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CN1042361A - Produce the method for mannuronic acid propyl ester sulfuric ester sodium salt - Google Patents

Produce the method for mannuronic acid propyl ester sulfuric ester sodium salt Download PDF

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Publication number
CN1042361A
CN1042361A CN 88109698 CN88109698A CN1042361A CN 1042361 A CN1042361 A CN 1042361A CN 88109698 CN88109698 CN 88109698 CN 88109698 A CN88109698 A CN 88109698A CN 1042361 A CN1042361 A CN 1042361A
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CN
China
Prior art keywords
mannuronic acid
propyl ester
acid propyl
sodium salt
hydrolysis
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Granted
Application number
CN 88109698
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Chinese (zh)
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CN1030454C (en
Inventor
管华诗
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Ocean University of Oingdao
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Ocean University of Oingdao
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Priority to CN 88109698 priority Critical patent/CN1030454C/en
Publication of CN1042361A publication Critical patent/CN1042361A/en
Application granted granted Critical
Publication of CN1030454C publication Critical patent/CN1030454C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

The present invention is a method of producing mannuronic acid propyl ester sulfuric ester sodium salt.It is basic raw material with the sodium alginate, produces mannuronic acid earlier through step such as hydrolysis, again the latter and propylene oxide reaction esterification is obtained the mannuronic acid propyl ester, and then uses the chlorsulfonic acid sulfonation, just obtains mannuronic acid propyl ester sulfuric ester sodium salt.This is a kind of novel substance, also is a kind of heparitin new drug.Its nontoxicity has stronger bolt ability that presses down and anti-moving congee ability, and tangible anti-freezing is arranged, lipopenicillinase, and the characteristics of blood viscosity lowering are a kind of medicines of ideal prevent and treat ischemic cardiovascular systemic disease.

