200-220g / only). Randomly grouped by weight. It was administered once a day for 3 days with continuous intragastric administration. After the first day of administration on the third day, it was slightly improved according to the classical method such as Coderre, that is, the inside of the tibial tendon was inserted into the dorsal side of the right ankle joint of the right rat with a 1 ml injection needle, and the concentration was 2.5 g/100 ml sodium urate. 0.2 ml of the solution was injected into the ankle joint cavity, resulting in a model of acute gouty arthritis. The normal group of rats was injected with an equal volume of sterile saline on the dorsal side of the right ankle. After the model was established, the drug was administered once a day for 3 consecutive days. The rats in each group were tested for ankle joint and foot volume before modeling, 2 h, 4 h, 8 h, 24 h and 48 h after modeling.

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Abstract

化合物及其在治疗炎症或炎症相关疾病方面的应用，具体地，合成了一系列的UTLOH化合物，所述的化合物既可有效抑制LPS诱导的PGE2和NO水平，又可有效治疗炎症或炎症相关疾病。

Description

新化合物及其在治疗炎症或炎症相关疾病方面的应用 技术领域
本发明涉及药物化学领域，具体地，涉及新化合物及其在治疗炎症相关疾病方面的应用。
背景技术
炎症是免疫系统对感染和损伤的反应。许多疾病或健康问题的发病机制都涉及炎症。这些包括类风湿性关节炎、骨关节炎、牛皮癣关节炎、反应性关节炎、强直性脊柱炎、痛风性关节炎、发烧、炎症和组织损伤引起的轻度至中度的疼痛、腰痛、肘部发炎、头痛、偏头痛、急性痛风、月经痛、转移性骨痛、术后疼痛、肌肉僵硬、帕金森病引起的疼痛和黄斑水肿。目前有许多抗炎药物可用；一个具体的例子是来氟米特。
来氟米特是一种抗炎剂；它在欧洲和美国被批准用于治疗类风湿性关节炎和炎症相关疾病。但是，它与许多不良反应有关。
因此，本领域迫切需要开发一种能够治疗炎症或其相关疾病的疗效好、副作用小、合成方法简单的新化合物。
发明内容
本发明的目的在于提供一种能够治疗炎症或其相关疾病的疗效好、副作用小、合成方法简单的新化合物。
本发明第一方面提供了一种式I化合物、或其盐、或其光学异构体、或其外消旋体、或其溶剂化物、或其前体，
Figure PCTCN2018100503-appb-000001
式中，各个R独立地选自下组：-OH、-OCH 3、-OCH 2CH 3；
m为1、或2或3的整数。
在另一优选例中，所述R为-OCH 3、-OCH 2CH 3时，m为1。
在另一优选例中，当R为-OCH 3时，m为2。
在另一优选例中，各个R可以相同，也可以不同。
在另一优选例中，R各自独立地选自下组：-OH。
在另一优选例中，R至少包括2个羟基。
在另一优选例中，m还包括4或5的整数。
在另一优选例中，当R为-OCH 3时，m还包括4或5。
在另一优选例中，m为2。
在另一优选例中，所述化合物选自下组:
Figure PCTCN2018100503-appb-000002
本发明第二方面提供了一种药物组合物，包括：
(i)本发明第一方面所述的式I化合物、或其盐、或其光学异构体、或其外消旋体、或其溶剂化物、或其前体；和
(ii)药学上可接受的载体；
其中式I化合物的定义如本发明第一方面所述。
在另一优选例中，所述药物组合物中，含有0.0001-99wt％(较佳地0.01-90wt％，更佳地，0.1-80wt％)的组分(i)，以药物组合物的总重量计。
本发明第三方面提供了一种药物组合物，包括：
(i)第一活性成分，所述第一活性成分为式II化合物，
Figure PCTCN2018100503-appb-000003
和
(ii)药学上可接受的载体。
在另一优选例中，所述式II化合物选自下组：
Figure PCTCN2018100503-appb-000004
在另一优选例中，所述药物组合物中，含有0.0001-99wt％(较佳地0.01-90wt％，更佳地，0.1-80wt％)的组分(i)，以药物组合物的总重量计。
在另一优选例中，所述药物组合物还包括第二活性成分，所述第二活性成分为本发明第一方面所述的式I化合物、或其盐、或其光学异构体、或其外消旋体、或其溶剂化物、或其前体；其中式I化合物的定义如本发明第一方面所述。
在另一优选例中，所述第一活性成分和第二活性成分的重量比为1:100至100：1，较佳地为1:10至10：1。
