CN100567303C - The purposes of Coumarether compound and composition thereof - Google Patents
The purposes of Coumarether compound and composition thereof Download PDFInfo
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- CN100567303C CN100567303C CNB2005100236778A CN200510023677A CN100567303C CN 100567303 C CN100567303 C CN 100567303C CN B2005100236778 A CNB2005100236778 A CN B2005100236778A CN 200510023677 A CN200510023677 A CN 200510023677A CN 100567303 C CN100567303 C CN 100567303C
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Abstract
The invention discloses a kind of Coumarether compound that from feverfew, extracts or its pharmacy acceptable salt, perhaps contain the extract of this Coumarether compound or its pharmacy acceptable salt, or contain their application of pharmaceutical composition aspect treatment bronchial asthma, chronic bronchitis, pulmonary emphysema.Experimentation on animals proves that bronchial asthma, chronic bronchitis, emophysematous symptom can effectively be treated and improve to the Coumarether compound that this class is extracted from feverfew.
Description
Technical field
The present invention relates to a kind of Coumarether compound that from feverfew, extracts, contain the pharmaceutical composition or the application of protective foods aspect treatment bronchial asthma, chronic bronchitis, pulmonary emphysema disease of this compound.
Background technology
Coumarether compound (shown in I) can be obtained by extraction in the plant or chemosynthesis, mode semi-synthetic, bio-transformation, for example extracts from feverfew Eclipta prostrata (Eclipta prostrata Linn), Herbia Wedeliae (Wedelia chinensis) or Herba Ecliptae plants such as (Eclipta alba).The extract part of this compound in feverfew is branch, leaf or fruit position, the especially leaf site of plant.
In the formula,
R
1Represent hydrogen atom, hydroxyl, methoxyl group;
R
2Represent hydrogen atom, C
1-C
8Alkyl;
R
3And R
4Be selected from hydrogen atom, halogen atom, hydroxyl, methoxyl group independently of one another.
1956, Govindachari etc. isolated Coumarether composition Wedelolactone (wedelolactone) first from Wedelia calendulacea, and its structure is
(Govindachari et.al.″Chemical Examination of Wedelia Calendulacea，Part I，Structure of Wedelolactone″，Journal of the Chemical Society(1956)，pp.629-632.；Govindachariet.al.″Chemical Investigation of Wedelia Calendulacea，Part II，The Position of the Methoxyl Group in Wedelolactone″，Journal of theChemical Society，(1957)，545-547；)。
Thereafter Bhargava etc. isolates demethyl wedelolactone (demethylwedelolactone) from Herba Ecliptae (Eclipta alba), and structural formula is:
(Bhargava KK.et.al Isolation of desmethylwedelolactone and its glucoside fromEclipta alba.Indian J Chem，1970，8(7)：664-665)。
Li CC. etc. and United States Patent (USP) 6,552,071 disclose the structure and synthetic method (the Li CC.et.al Total synthesis of wedelolactone.J Org Chem.2003 Oct31 of such compound derivatives; 68 (22): 8500-4.) (Yuan et al.Methods for treating cell death diseases andinflammation.United States Patent 6,552,071).
This compounds had been considered to protect effect (Wong et.al.Wedelolactone and coumestan derivatives as new antihepatotic and antiphlogisticprinciples.Arzneimittelforschung.1998May 38 (5): 661-5 such as liver, hemostasis, antisnake venom in the past; Melo.et.al.Inhibitionof the myotoxic and hemorrhagic activities of crotalid venoms by Ecliptaprostrate extracts and constituents.Toxicon.1994 May; 32 (5): 595-603).
On the other hand, bronchial asthma is that a kind of airway reactivity inflammation and airway hyperreactivity based on eosinophilic granulocyte, mastocyte reaction is the disease of feature.The susceptible person shows as in various degree reversibility obstruction of the air passage symptom to this type of inflammation.Show as repeated relapsing clinically with the expiratory dyspnea of wheezing sound, uncomfortable in chest or cough.
The sickness rate of bronchial asthma is higher, and the whole world has 100,000,000 6 thousand ten thousand patients approximately, and morbidity about 1%-5% in various places does not wait, and China's morbidity is near 1%, and half was fallen ill before 12 years old, and the adult is male, women morbidity is roughly the same.About 20% patient has family history.(the 4th edition 32-38 of internal medicine such as Chen Haozhu)
The risk factor of bronchial asthma is a lot, as sucking anaphylactogen, motion, freezing air stimulation or cause pathogeny imcrobe infection etc.Typical pathogenesis is that cell-mediated down at B, plasmocyte produces IgE after having the people of allergic constitution to contact antigen, and the latter is attached on mastocyte and the basophil.When contacting antigen once more, calcium ion enters in the mastocyte, and cell discharges histamine, eosinophilic granulocyte becomes to drawing the factor etc., makes unstriated muscle that spasm take place immediately, and this is the speed property a sent out asthma reaction.More commonly many patients start at contact antigen a few hours and even several 10 hours rear and make asthma, are called late asthmatic response.
