ES2007273A6 - Un metodo de obtencion de derivados cationizados de polisacaridos naturales se origen vegetal. - Google Patents

Un metodo de obtencion de derivados cationizados de polisacaridos naturales se origen vegetal.

Info

Publication number
ES2007273A6
ES2007273A6 ES8802330A ES8802330A ES2007273A6 ES 2007273 A6 ES2007273 A6 ES 2007273A6 ES 8802330 A ES8802330 A ES 8802330A ES 8802330 A ES8802330 A ES 8802330A ES 2007273 A6 ES2007273 A6 ES 2007273A6
Authority
ES
Spain
Prior art keywords
water
polysaccharide
chains
organic solvent
treated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES8802330A
Other languages
English (en)
Inventor
Franco Conti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Texcontor
Original Assignee
Texcontor
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Texcontor filed Critical Texcontor
Publication of ES2007273A6 publication Critical patent/ES2007273A6/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B31/00—Preparation of derivatives of starch
    • C08B31/08—Ethers
    • C08B31/12—Ethers having alkyl or cycloalkyl radicals substituted by heteroatoms, e.g. hydroxyalkyl or carboxyalkyl starch
    • C08B31/125—Ethers having alkyl or cycloalkyl radicals substituted by heteroatoms, e.g. hydroxyalkyl or carboxyalkyl starch having a substituent containing at least one nitrogen atom, e.g. cationic starch
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00—Drugs for disorders of the metabolism
    • A61P3/06—Antihyperlipidemics
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0024—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof
    • C08B37/0027—2-Acetamido-2-deoxy-beta-glucans; Derivatives thereof
    • C08B37/003—Chitin, i.e. 2-acetamido-2-deoxy-(beta-1,4)-D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan, i.e. deacetylated product of chitin or (beta-1,4)-D-glucosamine; Derivatives thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Polymers & Plastics (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Diabetes (AREA)
  • Hematology (AREA)
  • Obesity (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Graft Or Block Polymers (AREA)
  • Steroid Compounds (AREA)

Abstract

UN METODO DE OBTENCION DE DERIVADOS CATIONIZADOS DE POLISACARIDOS NATURALES DE ORIGEN VEGETAL, CON UNA ESTRUCTURA DE POLIGLUCOSIDO DE 50-500 UNIDADES DE MONOMERO Y UNA O MAS CADENAS LATERALES FIJADAS AL NUCLEO GLUCOSIDO, TENIENDO ESTAS CADENAS UNO O MAS ATOMOS DE NITROGENO CUATERNARIO. EL PROCEDIMIENTO CONSISTE ESENCIALMENTE EN PRETRATAR EL POLISACARIDO NATURAL CON UNA SOLUCION ACIDA 0,1-10 M DURANTE 10-30 HORAS A REFLUJO, SI ES INSOLUBLE EN AGUA, O CON UN HIDROXIDO ALCALINO DE 10-30% EN PESO, A TEMPERATURA AMBIENTE, DURANTE 1-3 HORAS, SI ES SOLUBLE EN AGUA. EL POLISACARIDO PRETRATADO SE DISUELVE EN AGUA O UN DISOLVENTE ORGANICO, Y SE REPRECIPITA EN FORMA AMORFA. ESTE PRECIPITADO, SUSPENDIDO EN UN DISOLVENTE ORGANICO, SE TRATA CON AMINAS ALIFATICAS Y/O AROMATICAS Y/O CON AMINOACIDOS CONVENIENTES A LA ESTRUCTURA BUSCADA. POR ULTIMO, LA CADENA O CADENAS LATERALES DEL POLISACARIDO SE CATIONIZAN POR REACCION CON SALES DE AMONIO CUATERNARIO CON UN GRUPO EPOXIDO REACTIVO O CON LAS CORRESPONDIENTEHALOHIDRINAS. ESTOS PRODUCTOS SON ESPECIALMENTE ACTIVOS COMO AGENTES HIPOCOLESTEROLEMICOS.
ES8802330A 1987-11-20 1988-07-22 Un metodo de obtencion de derivados cationizados de polisacaridos naturales se origen vegetal. Expired ES2007273A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT22711/87A IT1223362B (it) 1987-11-20 1987-11-20 Derivati cationizzati polisaccaridi ad attivita' ipocolesterolemizzante

Publications (1)

Publication Number Publication Date
ES2007273A6 true ES2007273A6 (es) 1989-06-01

Family

ID=11199536

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8802330A Expired ES2007273A6 (es) 1987-11-20 1988-07-22 Un metodo de obtencion de derivados cationizados de polisacaridos naturales se origen vegetal.