在另一优选例中，所述药物组合物中，含有0.0001-99wt％(较佳地0.01-90wt％，更佳地，0.1-80wt％)的组分(i)，以药物组合物的总重量计。
在另一优选例中，所述药物组合物中，含有0.0001-99wt％(较佳地0.01-90wt％，更佳地，0.1-80wt％)的所述第二活性成分，以药物组合物的总重量计。
在另一优选例中，所述药物组合物中可以是单一化合物，也可以是多个化合物的混合物。
在另一优选例中，所述的药物组合物用于制备治疗炎症或炎症相关疾病的药物或制剂。
在另一优选例中，所述药物组合物用于制备治疗痛风或痛风相关疾病的药物或制剂。
在另一优选例中，所述药物组合物用于制备镇痛或镇痛相关疾病的药物或制剂。
在另一优选例中，所述痛风或痛风相关疾病选自下组：急性特征性关节炎、 慢性痛风石疾病、急性发作性关节炎、痛风石形成、痛风石性慢性关节炎、尿酸盐肾病、尿酸性尿路结石、或其组合。
在另一优选例中，所述痛风指急性特征性关节炎和慢性痛风石疾病。
在另一优选例中，所述痛风包括急性发作性关节炎、痛风石形成、痛风石性慢性关节炎、尿酸盐肾病和尿酸性尿路结石。
在另一优选例中，所述镇痛指对急慢性疼痛等的治疗。
在另一优选例中，所述镇痛指对急性疼痛的治疗，包括：软组织及关节急性损伤疼痛、手术后疼痛、产科疼痛、急性带状疱疹疼痛、和/或痛风。
在另一优选例中，所述镇痛指对慢性疼痛的治疗，包括：软组织及关节劳损性或退变疼痛、椎间盘源性疼痛、和/或神经源性疼痛。
在另一优选例中，所述镇痛指对顽固性疼痛的治疗，包括：三叉神经痛、疱疹后遗神经痛、和/或椎间盘突出症。
在另一优选例中，所述镇痛指对癌性疼痛的治疗，包括：晚期肿瘤痛、和/或肿瘤转移痛。
在另一优选例中，所述镇痛指对特殊疼痛类的治疗，包括：血栓性脉管炎、顽固性心绞痛、和/或特发性胸腹痛。
在另一优选例中，所述药物组合物用于制备LPS诱导的PGE2和NO的选择性调节剂。
在另一优选例中，所述炎症或炎症相关疾病选自下组：类风湿性关节炎、骨关节炎、牛皮癣关节炎、反应性关节炎、强直性脊柱炎、痛风性关节炎、发烧、炎症和组织损伤引起的轻度至中度的疼痛、腰痛、肘部发炎、头痛、偏头痛、急性痛风、月经痛、转移性骨痛、术后疼痛、肌肉僵硬、帕金森病引起的疼痛和黄斑水肿、或其组合。
在另一优选例中，所述药物组合物还包括额外的治疗炎症或炎症相关疾病的药物。
在另一优选例中，所述额外的治疗炎症或炎症相关疾病的药物选自下组：地塞米松、布洛芬、来氟米特、特立氟铵、丙二腈酰胺、双氯芬酸钠、双氯芬酸钾，萘普生、萘普生钠、或其组合。
本发明第四方面提供了一种本发明第一方面所述的式I化合物、或其盐、或其光学异构体、或其外消旋体、或其溶剂化物、或其前体、或本发明第二方面所述 或本发明第三方面所述的药物组合物的用途，用于制备药物或制剂，所述药物或制剂用于(i)治疗炎症或炎症相关疾病；和/或(ii)调节LPS诱导的PGE2和NO的水平。
在另一优选例中，所述药物或制剂还用于(iii)治疗痛风；和/或(iv)镇痛。
在另一优选例中，所述调节LPS诱导的PGE2和NO的水平为抑制PGE2和NO的水平。
在另一优选例中，所述炎症或炎症相关疾病选自下组：类风湿性关节炎、骨关节炎、牛皮癣关节炎、反应性关节炎、强直性脊柱炎、痛风性关节炎、发烧、炎症和组织损伤引起的轻度至中度的疼痛、腰痛、肘部发炎、头痛、偏头痛、急性痛风、月经痛、转移性骨痛、术后疼痛、肌肉僵硬、帕金森病引起的疼痛和黄斑水肿、或其组合。
在另一优选例中，所述痛风包括急性特征性关节炎和/或慢性痛风石疾病。
在另一优选例中，所述痛风包括急性发作性关节炎、痛风石形成、痛风石性慢性关节炎、尿酸盐肾病、和/或尿酸性尿路结石。
在另一优选例中，所述镇痛指对急慢性疼痛等的治疗。
在另一优选例中，所述镇痛指对急性疼痛的治疗，包括：软组织及关节急性损伤疼痛、手术后疼痛、产科疼痛、急性带状疱疹疼痛、和/或痛风。
在另一优选例中，所述镇痛指对慢性疼痛的治疗，包括：软组织及关节劳损性或退变疼痛、椎间盘源性疼痛、和/或神经源性疼痛。
在另一优选例中，所述镇痛指对顽固性疼痛的治疗，包括：三叉神经痛、疱疹后遗神经痛、和/或椎间盘突出症。
在另一优选例中，所述镇痛指对癌性疼痛的治疗，包括：晚期肿瘤痛、和/或肿瘤转移痛。
在另一优选例中，所述镇痛指对特殊疼痛类的治疗，包括：血栓性脉管炎、顽固性心绞痛、和/或特发性胸腹痛。
本发明第五方面提供了一种式I化合物或其盐的制法，包括步骤：
(a)在惰性溶剂中，将化合物I-2与化合物I-A1进行反应，从而形成式I化合物；
Figure PCTCN2018100503-appb-000005
上述各式中，R和m的定义如本发明第一方面中所述。
在另一优选例中，所述惰性溶剂选自下组：二氯甲烷(DCM)、氯仿(chloroform),苯(benzene)、或其组合。
在另一优选例中，所述反应在缚酸剂存在下进行。
在另一优选例中，所述缚酸剂选自下组：碳酸钾(K 2CO 3)、三乙胺(Et 3N)、吡啶(Py)、或其组合。
在另一优选例中，步骤(a)中，所述反应温度为0－150℃(或回流温度)，较佳地，10－80℃，更佳地，20－60℃。
在另一优选例中，步骤(a)中，所述反应时间为0.1-12小时，更佳地，0.2－5小时，更佳地，0.4－3小时。
在另一优选例中，式I-A1中，R为甲氧基。
在另一优选例中，所述式I-2化合物由如下方法制备：
(i)在惰性溶剂中，将化合物I-1与SOCl 2反应，从而形成化合物I-2；
Figure PCTCN2018100503-appb-000006
在另一优选例中，所述惰性溶剂选自下组：二氯甲烷(DCM)、氯仿(chloroform),苯(benzene)、或其组合。
在另一优选例中，步骤(a)中，所述反应温度为0－150℃(或回流温度)，较佳地，10－80℃，更佳地，20－60℃。