For a long time, airway smooth muscle shrinks and causes that airway constriction is considered to cause the sole cause of asthma always, thereby the treatment purport is to remove bronchospasm.Along with progress in recent years, recognize that now mediator such as platelet activation factor causes air flue myxedema, inflammatory cell infiltration, glandular secretion increase, mucociliary clearance dysfunction, add in the official jargon that it also is the important mechanisms of asthma attack that mucous plug blocks.Therefore, except that emphasizing spasmolysis, also to take into account during treatment at the medication of nonspecific air flue variability inflammation.
The medicine of the main anti-bronchial asthma of using mainly contains following a few class, (1) β clinically at present
2-receptor stimulant as Salmeterol, can be removed symptoms of asthma rapidly, Chang Zuowei one line drug use.Shortcoming is that effective drug duration is short, and is invalid to airway inflammation reaction and non-specific segmental bronchus hyperirritability state, and the report that makes patient's lost of life is arranged; (2) cortin as the beclometasone of inhalation, the prednisolone of oral administration etc., can suppress that transformation reactions of air flue and inflammatory reaction, determined curative effect, but the prolonged application side effect is bigger, so the two wires drug use of Chang Zuowei treatment bronchial asthma; (3) phosphodiesterase inhibitor, as theophylline, such medicine effect a little less than, and have the side effect of tangible adrenoceptor antagonistic action, therapeutic index is low, clinical application needs therapeutic drug monitoring, so Chang Zuowei treats the three-way drug use of asthma.(4) cellular activity stablizer, as Sodium Cromoglicate, such medicine can be stablized mastocyte, suppresses it and takes off particle, thereby play antasthmatic effect.But it is not a bronchodilators, does not have anti-inflammatory or anti-allergic effects yet, only can play prophylactic effect.(5) anticholinergic drug takes off product as different third, can resist vagus nerve to bronchial spasm effect, but such medicine bioavailability is poor, and a little less than the drug effect, side effect is many, so to the less use of general asthmatic patient.(wear the pharmacological agent and the trend of the moral bronchial asthma nineties, pharmacy progress 199418 (4) 198-201; Progress foreign medical science pharmacy fascicle 199825 (2) 76-82 of Yang Bin anti-asthmatic medicament)
The cause of disease of chronic bronchitis, pulmonary edema and pathogenesis are very complicated, do not illustrate fully as yet so far.There is bronchial chronic inflammatory diseases in the both, and it is one of wherein important treatment means that antianaphylaxis, spasmolysis are relievingd asthma.
In sum, still lack the medicine that onset is quick, side effect is little in the market.Therefore, this area presses for a kind of good effect of exploitation, light bronchial asthma, chronic bronchitis, the pulmonary emphysema medicine of side effect, especially derives from the novel substance that bronchial asthma, chronic bronchitis, pulmonary emphysema therapeutic value are arranged of natural phant.
Summary of the invention
The inventor is for solving above-mentioned problem, through extensive research, find above-mentioned Coumarether compound or its pharmacy acceptable salt, the extract that perhaps contains this Coumarether compound or its pharmacy acceptable salt can be treated bronchial asthma, chronic bronchitis, pulmonary emphysema effectively.Therefore, a first aspect of the present invention purpose just provides Coumarether compound or its pharmacy acceptable salt of a kind of formula I, perhaps contains the purposes of the extract of the Coumarether compound of formula I or its pharmacy acceptable salt,
In the formula,
R
1Represent hydrogen atom, hydroxyl, methoxyl group;
R
2Represent hydrogen atom, C
1-C
8Alkyl;
R
3And R
4Be selected from hydrogen atom, halogen atom, hydroxyl, methoxyl group independently of one another;
It is characterized in that the medicine that is used to prepare treatment or prevents bronchial asthma, chronic bronchitis, pulmonary emphysema disease.