Description

Produce the method for mannuronic acid propyl ester sulfuric ester sodium salt
The invention belongs to a kind of preparation method of heparitin new drug.
The prepared material mannuronic acid propyl ester sulfuric ester sodium salt of the present invention is a kind of novel substance, and it does not appear in the newspapers especially as the active drug of prevent and treat hypercoagulable disease.It belongs to a kind of polyanion electrolyte material, is a kind of heparinoid drug.
The inventor is in development heparinoid drug process, inquired into the precursor problem of quasi-heparin substance, and inquired into structure activity relationship, so that provide the data of usefulness at mannuronic acid propyl ester sulfuric ester sodium salt, purpose is really to find pharmacological action outstanding, this kind new medicine that the medicine source is wide again.
A kind of technology of producing mannuronic acid propyl ester sulfuric ester sodium salt is disclosed in the present invention, by this technology, the basic raw material sodium alginate source of producing above-mentioned new drug is wide, the drug toxicity that makes is atomic, even reaches avirulent degree, and has the very strong bolt ability that presses down, the atherosclerosis ability is arranged, and heparin sample activity such as anti-freezing, lipopenicillinase, blood viscosity lowering are arranged.Also can suppress lithangiuria salt crystalline growth velocity.
Because said medicine is not seen before, so its preparation method also is to propose first.
The raw material that this technology is used is a sodium alginate.Studies show that the algin molecule is β-D-(1 → 4) the mannopyranose aldehydic acid unit and α-L-(1 → 4 that connect) the unitary linear copolymers of ancient sieve pyranose aldehydic acid that is connected, i.e. M fragment and G fragment.They are to replace fragment by the M-G that accounts for major ingredient to link together.Therefore, it is a straight line block line style compound.
The main processes that is adopted among the present invention is as follows.
1, produces mannuronic acid
Get 100 gram food grade sodium alginates, the distilled water that adds about 5000ml carries out swelling, and the swollen time is 1~3 day, then add certain density oxalic acid or hydrochloric acid about 5000ml, boiling water bath refluxed 6~12 hours, was hydrolyzed, subsequent filtration is removed acid solution.To filter gains towards rare, add the solid Na that is equivalent to filtrate weight 0.5~1.0% 2CO 2, make it change sodium salt into.Transfer pH to 2~3 with hydrochloric acid again, centrifugation is further removed the G fragment, with the resin desalination of its supernatant liquor, can also use the sephadex desalination again, adds ethanol after the desalination and precipitates repeatedly, promptly gets mannuronic acid.
2, produce the mannuronic acid propyl ester
With the mannuronic acid airing of above-mentioned gained to a certain amount of moisture content, it is joined in the retort that fills quantitative propylene oxide, mannuronic acid (gram) is W: V=1 with the ratio of propylene oxide (ml): 2~5, add 0.5~1%NaOH of mannuronic acid weight or KOH or sodium ethylate again and make catalyzer, at constant temperature (50~80 ℃), level pressure (1.5~3kg/cm 2) act on 2~4 hours under the condition, or adopt normal pressure (temperature is 40~55 ℃) circumfluence method to react, promptly get the mannuronic acid propyl ester.
3, produce mannuronic acid propyl ester sulfuric ester sodium salt
With the mannuronic acid propyl ester of above-mentioned gained with methyl alcohol or ethanol repetitive scrubbing, oven dry then, (sulphonating agent is a chlorsulfonic acid in temperature (60~80 ℃) sulfonation again, solvent is methane amide or pyridine etc.), promptly obtain the hydrosulfate of mannuronic acid propyl ester, it is used the alcohol purifying, neutralize with NaOH, be the sulfuric ester sodium salt of mannuronic acid propyl ester, i.e. mannose ester.
Embodiment
1, gets 100 gram food grade sodium alginates, added 5000ml distilled water swelling 24 hours, add 5000ml2N oxalic acid again, boiling water bath refluxed 10 hours, filter then to remove acid solution, will filter gains and use 3000ml distilled water, in the ratios adding solid Na of 100 gram filtrate, 1 gram towards rare 2CO 3Be collosol state this moment, transfer pH to 2.8 with hydrochloric acid, centrifugal then (whizzer, 3000 rev/mins) separate, get its supernatant liquor, with 717 and 732 anion and cation exchange resin desalinations, after removing resin, the ethanol that adds 3 times of solution amount precipitates, and the gained throw out 60 ℃ of oven dry down, is mannuronic acid.
2, get the above-mentioned mannuronic acid of 70 grams, sneak into 30 gram water, add the 300ml propylene oxide, put into autoclave, add 0.7 gram NaOH, use the ethanol repetitive scrubbing then three times,, promptly get the mannuronic acid propyl ester in 60 ℃ of oven dry.
3, get the above-mentioned mannuronic acid propyl ester of having dried of 100 grams, be placed in the there-necked flask of 3000ml, install whipping appts and thermometer, add the 1000ml formamide solvent, stirring is mixed, and slowly splashes into the 300ml chlorsulfonic acid, and temperature is not higher than 5 ℃ (use ice-water baths) in the dropping process, make it be warming up to 65~70 ℃ after dripping, reacted 3 hours.Cooling is filtered, and adds 4000ml ethanol and precipitates, and throw out 200ml dissolved in distilled water is used ethanol sedimentation again, three times so repeatedly.After molten again,, behind the deionizing exchange resin, transfer pH to 8, use alcohol precipitation again, be mannuronic acid propyl ester sulfuric ester sodium salt with 4N NaOH solution with 732 and 717 cationic, anionic exchange resin desalinations.
Product of the present invention is a kind of good quasi-heparin substance, its pharmacological testing proves, it has the stronger bolt ability that presses down, during 50mg/kg dosage, press down the bolt rate more than 80%, and the effect of obvious anti-freezing, lipopenicillinase, reduction blood viscosity is arranged, stronger antiatherosclerosis function is arranged, also can suppress the growth rate of lithangiuria salt crystallization. Common pharmacology evidence, it does not all have impact to blood pressure, electrocardiogram, breathing etc. This product avirulence shows that with 18~22 gram Experiment on white mices press 10g/kg dosage gavage, animal subject diet, growth, activity all do not have any anomaly. It is a kind of desirable heparinoid drug of preventing, controlling the ischemic cardiovascular systemic disease, is particularly suitable for prevention.
The process route that the present invention produces mannuronic acid propyl ester sulfuric ester sodium salt is stablized feasible, does not have three wastes problem, is convenient to organize large-scale production.