在另一优选例中，步骤(a)中，所述反应时间为0.1-12小时，更佳地，0.2－5小时，更佳地，0.4－3小时。
在另一优选例中，所述方法还包括去甲基化的步骤。
在另一优选例中，所述去甲基化在惰性溶剂存在下进行。
在另一优选例中，所述惰性溶剂选自下组：二氯甲烷(dichloromethane),氯仿(chloroform)、苯(benzene)、或其组合。
本发明第六方面提供了一种体外抑制LPS诱导的PGE2和NO的方法，包括步骤：
在LPS的存在下，将式I化合物或式II化合物或本发明第二方面所述的药物组合物与哺乳动物细胞接触，从而使得所述式I化合物或式II化合物抑制LPS诱导的PGE2和NO的水平，其中式I化合物的定义如本发明第一方面所述，所述式II化合物为
Figure PCTCN2018100503-appb-000007
在另一优选例中，所述式II化合物选自下组：
Figure PCTCN2018100503-appb-000008
在另一优选例中，所述哺乳动物细胞包括人或非人哺乳动物细胞。
在另一优选例中，所述非人哺乳动物包括：啮齿动物(如小鼠、大鼠、兔)、灵长类动物(如猴)。
在另一优选例中，所述细胞选包括RAW 264.7细胞。
在另一优选例中，所述方法为非治疗性和非诊断性的。
本发明第七方面提供了一种治疗炎症或炎症相关疾病的方法，包括：
向所需对象施用本发明第一方面所述的式I化合物或本发明第二方面或本发明第三方面所述的药物组合物。
在另一优选例中，所述对象包括人或非人哺乳动物。
在另一优选例中，所述非人哺乳动物包括：啮齿动物(如小鼠、大鼠、兔)、灵长类动物(如猴)。
在另一优选例中，施用剂量为0.01-1000mg/kg/天，较佳地，0.1-100mg/kg/天，更佳地，1-50mg/kg/天。
在另一优选例中，施用频率为1-3次/天，较佳地，1-2次/天。
在另一优选例中，所述使用频率为每日约0.001至约1000毫克/公斤体重，优选地，每日约1.0至约30毫克/千克体重。
在另一优选例中，施用包括一个或多个周期，各周期为1-7天，较佳地， 2-5天。
应理解，在本发明范围内中，本发明的上述各技术特征和在下文(如实施例)中具体描述的各技术特征之间都可以互相组合，从而构成新的或优选的技术方案。限于篇幅，在此不再一一累述。
附图说明
图1显示了本发明的式I化合物的代表性的合成方案。简言之，在步骤1中，将起始物质5-甲基异恶唑-3-羧酸(I-1)与SOCl 2反应，从而制备化合物I-2。步骤2是通过化合物I-2与化合物I-A反应，从而制备化合物I-3。步骤3是对化合物I-3进行去甲基化，从而制备本发明的式I化合物。
图2显示了UTLOH化合物(即，UTLOH-4a、-4b和-4c)的代表性的合成方案。简言之，在步骤1中，将起始物质5-甲基异恶唑-3-羧酸(I-1)与SOCl 2反应，从而制备化合物I-2。步骤2是通过化合物I-2与相应的茴香胺(如邻-、间-、或对-茴香胺)反应，从而制备化合物3a、3b或3c。步骤3是对化合物3a、3b或3c进行去甲基化，从而制备UTLOH-4a、-4b或-4c。
具体实施方式
本发明人经过长期而深入的研究，合成了一系列的UTLOH化合物，本发明所述的化合物既可有效抑制LPS诱导的PGE2和NO水平，又可有效治疗炎症或炎症相关疾病、治疗痛风、和/或镇痛。在此基础上，本发明人完成了本发明。
本发明的化合物可以含有一个或多个不对称中心，并因此以消旋体、外消旋混合物、单一对映体、非对映异构体化合物和单一非对映体的形式出现。可以存在的不对称中心，取决于分子上各种取代基的性质。每个这种不对称中心将独立地产生两个旋光异构体，并且所有可能的旋光异构体和非对映体混合物和纯或部分纯的化合物包括在本发明的范围之内。本发明包括化合物的所有异构形式。
本文中，术语“室温”指4-40℃，优选为20-25℃。
本发明化合物
如本文所用，“本发明化合物”、“式I化合物”可互换使用，均指具有式I所示结构的化合物。此外，所述术语还包括式I化合物的盐、光学异构体、外消旋体、溶剂化物(如水合物)、和/或前体，
Figure PCTCN2018100503-appb-000009
其中，R和m的定义如前所述。
下面更具体地描述本发明式I化合物的制备方法，但这些具体方法不对本发明构成任何限制。本发明化合物还可以任选将在本说明书中描述的或本领域已知的各种合成方法组合起来而方便的制得，这样的组合可由本发明所属领域的技术人员容易的进行。通常，在本发明的制备方法中，各反应大多在惰性溶剂中，在0℃至150℃(或回流温度)(较佳地，10-60℃，或20－40℃)下，反应一段时间(如0.1-72小时，较佳地2－20小时)。
如本文所用，室温是指4-35℃，优选20-30℃。
较佳地，本发明式I化合物可以通过以下方案及实施例中所述的示例性方法以及本领域技术人员所用的相关公开文献操作完成。
典型地，本发明的式I化合物的制备方法可包括(但不限于)如下流程。
方案I(以R为OH，m＝1为例)
方案如图1所示。具体的方案如下：
(1)制备化合物I-2
Figure PCTCN2018100503-appb-000010
在步骤1中，在惰性溶剂(如二氯甲烷)中，首先将I-1化合物(如5-甲基异恶唑-3-羧酸)与SOCl 2回流约1-8小时(较佳地2-4小时)，在真空中去除额外的SOCl 2，从而形成式I-2化合物。
(2)制备化合物I-3
Figure PCTCN2018100503-appb-000011
在步骤2中，在惰性溶剂(如二氯甲烷)中，化合物I-2溶解在二氯甲烷中，缓慢加入化合物I-A(如茴香胺)，在室温下进行反应S，加入合适量的三乙胺，促进反应的进行。反应进行约0.1小时－4小时(较佳地0.2小时－3小时)，在真空中去除二氯甲烷，形成式I-3化合物。
(3)制备式I化合物
Figure PCTCN2018100503-appb-000012