In another preference, described pharmacy acceptable salt is formula I compound and the sour formed salt that is selected from down group: spirit of salt, Hydrogen bromide, sulfuric acid, citric acid, tartrate, phosphoric acid, lactic acid, pyruvic acid, acetate, succsinic acid, oxalic acid, fumaric acid, toxilic acid, oxaloacetic acid, methylsulfonic acid, ethyl sulfonic acid, Phenylsulfonic acid or isethionic acid.
In another preference, described formula I compound or described extract extract from feverfew.
In another preference, described feverfew is selected from Eclipta prostrata (Eclipta prostrata Linn), Herbia Wedeliae (Wedelia chinensis) or Herba Ecliptae (Eclipta alba) or its combination.
In another preference, described formula I compound is the Wedelolactone with formula II:
In another preference, formula I compound be complete synthesis by chemistry, chemistry is semi-synthetic or obtain with the mode of biotransformation, as
Compound 1:R
1=R
2=H, R
3=R
4=OH;
Compound 2:R
1=OH, R
2=CH
3, R
3=R
4=OH;
Compound 3:R
1=OH, R
2=CH
3, R
3=Cl, R
4=OH;
Compound 4:R
1=OCH
3, R
2=H, R
3=Cl, R
4=H;
Compound 5:R
1=H, R
2=(CH
2)
2CH
3, R
3=OCH
3, R
4=Cl;
Compound 6:R
1=OH, R
2=CH
3, R
3=H, R
4=OH.
In a second aspect of the present invention, a kind of treatment bronchial asthma, chronic bronchitis, emophysematous pharmaceutical composition are provided, it contains
(a) as formula I compound or its pharmacy acceptable salt of the significant quantity of activeconstituents, perhaps contain the Coumarether compound of formula I or the extract of its pharmacy acceptable salt
In the formula,
R
1Represent hydrogen atom, hydroxyl, methoxyl group;
R
2Represent hydrogen atom, C
1-C
8Alkyl;
R
3And R
4Be selected from hydrogen atom, halogen atom, hydroxyl, methoxyl group independently of one another;
(b) pharmaceutically acceptable carrier.
Wherein, this pharmaceutical composition can also comprise one or more auxiliary activity compositions that are selected from down group: salbutamol, clenbuterol, formoterol, Salmeterol, aminophylline, Isopropylscopolamine, ketotifen, tranilast, Sodium Cromoglicate, budesonide, beclometasone and prednisolone.
In a third aspect of the present invention, a kind of bronchial asthma, chronic bronchitis, emophysematous protective foods prevented and treated is provided, it contains formula I compound or its pharmacy acceptable salt of significant quantity
In the formula,
R
1Represent hydrogen atom, hydroxyl, methoxyl group;
R
2Represent hydrogen atom, C
1-C
8Alkyl;
R
3And R
4Be selected from hydrogen atom, halogen atom, hydroxyl, methoxyl group independently of one another;
With acceptable carrier on the food.
As used herein, alkyl is meant the alkyl of the straight or branched with 1～8 carbon atom, for example methyl, ethyl, propyl group, sec.-propyl, butyl, isobutyl-, the tertiary butyl, sec-butyl, amyl group, neo-pentyl, hexyl, heptyl, octyl group etc.The alkyl that preferably has the straight or branched of 1～4 carbon atom.Most preferable.
Compound of the present invention can with by pharmaceutically or the acceptable acid of physiology or alkali deutero-salt form use.These salt include, but is not limited to the salt with following acid formation: spirit of salt, Hydrogen bromide, sulfuric acid, citric acid, tartrate, phosphoric acid, lactic acid, pyruvic acid, acetate, succsinic acid, oxalic acid, fumaric acid, toxilic acid, oxaloacetic acid, methylsulfonic acid, ethyl sulfonic acid, Phenylsulfonic acid or isethionic acid.Halid salt is suitable equally.Other salt comprise: the salt that forms with basic metal or alkaline-earth metal (as sodium, potassium, calcium or magnesium), and with the form (when with this form administration, can change into active part in vivo) of " prodrug " of ester, carbamate or other routines.
The extract that contains formula I compound also can be used for the present invention.A kind of preferred extracting method as mentioned above.Usually, the purity at extract Chinese style I compound should more preferably be 50-98% at 40%-99.9% by weight.
The present invention also comprises its pharmaceutical composition and treats bronchial asthma, chronic bronchitis, emophysematous method that it comprises the The compounds of this invention to the administration medicine effective quantity.
Coumarether compound of the present invention can be used for treating bronchial asthma, chronic bronchitis, pulmonary emphysema.