Claims (4)

1, a kind ofly produces the method for mannuronic acid propyl ester sulfuric ester sodium salt, it is characterized in that earlier the sodium alginate hydrolysis being separated esterification then, sulfonation again by sodium alginate;
2, preparation method as claimed in claim 1, it is characterized in that said hydrolysis is separated under the acidic conditions carries out, and needs boiling water bath to reflux 6~12 hours;
3, preparation method as claimed in claim 1 is characterized in that said esterification is meant the mannuronic acid that made by hydrolysis and the reaction of propylene oxide, and this is reflected at and carries out under constant temperature, the level pressure condition or adopt the atmospheric pressure reflux method, and is catalyzer with NaOH; The temperature and pressure scope is respectively 50~80 ℃, 1.5~3kg/cm 2, when adopting Chang Ya rotation stream method, temperature is 40~55 ℃;
4, preparation method as claimed in claim 1 is characterized in that said sulfonation is meant the middle mannuronic acid propyl ester that makes and the reaction of chlorsulfonic acid, and wherein solvent is methane amide or pyridine, and sulfonation is carried out under mesophilic condition.
CN 88109698 1988-10-30 1988-10-30 Process for preparing sodium salt of propyl mannuronate sulfate Expired - Fee Related CN1030454C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 88109698 CN1030454C (en) 1988-10-30 1988-10-30 Process for preparing sodium salt of propyl mannuronate sulfate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 88109698 CN1030454C (en) 1988-10-30 1988-10-30 Process for preparing sodium salt of propyl mannuronate sulfate

Publications (2)

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CN1042361A true CN1042361A (en) 1990-05-23
CN1030454C CN1030454C (en) 1995-12-06

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10247073A1 (en) * 2002-10-09 2004-04-22 Westfälische Wilhelms-Universität Münster Monomeric uronic acid compound production, for use e.g. as immunosuppressive, antirheumatic or cardiovascular agents, by hydrolyzing bacterially produced polyuronic acid
CN100467492C (en) * 2001-11-30 2009-03-11 Fmc生物高聚物股份有限公司 Process for the preparation of alginates having a high mannuronic acid content
CN102212148A (en) * 2011-03-21 2011-10-12 中国海洋大学 Antithrombotic medicament for intravenous injection and preparation method and application thereof
CN102743409A (en) * 2012-06-18 2012-10-24 中国海洋大学 Application of poly mannuronic acid propyl ester sulfate in preparing anti- H1N1 influenza A virus medication
CN117064067A (en) * 2023-08-07 2023-11-17 湖北工业大学 Dietary fiber with controllable glycolysis rate, and preparation method and application thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100467492C (en) * 2001-11-30 2009-03-11 Fmc生物高聚物股份有限公司 Process for the preparation of alginates having a high mannuronic acid content
DE10247073A1 (en) * 2002-10-09 2004-04-22 Westfälische Wilhelms-Universität Münster Monomeric uronic acid compound production, for use e.g. as immunosuppressive, antirheumatic or cardiovascular agents, by hydrolyzing bacterially produced polyuronic acid
DE10247073B4 (en) * 2002-10-09 2010-08-05 Mirshafiey, Abbas, Prof. Dr. Process for the preparation of monomeric uronic acids, in particular D-mannuronic acid and D-guluronic acid and their use as medicaments
CN102212148A (en) * 2011-03-21 2011-10-12 中国海洋大学 Antithrombotic medicament for intravenous injection and preparation method and application thereof
CN102743409A (en) * 2012-06-18 2012-10-24 中国海洋大学 Application of poly mannuronic acid propyl ester sulfate in preparing anti- H1N1 influenza A virus medication
CN102743409B (en) * 2012-06-18 2013-11-20 中国海洋大学 Application of poly mannuronic acid propyl ester sulfate in preparing anti- H1N1 influenza A virus medication
CN117064067A (en) * 2023-08-07 2023-11-17 湖北工业大学 Dietary fiber with controllable glycolysis rate, and preparation method and application thereof

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Publication number Publication date
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