在步骤3中，在惰性溶剂(如二氯甲烷)中，向化合物I-3中加入EtSH和AlCl 3进行去甲基化，从而制备式I化合物。
药物组合物
本发明还提供了一种药物组合物，所述药物组合物包括(a)有效量的式I化合物、或其盐、或其光学异构体、或其外消旋体、或其溶剂化物、或其前体和(b)药学上可接受的载体。
在一优选实施方式中，所述药物组合物包括(i)式II化合物，所述式II化合物为
Figure PCTCN2018100503-appb-000013
和(ii)药学上可接受的载体。
在一优选实施方式中，所述药物组合物还可以包括(iii)有效量的式I化合物、或其盐、或其光学异构体、或其外消旋体、或其溶剂化物、或其前体。
在一优选实施方式中，所述式II化合物选自下组：
Figure PCTCN2018100503-appb-000014
本发明所述的“活性成分”是指本发明所述式I化合物、或其盐、或其光学异构体、或其外消旋体、或其溶剂化物、或其前体；或式II化合物。
本发明所述的“活性成分”和药物组合物可用于制备(i)治疗炎症或炎症相关疾病；和/或(ii)调节LPS诱导的PGE2和NO的水平；和/或(iii)治疗痛风；和/或(iv)镇痛的药物。
在另一优选例中，所述疾病选自下组：类风湿性关节炎、骨关节炎、牛皮癣关节炎、反应性关节炎、强直性脊柱炎、痛风性关节炎、发烧、炎症和组织损伤引起的轻度至中度的疼痛、腰痛、肘部发炎、头痛、偏头痛、急性痛风、月经痛、转移性骨痛、术后疼痛、肌肉僵硬、帕金森病引起的疼痛和黄斑水肿、急性发作性关节炎、痛风石形成、痛风石性慢性关节炎、尿酸盐肾病、尿酸性尿路结石、软组织及关节急性损伤疼痛、手术后疼痛、产科疼痛、急性带状疱疹疼痛、软组织及关节劳损性或退变疼痛、椎间盘源性疼痛、神经源性疼痛、三叉神经痛、疱疹后遗神经痛、椎间盘突出症、晚期肿瘤痛、肿瘤转移痛、血栓性脉管炎、顽固性心绞痛、特发性胸腹痛、或其组合。
“安全有效量”指的是：活性成分的量足以明显改善病情，而不至于产生严重的副作用。通常，药物组合物含有1-2000mg活性成分/剂，更佳地，含有10-200mg活性成分/剂。较佳地，所述的“一剂”为一个药片。
“药学上可接受的载体”指的是：一种或多种相容性固体或液体填料或凝胶物质，它们适合于人使用，而且必须有足够的纯度和足够低的毒性。“相容性”在此指的是组合物中各组份能和本发明的活性成分以及它们之间相互掺和，而不明显降低活性成分的药效。
本发明优选实施例的化合物可以作为单独活性药剂给药，也可以与一个或多个其它用于治疗炎症或炎症相关疾病的试剂组合使用。本发明优选实施例的化合物与已知的治疗剂组合使用也是有效的，目前已知的化合物和其它治疗炎症或炎症相关疾病的治疗剂的组合在优选实施例范围之内。基于药物的特殊性质和所涉及的疾病，本领域普通技术人员能够辨别有效的药剂组合。这种治疗 炎症或炎症相关疾病的治疗剂包括(但不限于)如下：地塞米松、布洛芬、来氟米特、特立氟铵、丙二腈酰胺、双氯芬酸钠、双氯芬酸钾，萘普生、萘普生钠等。优选实施例的化合物与治疗炎症或炎症相关疾病的治疗剂同时施用时也有效。
本发明的药物组合物可有利地以可注射组合物的形式施用，或者作为液体溶液剂或混悬剂施用。额外的组合物适合于口服(比如，具有肠溶衣的片剂)。口服药物组合物包括典型的赋形剂，例如药物级甘露醇、乳糖、淀粉、硬脂酸镁、糖精钠、纤维素、碳酸镁等。药物组合物采取溶液剂、混悬剂、片剂、丸剂、胶囊剂、缓释成分或粉剂的剂型。当局部施用时，可以是面霜、油膏、药膏或喷雾剂的剂型。
通常，优选实施例的化合物将以治疗有效量、通过具有类似作用的药剂的任意一种可接受的模式施用。优选实施例的化合物(即活性成分)的实际用量根据多个因素确定，如待治疗疾病的严重程度、患者的年龄和相对健康程度、被使用化合物的效力、施用的路径和形式，以及其他因素。该药物可一天施用多次，优选地，每天一次或两次。所有这些因素都在主治医生的考虑范围内。
在本发明中，治疗有效剂量通常可以是对患者一次性施用或分次施用的每日总剂量，例如，每日约0.01至约1000毫克/公斤体重，优选地，每日约0.1至约100毫克/千克体重,更佳地，1-50毫克/千克体重。单位剂量组合物(Dosage unit composition)可包含其剂量因数以形成每日剂量。剂型的选择取决于各种因素，例如给药模式和药物物质的生物利用度。通常，优选实施例的化合物可作为药物组合物通过以下任意一种路线给药：口服、全身给药(如透皮、鼻内或通过栓剂)、或肠外给药(如肌内、静脉内或皮下)。优选的给药方式为口服，可根据苦的程度调节方便的日剂量。组合物可采取的形式为片剂、丸剂、胶囊、半固体、粉剂、缓释制剂、溶液、悬浮液、酏剂、气雾剂或任何其他适当的组合物。另一种优选的施用优选实施例化合物的方式为吸入。这是一种将治疗剂直接运送给呼吸道的有效方法(参见，如美国专利号5,607,915)。
合适的药学上可接受的载体或赋形剂包括：如处理剂和药物运送改性剂和促进剂，诸如磷酸钙、硬脂酸镁、滑石、单糖、二糖、淀粉、明胶、纤维素、甲基纤维素钠、羧甲基纤维素、葡萄糖、羟丙基-B-环糊精、聚乙烯吡咯烷酮、低熔点蜡、离子交换树脂等，及其任意两种或多种的组合。液体和半固体的赋形剂可以选自甘油、丙二醇、水、乙醇和各种油，包括石油、动物油、植物油 或合成来源，如花生油、豆油、矿物油、芝麻油等。优选的液体载体，特别是用于可注射溶液的载体，包括水、盐水、葡萄糖水性溶液和乙二醇。其它适宜的药学上可接受的赋形剂在《雷明顿药物科学》(Remington’s Pharmaceutical Sciences),Mack Pub.Co.,新泽西(1991)有描述，通过引用纳入本文。