The pharmaceutical composition that the present invention relates to comprises the compound that the present invention relates to and the pharmaceutically acceptable carrier of significant quantity." significant quantity " means in the medical science of generally approval is judged category, and the consumption of compound is enough to improve feelings to be cured the disease, and do not occur severe side effect during treatment.The significant quantity of certain compound should be determined according to concrete feelings to be cured the disease, the patient's that receives treatment age and physiological situation, the degree that is in a bad way, course of treatment factor such as length, pharmaceutical carrier and route of administration.Comprise about by weight 0.05% this moment in the pharmaceutical composition of the present invention to about 99.9%, be generally Coumarether compound or its pharmacy acceptable salt of 0.05-90% (weight), or contain their extract.
Usually, when The compounds of this invention is used for such use, they can with one or more pharmaceutically acceptable carrier or mixed with excipients, use with form of mixtures as additive, thinner, carrier or propellent etc., make powder inhalation, aerosol or sprays.The example of the diluent or carrier that is fit in the powder inhalation comprises lactose, dextran, gum arabic, seminose alcohol and glucose.The solvent that is fit in aerosol and the sprays is ethanol or oleic acid, and suitable latent solvent is glycerine, propylene glycol or polyoxyethylene glycol.Solvent and latent solvent can be referred to as thinner.The propellent that is fit to is a Trichloromonofluoromethane, Refrigerant 12, dichloro tetrafluoro ethane, propane, Trimethylmethane, normal butane, carbonic acid gas, nitrous oxide, nitrogen etc.
Perhaps can be with following form oral administration: tablet, capsule, dispersible powder, particle or suspension (containing 0.05-5% suspension agent according to appointment), syrup (containing 10-50% sugar according to appointment) and elixir (containing the 20-50% ethanol of having an appointment), perhaps carry out the parenteral administration with sterile injectable solution or form of suspension (containing the 0.05-5% suspension agent of having an appointment in the medium waiting to ooze).For example, these pharmaceutical preparations can contain and the about 2.5-90% of carrier blended, are about the activeconstituents of 5%-60% (weight) usually.
Common pharmaceutical dosage form comprises the oral or non-oral administration of the form of powder inhalation, aerosol, sprays, granula, pulvis, tablet, capsule, syrup, suppository, injection, emulsion, tincture, suspension, solution.
For non-oral administration, can use powder inhalation, aerosol, sprays.
For oral administration, can use tablet, lozenge, capsule, pill, powder, particle, paste, suspensoid, emulsion or solution.
For parenteral administration, can use injection and infusion solution.
For intramuscular injection, can use the aqueous solution and oil solution or suspensoid and corresponding depots preparation.
The effective dose of used activeconstituents can change with the severity of the pattern of administration and disease to be treated.Yet, when compound of the present invention every day gives with the dosage of about 0.5-500mg/kg the weight of animals, can obtain gratifying effect usually, preferably give with the dosage that separates for 2-4 time every day, or with the slowly-releasing form administration.For most of large mammal, the total dose of every day is about 1-100mg.Be applicable to dosage form for oral administration, comprise active compound with the about 0.5-500mg of solid-state or liquid pharmaceutically acceptable carrier blended.Can regulate this dosage replys so that optimal treatment to be provided.For example, by an urgent demand of treatment situation, but give the dosage that several times separate every day, or dosage is reduced pari passu.Usually, the range of choice of the suitable clinical dosage of adult oral every day is 1-1000mg, is preferably 10-200mg, and non-oral dosage every day of being grown up is 0.1-100mg, preferred 1-100mg.
In preference, compound of the present invention can be by oral and intravenously, intramuscular or subcutaneous route administration.Solid-state carrier comprises: starch, lactose, secondary calcium phosphate, Microcrystalline Cellulose, sucrose and white bole, and liquid carrier comprises: sterilized water, polyoxyethylene glycol, nonionic surface active agent and edible oil (as Semen Maydis oil, peanut oil and sesame oil), as long as be fit to the characteristic of activeconstituents and required specific administration mode.Normally used adjuvant also can advantageously be comprised in pharmaceutical compositions, for example seasonings, pigment, sanitas and antioxidant such as vitamin-E, vitamins C, BHT and BHA.
As used herein, " non-oral " comprises subcutaneous injection, intravenous injection, peritoneal injection and drip transfusion, use suitable dispersion agent or lubricant and suspension agent, can make the water-based or the oiliness suspension agent of injection formulations such as aseptic injection by this area ordinary method, the preparation of aseptic injection is nontoxic, non-Orally administered solution or the suspension agent in thinner or in the solution, the aqueous solution for example, available carrier or solvent comprise that water, isotonic saline solution, nontoxic nonvolatile oil also can be used as solvent or suspension medium.For this reason, can use any fixed oil or lipid acid, comprise natural, synthetic or semisynthetic fatty oil and lipid acid and natural, synthetic or semisynthetic single, double or Witepsol W-S 55.
