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IS4469A - Cytosan polymer with a certain acetylation ratio - Google Patents

Cytosan polymer with a certain acetylation ratio

Info

Publication number
IS4469A
IS4469A IS4469A IS4469A IS4469A IS 4469 A IS4469 A IS 4469A IS 4469 A IS4469 A IS 4469A IS 4469 A IS4469 A IS 4469A IS 4469 A IS4469 A IS 4469A
Authority
IS
Iceland
Prior art keywords
cytosan
polymer
certain
acetylation ratio
acetylation
Prior art date
Application number
IS4469A
Other languages
Icelandic (is)
Inventor
Artursson Per
Schipper Nicolaas
Original Assignee
Astra Aktiebolag
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 Astra Aktiebolag filed Critical Astra Aktiebolag
Publication of IS4469A publication Critical patent/IS4469A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/0012—Galenical forms characterised by the site of application
    • A61K9/0053—Mouth and digestive tract, i.e. intraoral and peroral administration
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
    • A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
    • 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

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Biochemistry (AREA)
  • Molecular Biology (AREA)
  • Nutrition Science (AREA)
  • Physiology (AREA)
  • Medicinal Preparation (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
IS4469A 1994-11-14 1997-04-22 Cytosan polymer with a certain acetylation ratio IS4469A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9403905A SE9403905D0 (en) 1994-11-14 1994-11-14 New formulations
PCT/SE1995/001342 WO1996020730A1 (en) 1994-11-14 1995-11-13 A chitosan polymer having a specific degree of acetylation

Publications (1)

Publication Number Publication Date
IS4469A true IS4469A (en) 1997-04-22

Family

ID=20395954

Family Applications (1)

Application Number Title Priority Date Filing Date
IS4469A IS4469A (en) 1994-11-14 1997-04-22 Cytosan polymer with a certain acetylation ratio

Country Status (9)

Country Link
EP (1) EP0792330A1 (en)
JP (1) JPH10509207A (en)
AU (1) AU710769B2 (en)
CA (1) CA2203632A1 (en)
FI (1) FI972056A0 (en)
IS (1) IS4469A (en)
NO (1) NO972172L (en)
SE (1) SE9403905D0 (en)
WO (1) WO1996020730A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020018732A1 (en) * 2000-04-21 2002-02-14 Hung William M. Preserving compositions containing chitosan and processes for making water soluble O-acetylated chitosan and chitosan
US6716970B2 (en) 2000-04-21 2004-04-06 Adjuvant Pharmaceuticals, Llc Water soluble, randomly substituted partial N-partial O-acetylated chitosan, preserving compositions containing chitosan, and processes for making thereof
GB0315632D0 (en) 2003-07-04 2003-08-13 West Pharm Serv Drug Res Ltd Pharmaceutical formulations
US7125967B2 (en) 2003-10-08 2006-10-24 Adjuvant Pharmaceuticals, Llc Water-soluble chitosan having low endotoxin concentration and methods for making and using the same
WO2007002345A2 (en) * 2005-06-21 2007-01-04 Bausch & Lomb Incorporated Method for improving water solubility of chitosan
FR3016882A1 (en) 2014-01-30 2015-07-31 Sofradim Production PROCESS FOR THE PREPARATION OF HIGH-DEGREE ACETYLATION CHITOSAN
EP3034612A1 (en) * 2014-12-16 2016-06-22 Greenaltech, S.L. Chitin and chitosan producing methods
EP3372234B1 (en) * 2015-11-04 2021-09-29 Stelic Institute & Co., Inc. Complex comprising rnai molecule and n-acetylated chitosan
WO2024054707A2 (en) 2022-09-08 2024-03-14 Luna Labs Usa, Llc Layer-by-layer delivery of active agents

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4873092A (en) * 1987-05-21 1989-10-10 Murata Kikai Kabushiki Kaisha Slow-releasing preparation
GB8904370D0 (en) * 1989-02-25 1989-04-12 Cosmas Damian Ltd Liquid delivery compositions
HRP950149A2 (en) * 1994-04-13 1997-06-30 Janssen Pharmaceutica Nv Intranasal antimigrene composition

Also Published As

Publication number Publication date
AU710769B2 (en) 1999-09-30
EP0792330A1 (en) 1997-09-03
FI972056L (en) 1997-05-14
WO1996020730A1 (en) 1996-07-11
FI972056A7 (en) 1997-05-14
JPH10509207A (en) 1998-09-08
AU3943395A (en) 1996-07-24
FI972056A0 (en) 1997-05-14
NO972172D0 (en) 1997-05-12
SE9403905D0 (en) 1994-11-14
NO972172L (en) 1997-05-12
CA2203632A1 (en) 1996-07-11

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