Country Status (6)

Country Link
US (1) US5059685A (es)
EP (1) EP0319645A1 (es)
JP (1) JPH01156301A (es)
ES (1) ES2007273A6 (es)
IT (1) IT1223362B (es)
PT (1) PT87905B (es)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8818116D0 (en) * 1988-07-29 1988-09-01 D S Pharmaceuticals Ltd Compounds & compositions for medical treatment
DE3836599A1 (de) * 1988-10-27 1990-05-03 Wolff Walsrode Ag Neue polysaccharide, verfahren zu ihrer herstellung und ihre verwendung
US5227481A (en) * 1989-07-07 1993-07-13 National Starch And Chemical Investment Holding Corporation Cationic polysaccharides and reagents for their preparation
US5349089A (en) 1989-07-07 1994-09-20 National Starch And Chemical Investment Holding Corporation Reagent for preparing polycationic polysaccharides
JPH03120227A (ja) * 1989-10-02 1991-05-22 Shigeo Ochi 飲食物消化分解産物吸収抑制剤
KR940000166B1 (ko) * 1989-11-09 1994-01-08 니혼다바고 상교오 가부시기가이샤 신규 글루코사민 유도체 및 이것을 막 구성성분으로서 함유한 리포솜
CA2059272A1 (en) * 1990-04-12 1991-10-13 Akira Hasegawa 4,6-0-hydroxyphosphoryl-glucosamine derivatives
US5556619A (en) * 1992-08-20 1996-09-17 The Du Pont Merck Pharmaceutical Company Crosslinked polymeric ammonium salts
AU8129894A (en) * 1993-11-01 1995-05-23 Alpha-Beta Technology, Inc. Derivatized polysaccharide bile acid sequestrant for reducing cholesterol
MX9602812A (es) * 1994-01-18 1997-06-28 Du Pont Sales de amonio polimericas, reticuladas.
US5567685A (en) * 1994-08-16 1996-10-22 Yissum Research Development Company Of The Hebrew University Of Jerusalem Water-Soluble polyene conjugate
CA2132685A1 (en) * 1994-09-22 1996-03-23 Robert T. Tyler An aqueous alcoholic alkaline process for cationization of normal, waxy and high amylose starches from legume, cereal, tuber and root
IT1267498B1 (it) * 1994-11-10 1997-02-05 P & G Spa Derivato cellulosico cationico, relativo uso per la riduzione dei livelli di colesterolo e relativa composizione farmaceutica.
US6011008A (en) * 1997-01-08 2000-01-04 Yissum Research Developement Company Of The Hebrew University Of Jerusalem Conjugates of biologically active substances
DE19932075A1 (de) * 1999-07-12 2001-01-18 Cognis Deutschland Gmbh Vernetzerfreie Zubereitungen
CA2848648C (en) 2006-06-02 2017-10-10 Synedgen, Inc. Chitosan-derivative compounds and methods of controlling microbial populations
UA109772C2 (uk) * 2009-07-02 2015-10-12 Агент для підвищення гідрофільності ґрунту і способи його застосування

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1133845A (en) * 1965-04-29 1968-11-20 Upjohn Co Pharmaceutical compositions comprising dextran and cellulose ethers
JPS608797B2 (ja) * 1977-11-08 1985-03-05 三菱油化株式会社 多糖類ｍ―３０―ｃ
US4129722A (en) * 1977-12-15 1978-12-12 National Starch And Chemical Corporation Process for the preparation of high D. S. polysaccharides
NZ191762A (en) * 1978-10-19 1982-09-14 Merck & Co Inc Hypocholesteremic composition containing cholesterol synthesis inhibitor and anion exchange resin
FR2484419B1 (fr) * 1980-06-16 1985-10-04 Meito Sangyo Kk Derives du dextranne et leurs sels, leur preparation et produits cosmetiques comprenant ces substances
IT1144697B (it) * 1981-04-06 1986-10-29 Texcontor Ets Derivato semi-sintetico della chitina processo per la sua preparazione e composizioni terapeutiche che lo comprendono come principio attivo
SE8103137L (sv) * 1981-05-19 1982-11-20 Pharmacia Ab Polymer med kvartera aminogrupper
DE3245784A1 (de) * 1982-12-10 1984-06-14 Wella Ag, 6100 Darmstadt Kosmetisches mittel auf der basis von quaternaeren chitosanderivaten, neue quaternaere chitosanderivate sowie verfahren zu ihrer herstellung
DE3502833A1 (de) * 1985-01-29 1986-07-31 Wella Ag, 6100 Darmstadt Kosmetische mittel auf der basis von quaternaeren chitosanderivaten, neue quaternaere hydroxyethyl-substituierte chitosanderivate sowie verfahren zu ihrer herstellung
US4663159A (en) * 1985-02-01 1987-05-05 Union Carbide Corporation Hydrophobe substituted, water-soluble cationic polysaccharides
IT1188184B (it) * 1985-08-14 1988-01-07 Texcontor Ets Sali ammonici quaternari di polisaccaridi ad attivita' ipocolesterolemizzante

Also Published As

Publication number Publication date
PT87905B (pt) 1993-01-29
PT87905A (pt) 1988-08-01
US5059685A (en) 1991-10-22
JPH01156301A (ja) 1989-06-19
IT1223362B (it) 1990-09-19
EP0319645A1 (en) 1989-06-14
IT8722711A0 (it) 1987-11-20

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Legal Events

Date Code Title Description
SA6 Expiration date (snapshot 920101)

Free format text: 2008-07-22