The available medicine of the preparation of the suppository of rectal application and a kind of suitable nonirritant excipient mix, and vehicle is solid at normal temperatures, thereby and be liquid dissolving under the temperature in intestines, with drug release in rectum, as theobroma oil or polyoxyethylene glycol.
The solid chemicals of oral medication comprises pulvis, granula, tablet, pill, capsule as mentioned above.This formulation can mix with active principle and at least a additive, these additives comprise sucrose, lactose, cellulose sugar, N.F,USP MANNITOL, maltose, dextran, starch, agar, the alginic acid inflammation, chitin, chitosan, pectin, tragacanth gum, gum arabic, gelatin, collagen, casein, albumin and synthetic or semisynthetic polymkeric substance and glyceryl ester, general these formulations can contain other additive, comprise inert diluent, lubricant such as Magnesium Stearate, sanitas such as metagin class, Sorbic Acid, oxidation inhibitor such as vitamins C, alpha-tocopherol and halfcystine, decomposition agent, binding agent, thickening material, damping fluid, sweeting agent, seasonings and spices.Tablet and pill also can be coated with casing.Oral liquid dosage form comprises pharmaceutically useful emulsion, syrup, tincture, suspension and solution, can contain inert diluent commonly used, as water.
From being easy to prepare the position with administration, preferred pharmaceutical composition is a solid-state composition, and especially tablet and solid are filled or the capsule of liquid filling.Oral administration is preferred.
When using The compounds of this invention treatment or prevention bronchial asthma, chronic bronchitis, pulmonary emphysema, also can with other treatment bronchial asthma, chronic bronchitis, pulmonary emphysema means or other treatment agent coupling.For example with one or more auxiliary activity composition couplings that are selected from down group:
Beta-2 adrenoceptor agonist: salbutamol, Salmeterol, clenbuterol, formoterol, Salmeterol, Racemic isoproterenol, terbutaline, fenspiride, clorprenaline;
M nachr antagonist: Isopropylscopolamine, ipratropium bromide;
Phosphodiesterase inhibitor: aminophylline, diprophylline;
Cross the sensitive media sustained-release agent: ketotifen, Sodium Cromoglicate, tranilast, the Si Te of Top; Or
Adrenocortical hormone: budesonide, beclometasone, prednisolone.
Said among the present invention " protective foods " is meant and shows the food with specific nourishing function, be applicable to that promptly specific crowd is edible to have the effect of regulating body function, directly is not the food of purpose with the treatment.Wherein contain Coumarether compound or its pharmacy acceptable salt of 0.05-50% (weight) usually, or contain their extract.
Major advantage of the present invention is:
The present invention finds a class Coumarether compound can effectively prevent and treat bronchial asthma, chronic bronchitis, pulmonary emphysema.Compare with existing medicine, it is more remarkable that the present invention treats bronchial asthma, chronic bronchitis, emophysematous effect, and little to the human body toxic side effect.
The compounds of this invention can be made prevention, treatment bronchial asthma, chronic bronchitis, emophysematous medicine as activeconstituents separately or with other medicines jointly with it, also can with The compounds of this invention separately or with other activeconstituents and food on acceptable carrier make prevention, treat bronchial asthma, chronic bronchitis, emophysematous protective foods.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.The experimental technique of unreceipted actual conditions in the following example, usually according to normal condition, or the condition of advising according to manufacturer.
Extract the compound Wedelolactone in embodiment 1 Herba Ecliptae (Eclipta alba)
(1) immersion and filtration
Herba Ecliptae herb 300kg, immerse fully in 0.75 ton of ethanol (concentration 95%) → soaked overnight (10 hours) → coarse filtration, thereby remove herb residue (reservation) → clean filter (suction filtration) or high speed centrifugation (10000rpm, 10 minutes), thereby remove dust and thin slag → green clear filtrate.
(2) ethanol reclaims
Ethanol is reclaimed in distillation, and temperature is no more than 60 degrees centigrade → every time and heated up in a steamer 2 hours, and the medicinal extract in the reactor is moved to (it is blackish green deeply that medicinal extract is, slightly thick) in the gathering barrel → repetition above-mentioned steps, until reclaiming whole ethanol.