如本文所用，术语“药学上可接受的盐”是指通式I化合物的非毒性酸或碱土金属盐。这些盐可在最终分离和纯化通式I化合物时原位制得、或分别将合适的有机或无机酸或碱与碱性或酸性官能团反应制得。代表性的盐包括，但不限于：乙酸盐、己二酸盐、藻酸盐、柠檬酸盐、天冬氨酸盐、苯甲酸盐、苯磺酸盐、硫酸氢盐、丁酸盐、樟脑酸盐、樟脑磺酸盐、二葡糖酸盐、环戊烷丙酸盐、十二烷基硫酸盐、乙磺酸盐、葡萄糖庚酸盐、甘油磷酸盐、半硫酸盐、庚酸盐、己酸盐、富马酸盐、盐酸盐、氢溴酸盐、氢碘酸盐、2-羟基乙磺酸盐、乳酸盐、马来酸盐、甲磺酸盐、烟酸盐、2-萘基磺酸盐、草酸盐、双羟萘酸盐、果胶酸盐、硫氰酸盐、3-苯基丙酸盐、苦味酸盐、新戊酸盐、丙酸盐、琥珀酸盐、硫酸盐、酒石酸盐、硫氰酸盐、对甲苯磺酸盐和十一烷酸盐。此外，含氮的碱性基团可被如下试剂季铵盐化：烷基卤化物，如甲基、乙基、丙基、丁基的氯化物、溴化物和碘化物；二烷基硫酸盐，如二甲基、二乙基、二丁基和二戊基硫酸酯；长链卤化物如癸基、月桂基、肉豆蔻基和硬脂基的氯化物、溴化物和碘化物；芳烷基卤化物如苄基和苯乙基溴化物等。由此得到水溶性或油溶性或可分散产品。可被用于形成药学上可接受的酸加成盐的酸的例子包括如盐酸、硫酸、磷酸的无机酸，和如草酸、马来酸、甲磺酸、琥珀酸、柠檬酸的有机酸。碱加成盐可在最终分离和纯化通式I的化合物时原位制得、或使羧酸部分分别与合适的碱(如药学上可接受的金属阳离子的氢氧化物，碳酸盐或碳酸氢盐)或氨、或有机伯、仲或叔胺反应制得。药学上可接受的盐包括，但不限于，基于碱金属和碱土金属的阳离子，如钠、锂、钾、钙、镁、铝的盐等，以及无毒的铵、季铵和胺阳离子，包括，但不限于：铵、四甲基铵、四乙基铵、甲胺、二甲胺、三甲胺、三乙胺、乙胺等。其它代表性的用于形成碱加成盐的有机胺包括二乙胺、乙二胺、乙醇胺、二乙醇胺、哌嗪等。
如本文所用，术语“药学上可接受的前药”是指那些优选实施例的化合物的前药，在体内迅速转化为上述通式所示的母体化合物的化合物，例如在血液中水解。在“T.Higuchi和V.Stella，作为新型运送系统的前药(Pro-drugs as Novel Delivery Systems)，A.C.S.15 Symposium Series的14卷”和 “Edward B.Roche编，药物设计中的生物可逆载体(Bioreversible Carriers in Drug Design)，美国药学协会和Pergamon出版社，1987年”中提供了完整的讨论，这两者都引入本文作为参考。
本发明化合物的用途
本发明还提供了所述的式I化合物的用途。
本发明还提供了含有本发明的式I化合物的药物组合物或含有本发明式II化合物或含有本发明式I化合物和式II化合物的药物组合物的用途。
在本发明的一个优选例中，所述式I化合物用于制备药物或制剂，所述药物或制剂用于(i)治疗炎症或炎症相关疾病；和/或(ii)调节LPS诱导的PGE2和NO的水平。
在本发明的一个优选例中，所述有本发明的式I化合物的药物组合物或含有本发明式I化合物和式II化合物的药物组合物用于制备药物或制剂，所述药物或制剂用于(i)治疗炎症或炎症相关疾病；和/或(ii)调节LPS诱导的PGE2和NO的水平；和/或(iii)治疗痛风；和/或(iv)镇痛。
在本发明的一个优选例中，所述疾病选自下组：类风湿性关节炎、骨关节炎、牛皮癣关节炎、反应性关节炎、强直性脊柱炎、痛风性关节炎、发烧、炎症和组织损伤引起的轻度至中度的疼痛、腰痛、肘部发炎、头痛、偏头痛、急性痛风、月经痛、转移性骨痛、术后疼痛、肌肉僵硬、帕金森病引起的疼痛和黄斑水肿、急性发作性关节炎、痛风石形成、痛风石性慢性关节炎、尿酸盐肾病、尿酸性尿路结石、软组织及关节急性损伤疼痛、手术后疼痛、产科疼痛、急性带状疱疹疼痛、软组织及关节劳损性或退变疼痛、椎间盘源性疼痛、神经源性疼痛、三叉神经痛、疱疹后遗神经痛、椎间盘突出症、晚期肿瘤痛、肿瘤转移痛、血栓性脉管炎、顽固性心绞痛、特发性胸腹痛、或其组合。
本发明的化合物具有非常好的成药性(如溶解性、生物利用度等)。
PGE2调节
前列腺素(PGs)在炎症反应的产生中起了很重要的作用。发炎组织中显著增加可它们的生物合成，这有助于急性炎症的主要征兆的发展：发红、发热、肿胀和疼痛。前列腺素E2(PGE2)是体内产生的最丰富的前列腺素(PGs)之一，并且其也是许多生物功能的重要介质。PGE2对炎症特别有兴趣，因为它涉 及导致经典炎症征兆的所有过程：发红、肿胀和疼痛。
在本发明中，本发明的化合物可调节LPS诱导的PGE2水平。
在一优选实施方式中，本发明的化合物对LPS诱导的PGE2水平有抑制作用。
NO调节
一氧化氮(NO)是一种在炎症发病机理中发挥关键作用的信号分子。在异常情况下，NO是由于其过度生产而引起炎症的促炎介质。因此，通过刺激剂(如LPS)升高的NO水平的调节已被广泛用作鉴定抗炎药的筛选方法。由于NO被氧化成亚硝酸盐和硝酸盐，总NO 2 -/NO 3 -的测定是测定NO水平的常规手段，并且Griess试剂通常用在这种实验中。
在本发明中，本发明的化合物可调节LPS诱导的NO水平。
在一优选实施方式中，本发明的化合物对LPS诱导的NO水平有抑制作用。
本发明的主要优点包括：
(1)提供一种结构新颖的通式I化合物。
(2)本发明的化合物可以调节PGE2和NO所示的抗炎效果。
(3)本发明的化合物可治疗炎症或炎症相关疾病。
(4)合成方法温和，操作简单易行，收率较高，易于衍生化，适合工业放大量生产。
(5)本发明的化合物具有非常好的成药性(如溶解性、生物利用度等)。
(6)本发明的化合物可增加水溶性和生物利用度，此外，溶解性增加使得剂型的制备更容易。
(7)本发明的式I化合物可以单用，也可以与式II化合物联用，用于治疗炎症或炎症相关疾病，并调节PGE2和NO所示的抗炎效果。
除非另行定义，文中所使用的所有专业与科学用语与本领域熟练人员所熟悉的意义相同。此外，任何与所记载内容相似或均等的方法及材料皆可应用于本发明方法中。文中所述的较佳实施方法与材料仅作示范之用。