(3) secondary soaks to reach back and heats up in a steamer
Reclaim 0.75 ton of ethanol, soak herb residue → soaked overnight again, coarse filtration, only filter and distill reclaim require the same.Obtain medicinal extract.
(4) ethyl acetate extraction
Get above-mentioned medicinal extract 50-80 degree centigrade (more preferably 60-70 degree centigrade) and add hot water vibration mixing, the hot water dosage is 50 times of medicinal extract volume, and suction filtration obtains hot water phase liquid.According to water: the ester phase volume ratio is the ethyl acetate that 1: 1 ratio adds extraction usefulness, fully after the mixing concussion, leaves standstill, and treats water/ester phase layering.Shift out ethyl acetate layer, 50 degrees centigrade of vacuum decompressions are distilled to drying, add the small amount of ethanol dissolving, place beaker to spend the night in 4 degrees centigrade of preservations, and precipitation appears in the bottom.Decompress filter obtains precipitation, and 50 degrees centigrade of oven dryings obtain crude product.
(5) product separation is refining
Get crude product 5g, mix sample, carry out silica gel column chromatography (200g in 10g 200～300 order silica gel, 200～300 orders), with sherwood oil-acetone gradient elution, every 100mL collects once, obtain the opposed polarity position respectively, merge (TLC sherwood oil-acetone 1: 1, spot Rf=1/3).After the component that merges concentrated, mix sample again and carry out column chromatography in silica gel, with methylene dichloride-acetone gradient elution, every 50mL collects once, obtains the opposed polarity position respectively, merges (TLC methylene dichloride-acetone 3: 1, spot Rf=1/6).After the component that merges concentrated, mix sample again and carry out column chromatography in silica gel, with toluene-acetone-formic acid gradient elution, every 50mL collects once, obtains the opposed polarity position respectively, merges (TLC toluene-acetone-formic acid 10: 10: 1, spot Rf=1/2).After the component that merges concentrated, mix sample again and carry out column chromatography in silica gel, use the methylene chloride-methanol gradient elution, every 25mL collects once, obtains the opposed polarity position respectively, merging (TLC methylene chloride-methanol 20: 1, spot Rf=1/6).Obtain the product of purity＞90%, yield about 1%.
(6) standard substance are refining
The sample 30mg of purity＞90% is dissolved in 70% methyl alcohol, carries out anti-phase wash-out, detect, collect 70% sample that elutes, merge the standard substance that obtain purity＞98% with TLC with Lichroprep RP-18 (40～63 μ) post.Yield about 90%.The proterties of standard substance, molecular formula, fusing point and IR, EIMS,
1HNMR,
13The ownership at CNMR peak is as follows:
Pale powder, molecular formula: C
16H
10O
7, 315 ℃ of mp (decomposition), and UV λ max (MeOH, nm): 211.5 (4.65), 247 (4.40), 304 (4.01) (sh), and 350 (4.48).IR(KBr)cm
-13300，1715，1640，1620，1445，1415，1320，1205，1155，1070。EIMS m/z(％)：314(M
+，100)，313(22)，299([M-CH
3]，28)，285(5)，271([M-CH
3-CO]，8)，243([M-CH
3-CO-CO]，28)，187(17)，69(42)。
1HNMR(δ)：7.23(s)，7.14(s)，6.58(d，J＝2.3Hz)，6.42(d，J＝2.3Hz，3.90(s)
13CNMR(δ)：158.0(C-1)，101.1(C-2)，159.6(C-3)，95.6(C-4)，99.3(C-5)，161.1(C-6)，95.0(C-7)，155.5(C-8)，155.0(C-9)，104.7(C-10)，145.2(C-11)，144.3(C-12)，99.0(C-13)，114.0(C-14)，148.7(C-15)，55.7(C-16)。
Comprehensive above-mentioned data, the compound that shows acquisition are the Wedelolactones with formula II:
Embodiment 2 chemosynthesis The compounds of this invention
Reference literature (Wong et.al. " Wedelolactone and coumestan derivatives as newantihepatotic and antiphlogistic principles.Arzneimittelforschung.1998 May38 (5): 661-5; ) synthetic method synthetic compound 1 to 6.
Wherein, compound 1:R
1=R
2=H, R
3=R
4=OH;
Compound 2:R
1=OH, R
2=CH
3, R
3=R
4=OH;
Compound 3:R
1=OH, R
2=CH
3, R
3=Cl, R
4=OH;
Compound 4:R
1=OCH
3, R
2=H, R
3=Cl, R
4=H;
Compound 5:R
1=H, R
2=(CH
2)
2CH
3, R
3=OCH
3, R
4=Cl;
Compound 6:R
1=OH, R
2=CH
3, R
3=H, R
4=OH.
The preparation of embodiment 3 tablets
Utilize routine techniques, mix following component, direct compression then, the pharmaceutical composition of preparation tablet form, its prescription is as follows:
| Composition | Every content |
| Embodiment 1 preparation Wedelolactone | 20mg |
| Lactose | 130mg |
| W-Gum | 40mg |
| Magnesium Stearate | 10mg |
| Total amount | 200mg |
The preparation of embodiment 4 tablets
Utilize routine techniques, mix following component, direct compression then, the pharmaceutical composition of preparation tablet form, its prescription is as follows:
| Composition | Every content |
| Embodiment 1 preparation Wedelolactone | 15mg |
| Salmeterol | 5mg |
| Lactose | 130mg |
| W-Gum | 40mg |
| Magnesium Stearate | 10mg |
| Total amount | 200mg |
The preparation of embodiment 5 sprayss
Utilize routine techniques, the pharmaceutical composition of preparation spray form, 1000 bottles of cans, its prescription is as follows:
| Composition | Every content |
| Embodiment 1 preparation Wedelolactone | 25g |
| Budesonide | 8g |
| Ethanol | 750g |
| Propylene glycol | 150g |
| Refrigerant 12 | 1500g |
| Vitamins C | 7.5g |
Effect embodiment 1 The compounds of this invention is to the therapeutic action of cavy experimental asthma model
Laboratory animal: male white short wool breed cavy, body weight 250g ± 20g.
Administering mode: get the Wedelolactone oral administration of embodiment 1, dosage is respectively 5mg/kg, 20mg/kg, and model control group is 0.5% carboxymethyl cellulose (CMC), the salbutamol group is 1.5mg/kg.
Experimental technique: reference literature (the Guo sparrow hawk. the 1st volume of People's Health Publisher of the animal model of human diseases, 1982; 235236. uncle Xu cloud etc. the pharmacological experiment method. the 2nd edition. People's Health Publisher, 1991; 546-547.) set up cavy experimental asthma model, guinea pig intraperitoneal injection 10% Protalbinic acid 1ml sensitization, the spray tank of cavy being put in the 14th day semi closed after the sensitization excites once more with the spraying of 1% Protalbinic acid.The cavy that symptoms of asthma occurs is considered to responsive cavy as step experiment down, the death in order to prevent the cavy tetchiness, and 1h intramuscular injection 10mg/kg diphenhydramine prevents before the experiment.Qualified cavy is divided into 4 groups at random, is respectively 0.5%CMC, salbutamol 1.5mg/kg group, Wedelolactone: 5,20mg/kg dosage group.The 15th day beginning gastric infusion, continuous 7 days, 2 times/day, behind the last administration 1h, the spray tank of cavy being put into semi closed brought out asthma with the spraying of 1% Protalbinic acid, and the asthma incidence is divided into 4 grades:
1 grade is expiratory dyspnea; 2 grades are expiratory dyspnea+cough; 3 grades for have difficulty in breathing+cough+fall; 4 grades is dead.The morbidity latent period of correspondence when record is respectively organized cavy and the different onset grade occurred.Experimental result data adopts the student-t check.
The result: test-results sees Table 1, and Wedelolactone is 5, and 20mg/kg compares with negative control group, and drawing of energy significant prolongation allergic asthma cavy breathed heavily latent period, compared significant difference with model group.Illustrate that Wedelolactone can resist the effect of cavy asthma due to the ovum protein.
The latent period (s) of table 1 cavy asthma experiment different onset progression (x ± SD)
"
*" expression p＜0.05 compared significant difference with model control group (0.5%CMC).
"
*" expression p＜0.01 compared significant differences with model control group (0.5%CMC).
Effect embodiment 2 The compounds of this invention are to the influence of asthmatic guinea pigs eosinophilic granulocyte
Laboratory animal: male white short wool breed cavy, about body weight 120g.
Administering mode: get the compound oral administration of embodiment 2, dosage is respectively 10mg/kg, and negative control group is 0.5%CMC.Positive controls prednisone, dosage are 2.0mg/kg.