下面结合具体实施例，进一步阐述本发明。应理解，这些实施例仅用于说 明本发明而不用于限制本发明的范围。下列实施例中未注明具体条件的实验方法，通常按照常规条件如Sambrook等人，分子克隆：实验室手册(New York:Cold Spring Harbor Laboratory Press,1989)中所述的条件，或按照制造厂商所建议的条件。除非另外说明，否则百分比和份数按重量计算。
如无特别说明，则本发明实施例所用的试剂和材料均为市售产品。
实施例1 三种UTLOH化合物的代表性的合成方案、步骤和结果
可以通过图2所示的代表性例子来说明UTLOH系列化合物的合成。图2显示了合成UTLOH-4a、-4b和-4c的合成方案。使用相应的二-甲氧基苯胺或三-甲氧基苯胺代替茴香胺，使用相同的步骤合成其它的UTLOH化合物。
合成UTLOH-4a、-4b和-4c的步骤可以在下面描述。简言之，用亚硫酰氯(10mL)将30mL二氯甲烷中的起始物质(5-甲基异恶唑-3-羧酸)(1.27g，10mmol)回流3小时。真空除去过量的亚硫酰氯，得到化合物2。向10ml二氯甲烷的化合物2中缓慢加入茴香胺(邻-、间-或对-茴香胺)(1.23g，10mmol)。随后向所述混合物中加入5ml二氯甲烷的三乙胺。然后将混合物搅拌30分钟，真空除去二氯甲烷。加入稀释的HCl，用乙酸乙酯萃取粗产物3次。合并有机层，用Na 2SO 4干燥，过滤，然后重结晶，得到化合物3a、3b或3c。
Figure PCTCN2018100503-appb-000015
向乙硫醇(1.55g，25mmol)和AlCl 3(4.99g，37.5mmol)中加入30mL二氯甲烷中的化合物3a、3b或3c(1.16g，5mmol)，并在室温下搅拌20分钟，然后倒入冰-水以沉淀粗产物。过滤后，用水洗涤沉淀物直至不含酸。将粗产物在二氯甲烷中重结晶，得到化合物UTLOH-4a、-4b或-4c。
Figure PCTCN2018100503-appb-000016
实施例2 本发明的UTLOH化合物调节LPS诱导的PGE2和NO
本实施例取自Song等人 [1]的先前出版物中。简言之，在37℃下，用递增剂量的各测试化合物处理小鼠RAW 264.7细胞1小时。此后，用20μL/孔的LPS(相当于终浓度为100ng/mL)攻击细胞。将细胞在37℃下进一步孵育过夜。使用从R&D Systems(Minneapolis，MN)获得的商业ELISA测定试剂盒测定上清液中PGE2的水平，做三次平行实验。使用设定为450nm的BioTek Epoch酶标仪(Winooski，VT)测定每个孔的光密度。以类似的方式进行NO研究，但是将Greiss试剂用作监测NO的水平，并且在550nm读取结果。结果如表1所示：
表1 对LPS诱导的PGE2和NO的抑制结果
Figure PCTCN2018100503-appb-000017
*通过添加浓度高达200μM的测试化合物，用MTT测定发现所有LPS激活的鼠RAW 264.7巨噬细胞的细胞生长没有显著影响(细胞活力≥85％)。
研究表明，与来氟米特相比，本发明的化合物(如UTLOH-4a和UTLOH-4c对PGE2的抑制更强；对LPS诱导的NO的抑制表明，本发明的化合物(如UTLOH-4a和UTLOH-4c)比来氟米特和特立氟胺(来氟米特的活性代谢物)对NO的抑制更强。
并且，用本发明的相同的实验方法对本发明的其他化合物(如，UTLOH-4d、UTLOH-4e、UTLOH-4f、UTLOH-4g、UTLOH-4h、UTLOH-4i、UTLOH-4k)进行测定，实验表明，本发明的其他化合物(如，UTLOH-4d、UTLOH-4e、UTLOH-4f、UTLOH-4g、UTLOH-4h、UTLOH-4i、UTLOH-4k)有非常好的PGE2抑制率，并且NO的IC 50在10-50μM之间，或＜10μM的范围，与UTLOH-4a、UTLOH-4b和UTLOH-4c相似。
基于这些结果，可得出如下结论：本发明的UTLOH系列化合物具有非常显著的抗炎活性。
实施例3 本发明的UTLOH化合物对小鼠热板疼痛的影响
热板法是利用一定强度的温热刺激小鼠，使之产生疼痛反应。本实验观察UTLOH系列化合物的镇痛作用。
将雌性SPF级昆明种小鼠(18—22g/只)置于热板仪内，温度55±0.5℃，测定小鼠的痛阈值，测2次，每隔5min测量1次，以小鼠舔后足作为观察指标。选出30s内有痛反应的小鼠作为实验动物。取预选合格的小鼠，按照体重随机分组。空白组腹腔注射生理盐水0.2ml/10g体重，其它组以腹腔注射相应药物。给药后30及60min测定痛阈值，若小鼠60s内无痛反应，立即取出，按60s计算。
由表2可见，化合物UTLOH-4a 100mg/kg与200mg/kg两个剂量在给药后30及60min均能显著降低小鼠热板实验的痛阈提高百分率。UTLOH-4e的25mg/kg与200mg/kg剂量组则在给药后30min显著降低小鼠的痛阈提高百分率。
表2.UTLOH系列化合物对小鼠热板实验的痛阈的影响
Figure PCTCN2018100503-appb-000018
Figure PCTCN2018100503-appb-000019
注：所有数据以均数±标准差
Figure PCTCN2018100503-appb-000020
表示。与正常组比，*P<0.05,**P<0.01。
实施例4 本发明的UTLOH化合物对冰醋酸腹腔注射致小鼠扭体反应的影响
冰醋酸注入小鼠腹腔内后，可引起炎性疼痛，致使小鼠出现扭体反应。本试验通过腹腔注射冰醋酸后小鼠扭体次数观察UTLOH系列化合物的镇痛作用。