Experimental technique: reference literature (the Guo sparrow hawk. the 1st volume of People's Health Publisher of the animal model of human diseases, 1982; 235236. uncle Xu cloud etc. the pharmacological experiment method. the 2nd edition. People's Health Publisher, 1991; 546-547.) set up cavy experimental asthma model, guinea pig intraperitoneal injection 10% Protalbinic acid 1ml sensitization, the spray tank of cavy being put in the 14th day semi closed after the sensitization excites once more with the spraying of 1% Protalbinic acid.The cavy that symptoms of asthma occurs is considered to responsive cavy as step experiment down, the death in order to prevent the cavy tetchiness, and 1h intramuscular injection 10mg/kg diphenhydramine prevents before the experiment.Qualified cavy is divided into 5 groups at random, is respectively 0.5%CMC, prednisone 2.0mg/kg group, the 10mg/kg dosage group of compound 1 to 6.The 15th day beginning gastric infusion, continuous 7 days, 2 times/day, behind the last administration 1h, the spray tank of cavy being put into semi closed brought out asthma with the spraying of 1% Protalbinic acid.Lure breathe heavily finish after, the promoting the circulation of qi cannula, carry out bronchoalveolar lavage with physiological saline, the broncho-alveolar lavage liquid of collecting (BALF) is centrifugal, get cell precipitation, get one after resuspended to place on the slide glass, push jack, use the Rui Shi dyeing, microscopically cell divide counting calculates the wherein percentage ratio of eosinophilic granulocyte (Eos).
The result:
Test-results sees Table 2.Compound 1 to 6 can reduce the percentage ratio of eosinophilic granulocyte, compared significant difference with model group, illustrate that compound 1 to 6 can reduce the gatherings of inflammatory cell in air flue such as eosinophilic granulocyte, reduce airway inflammation, play the effect of cavy asthma due to the antagonism ovum protein.
Table 2 formula (I) compound is to the influence of asthmatic guinea pigs eosinophilic granulocyte (n=15, x ± SD)
| Group | Dosage (mg/kg) | Number of animals (n) | Eos(％) |
| 0.5％CMC | - | 15 | 25.07±1.72 |
| Prednisone | 2.0 | 15 | 7.24±1.45 ** |
| Compound 1 | 10.0 | 15 | 15.68±2.12 ** |
| Compound 2 | 10.0 | 15 | 9.42±0.95 ** |
| Compound 3 | 10.0 | 15 | 18.57±2.40 * |
| Compound 4 | 10.0 | 15 | 19.82±3.61 * |
| Compound 5 | 10.0 | 15 | 18.43±2.92 * |
| Compound 6 | 10.0 | 15 | 11.37±2.26 ** |
"
*" expression p＜0.05 compared very significant difference with model control group (0.5%CMC).
"
*" expression p＜0.01 compared significant differences with model control group (0.5%CMC).
Claims (4)
1, Coumarether compound or its pharmacy acceptable salt of a kind of (A) formula I or (B) contain the purposes of extract of the Coumarether compound of formula I,
Wherein, the Coumarether compound of described formula I is:
Compound 1:R
1=R
2=H, R
3=R
4=OH; Or
Compound 2:R
1=OH, R
2=CH
3, R
3=R
4=OH;
It is characterized in that it is used to prepare the medicine or the protective foods of treatment or prevention bronchial asthma.
2, purposes as claimed in claim 1, it is characterized in that described pharmacy acceptable salt is the Coumarether compound and the sour formed salt that is selected from down group of formula I: spirit of salt, Hydrogen bromide, sulfuric acid, citric acid, tartrate, phosphoric acid, lactic acid, pyruvic acid, acetate, succsinic acid, oxalic acid, fumaric acid, toxilic acid, oxaloacetic acid, methylsulfonic acid, ethyl sulfonic acid, Phenylsulfonic acid or isethionic acid.
3, purposes as claimed in claim 1 is characterized in that, the Coumarether compound of described formula I extracts from feverfew.
4, purposes as claimed in claim 3 is characterized in that, described feverfew is selected from Eclipta prostrata (Eclipta prostrata Linn), Herbia Wedeliae (Wedelia chinensis) or Herba Ecliptae (Eclipta alba).
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| CN102657867A (en) * | 2007-05-30 | 2012-09-12 | 中央研究院 | Transcriptional regulator combination |
| CN103816148B (en) * | 2014-01-28 | 2016-08-17 | 中国药科大学 | Wedelolactone application in preparing anti-fibrosis drug |
| CN103768054B (en) * | 2014-01-28 | 2016-08-31 | 中国药科大学 | The application in preparing anti-fibrosis drug of the demethyl wedelolactone-7-sulfuric ester |
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Non-Patent Citations (1)
| Title |
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| 旱莲草化学成分的研究. 张金生，郭倩明.药学学报，第36卷第1期. 2001 * |
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