取KM小鼠100只，SPF级，雌雄各半(18—22g/只)，按体重随机分组。除空白对照组灌胃给予0.5％CMC-Na混悬液外，其它各组灌胃给予相应的药物，连续灌胃给药3天，每天1次，灌胃体积0.2ml/10g。于第3天给药后30min后，每组小鼠均腹腔注射0.6％的冰醋酸，0.1ml/10g，造成小鼠扭体反应模型。观察注射冰醋酸后5min后的15min内各组小鼠的扭体次数并计算抑制率。
由表3可见，UTLOH-4a与UTLOH-4e四个剂量组均能显著抑制醋酸致小鼠的扭体反应。
表3.UTLOH系列化合物对小鼠醋酸扭体反应的镇痛作用
Figure PCTCN2018100503-appb-000021
Figure PCTCN2018100503-appb-000022
注：所有数据以均数±标准差
Figure PCTCN2018100503-appb-000023
表示。与正常组比，*P<0.05,**P<0.01。
实施例5 本发明的UTLOH化合物对二甲苯致小鼠耳肿胀的影响
二甲苯涂抹于小鼠耳可引起小鼠耳廓急性炎性肿涨，通过致炎后小鼠耳廓肿胀程度观察受试药物的抗炎作用。
取昆明种小鼠，SPF级，雌雄各半(18—22g/只)按体重随机分组。正常对照组灌胃给予0.5％CMC-Na混悬液外，其它各组给予相应的药物(0.2ml/10g)，连续给药3天，每天1次。末次给药0.5h后，将0.02ml二甲苯 涂在各组小鼠的右侧耳廓上，左侧不涂作为对照，造成小鼠耳肿胀模型。致炎后20min，用颈椎脱臼的方法处死小鼠，沿耳廓基线剪下双耳，用打孔器(直径6mm)打下左右两侧耳同一部位的圆片，称重。
如表4所示，UTLOH-4a及-4e的三个剂量组对小鼠的耳肿胀率较正常组明显降低。且UTLOH-4e呈现出较好的剂量依赖性，剂量越高，小鼠的耳肿胀率越低。
表4.UTLOH系列化合物对二甲苯致耳肿胀小鼠的作用
Figure PCTCN2018100503-appb-000024
Figure PCTCN2018100503-appb-000025
注：所有数据以均数±标准差
Figure PCTCN2018100503-appb-000026
表示。与正常组比，*P<0.05,**P<0.01。
实施例6 本发明的UTLOH化合物对鸡蛋清致大鼠足爪肿胀的影响
10％浓度鸡蛋清注入大鼠足爪，可引起大鼠足爪呈红、热、肿、痛等早期急性炎症表现。本实验通过致炎后大鼠足爪肿胀程度观察UTLOH系列化合物的抗炎作用。
SPF级SD大鼠，雌雄各半(100-120g/只)按体重随机分组。各组灌胃给予相应的药物，每天给药1次，连续灌胃给药3d，灌胃体积1ml/100g。实验前在各组大鼠右后足的踝关节处作标记，用大鼠足容积测定仪测定各组大鼠足容积两次，取两次的平均值作为致炎前足容积。末次给药后30min，各组大鼠右后足爪皮下进针，注射10％新鲜蛋清溶液0.1ml/只致炎，造成大鼠足爪肿胀模型。分别于致炎后1h、2h、3h及4h测定大鼠致炎后的足容积两次，取两次的平均值作为致炎后足容积。正常组按体重灌胃给予1ml/100g体 积的0.5％CMC-Na溶液。
如表5所示，与正常组比较，来氟米特组大鼠的足肿胀程度在1h、2h时显著降低。UTLOH-4a低、中、高剂量组在致炎后1h足肿胀度显著降低。UTLOH-4e低剂量组在致炎后1h足肿胀度显著降低，中剂量组及高剂量组在致炎后1h、2h、3h时足肿胀度显著降低。
表5.UTLOH系列化合物对10％鸡蛋清致足肿胀大鼠的作用(
Figure PCTCN2018100503-appb-000027
n＝10)
Figure PCTCN2018100503-appb-000028
注：所有数据以均数±标准差表示。与正常组比较，*P<0.05,**P<0.01.a:UTLOH-4a,e:UTLOH-4e。
实施例7 本发明的UTLOH化合物对氧嗪酸钾盐诱导的高尿酸血症模型小鼠的影响
氧嗪酸钾盐可直接升高动物血尿酸水平。本实验利用腹腔注射氧嗪酸钾盐观察UTLOH系列药物的降尿酸作用。
SPF级KM小鼠，雌雄各半(18—22g/只)。动物适应性喂养3d后，按体重随机分组。每日给药一次，连续灌胃给药7天。第7天，灌胃给药前1小时用氧臻酸钾盐300mg/kg剂量给小鼠腹腔注射。给药后摘眼球取血，分离血清待测。后断头处死，取肝脏、称重、剪碎,加入生理盐水，匀浆、离心。按照试剂盒说明书操作，测定各组小鼠中血尿酸(UA)水平；测定小鼠肝匀浆上清液黄嘌呤氧化酶(XOD)活性。
如表6-1所示，小鼠腹腔注射300mg/kg氧嗪酸钾盐可造成急性高尿酸血症，与正常组比较，模型组小鼠血清中尿酸显著升高。而UTLOH-4e能显著降低模型小鼠血清中尿酸水平。
氧嗪酸钾盐腹腔注射可造成小鼠肝脏中黄嘌呤氧化酶(XOD)活性升高，如表6-2所示，与正常组比较，模型组小鼠肝脏XOD活性显著升高。而UTLOH-4e能显著降低模型小鼠肝脏XOD活性。
表6-1 UTLOH系列化合物对OA诱导的高尿酸血症模型小鼠血清UA水平的影响
Figure PCTCN2018100503-appb-000029
Figure PCTCN2018100503-appb-000030
注：所有数据以均数±标准差表示。与正常组比较， #P<0.05, ##P<0.01.与模型组比较，*P<0.05,**P<0.01。
表6-2.UTLOH系列化合物对OA诱导的高尿酸血症模型小鼠肝脏XOD活性的影响
Figure PCTCN2018100503-appb-000031
Figure PCTCN2018100503-appb-000032
注：所有数据以均数±标准差表示。与正常组比较， #P<0.05, ##P<0.01。与模型组比较，*P<0.05,**P<0.01。表中XOD按下述公式计算：
Figure PCTCN2018100503-appb-000033
实施例8 本发明的UTLOH化合物对尿酸钠晶体致大鼠急性痛风性关节炎的影响
将尿酸钠晶体注入关节腔造成急性痛风性关节炎模型,其病理表现与临床表现极为相似，是目前研究痛风性关节炎动物实验普遍采用的经典方法。本实验将探讨UTLOH系列药物对尿酸钠诱导的急性痛风性关节炎动物的作用。
SPF级SD大鼠，雌雄各半(200—220g/只)。按体重随机分组。每日给药一次，连续灌胃给药3天。第三天给药1h后，按Coderre等经典方法略作改进，即用1ml注射针在受试大鼠右侧踝关节背侧45度方向插入胫骨肌腱内侧，将浓度为2.5g/100ml尿酸钠溶液0.2ml注入踝关节腔，造成急性痛风性关节炎病变模型。正常组大鼠右侧踝关节背侧注射等体积无菌生理盐水。造模后继续给药，每天1次，连续3天，各组大鼠在造模前、造模后2h、4h、8h、24h及48h，分别测定受试踝关节及足容积。
如表7所示，尿酸钠结晶注入大鼠踝关节腔后，其足部肿胀程度显著高于注射等体积生理盐水的正常组，各时间点足肿胀度均有显著性差异。灌胃秋水仙碱的大鼠，各时间点足肿胀程度均较模型组显著降低。与模型组比较，UTLOH-4a的低、中、高剂量组在注射尿酸钠结晶后的24h、48h足容积显著降低。而UTLOH-4e的中、高剂量组在注射尿酸钠结晶后的2h、4h、8h、24h及48h各时间点足容积均显著降低。该结果表明，在本大鼠急性痛风性关节炎模型中，UTLOH-4e在2h后就能显著抑制大鼠踝关节肿胀，而UTLOH-4a抗肿胀作用体现在造模24h后。
表7.UTLOH系列化合物对急性痛风性关节炎大鼠足肿胀的影响(
Figure PCTCN2018100503-appb-000034
n＝9-10)
Figure PCTCN2018100503-appb-000035
Figure PCTCN2018100503-appb-000036
注：所有数据以均数±标准差
Figure PCTCN2018100503-appb-000037
表示。与正常组比较， #P<0.05, ##P<0.01。与模型组比较，*P<0.05,**P<0.01。
在本发明提及的所有文献都在本申请中引用作为参考，就如同每一篇文献被单独引用作为参考那样。此外应理解，在阅读了本发明的上述讲授内容之后，本领域技术人员可以对本发明作各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。
参考文献
1.Song,Y.,et al.,Comparison of two molecular scaffolds,5-methylisoxazole-3-carboxamide and 5-methylisoxazole-4-carboxamide.Curr Pharm Des,2014.20(1):p.146-52.

Claims (11)

  1. 一种式I化合物、或其盐、或其光学异构体、或其外消旋体、或其溶剂化物、或其前体，
    Figure PCTCN2018100503-appb-100001
    式中，各个R独立地选自下组：-OH、-OCH 3、-OCH 2CH 3；
    m为1、2或3的整数。
  2. 如权利要求1所述的式I化合物、或其盐、或其光学异构体、或其外消旋体、或其溶剂化物、或其前体，其特征在于，所述化合物选自下组:
    Figure PCTCN2018100503-appb-100002
  3. 一种药物组合物，其特征在于，包括：
    (i)权利要求1所述的式I化合物、或其盐、或其光学异构体、或其外消旋体、或其溶剂化物、或其前体；和
    (ii)药学上可接受的载体；
    其中式I化合物的定义如权利要求1所述。
  4. 一种药物组合物，其特征在于，包括：
    (i)第一活性成分，所述第一活性成分为式II化合物，
    Figure PCTCN2018100503-appb-100003
    和
    (ii)药学上可接受的载体。
  5. 如权利要求4所述的药物组合物，其特征在于，所述式II化合物选自下组：
    Figure PCTCN2018100503-appb-100004
  6. 如权利要求4所述的药物组合物，其特征在于，所述药物组合物还包括第二活性成分，所述第二活性成分为权利要求1所述的式I化合物、或其盐、或其光学异构体、或其外消旋体、或其溶剂化物、或其前体；其中式I化合物的定义如权利要求1所述。
  7. 如权利要求4或6所述的药物组合物，其特征在于，所述第一活性成分和第二活性成分的重量比为1:100至100：1，较佳地为1:10至10：1。
  8. 一种权利要求1所述的式I化合物、或其盐、或其光学异构体、或其外消旋体、或其溶剂化物、或其前体、或权利要求3或4所述的药物组合物的用途，其特征在于，用于制备药物或制剂，所述药物或制剂用于(i)治疗炎症或炎症相关疾病；和/或(ii)调节LPS诱导的PGE2和NO的水平。
  9. 一种式I化合物或其盐的制法，其特征在于，包括步骤：
    (a)在惰性溶剂中，将化合物I-2与化合物I-A1进行反应，从而形成式I化合物；
    Figure PCTCN2018100503-appb-100005
    上述各式中，R和m的定义如权利要求1中所述。
  10. 一种体外抑制LPS诱导的PGE2和NO的方法，其特征在于，包括步骤：
    在LPS的存在下，将式I化合物或式II化合物或权利要求3所述的药物组合物与哺乳动物细胞接触，从而使得所述式I化合物或式II化合物抑制LPS诱导的PGE2和NO的水平，其中式I化合物的定义如权利要求1所述，所述式II化合物为
    Figure PCTCN2018100503-appb-100006
  11. 如权利要求8所述的用途，其特征在于，所述药物或制剂用于(iii)治疗痛风；和/或(iv)镇痛。
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