PL2344547T3 - Polisacharydy zawierające funkcyjne grupy karboksylowe podstawione przez pochodną alkoholu hydrofobowego - Google Patents

Polisacharydy zawierające funkcyjne grupy karboksylowe podstawione przez pochodną alkoholu hydrofobowego

Info

Publication number
PL2344547T3
PL2344547T3 PL09744446T PL09744446T PL2344547T3 PL 2344547 T3 PL2344547 T3 PL 2344547T3 PL 09744446 T PL09744446 T PL 09744446T PL 09744446 T PL09744446 T PL 09744446T PL 2344547 T3 PL2344547 T3 PL 2344547T3
Authority
PL
Poland
Prior art keywords
functional groups
groups substituted
alcohol derivative
containing carboxyl
carboxyl functional
Prior art date
Application number
PL09744446T
Other languages
English (en)
Polish (pl)
Inventor
Rémi Soula
Olivier Soula
GéRARD SOULA
Richard Charvet
Original Assignee
Adocia
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 Adocia filed Critical Adocia
Publication of PL2344547T3 publication Critical patent/PL2344547T3/pl

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0009Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid alpha-D-Glucans, e.g. polydextrose, alternan, glycogen; (alpha-1,4)(alpha-1,6)-D-Glucans; (alpha-1,3)(alpha-1,4)-D-Glucans, e.g. isolichenan or nigeran; (alpha-1,4)-D-Glucans; (alpha-1,3)-D-Glucans, e.g. pseudonigeran; Derivatives thereof
    • C08B37/0021Dextran, i.e. (alpha-1,4)-D-glucan; Derivatives thereof, e.g. Sephadex, i.e. crosslinked dextran
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/70Carbohydrates; Sugars; Derivatives thereof
    • A61K31/715Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/70Carbohydrates; Sugars; Derivatives thereof
    • A61K31/715Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
    • A61K31/716Glucans
    • A61K31/721Dextrans
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/30Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
    • A61K47/36Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P17/00Drugs for dermatological disorders
    • A61P17/02Drugs for dermatological disorders for treating wounds, ulcers, burns, scars, keloids, or the like
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0009Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid alpha-D-Glucans, e.g. polydextrose, alternan, glycogen; (alpha-1,4)(alpha-1,6)-D-Glucans; (alpha-1,3)(alpha-1,4)-D-Glucans, e.g. isolichenan or nigeran; (alpha-1,4)-D-Glucans; (alpha-1,3)-D-Glucans, e.g. pseudonigeran; Derivatives thereof
    • C08B37/0018Pullulan, i.e. (alpha-1,4)(alpha-1,6)-D-glucan; Derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0024Homoglycans, 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
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0045Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid alpha-D-Galacturonans, e.g. methyl ester of (alpha-1,4)-linked D-galacturonic acid units, i.e. pectin, or hydrolysis product of methyl ester of alpha-1,4-linked D-galacturonic acid units, i.e. pectinic acid; Derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0051Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Fructofuranans, e.g. beta-2,6-D-fructofuranan, i.e. levan; Derivatives thereof
    • C08B37/0054Inulin, i.e. beta-2,1-D-fructofuranan; Derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0057Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Xylans, i.e. xylosaccharide, e.g. arabinoxylan, arabinofuronan, pentosans; (beta-1,3)(beta-1,4)-D-Xylans, e.g. rhodymenans; Hemicellulose; Derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/006Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
    • C08B37/0063Glycosaminoglycans or mucopolysaccharides, e.g. keratan sulfate; Derivatives thereof, e.g. fucoidan
    • C08B37/0072Hyaluronic acid, i.e. HA or hyaluronan; Derivatives thereof, e.g. crosslinked hyaluronic acid (hylan) or hyaluronates
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/006Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
    • C08B37/0084Guluromannuronans, e.g. alginic acid, i.e. D-mannuronic acid and D-guluronic acid units linked with alternating alpha- and beta-1,4-glycosidic bonds; Derivatives thereof, e.g. alginates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Materials Engineering (AREA)
  • Biochemistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Inorganic Chemistry (AREA)
  • Dermatology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medicinal Preparation (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
PL09744446T 2008-10-06 2009-10-06 Polisacharydy zawierające funkcyjne grupy karboksylowe podstawione przez pochodną alkoholu hydrofobowego PL2344547T3 (pl)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US13681608P 2008-10-06 2008-10-06
FR0805506A FR2936800B1 (fr) 2008-10-06 2008-10-06 Polysaccharide comportant des groupes fonctionnels carboxyles substitues par un derive d'alcool hydrophobe
PCT/IB2009/007054 WO2010041119A1 (fr) 2008-10-06 2009-10-06 Polysaccharides comportant des groupes fonctionnels carboxyles substitues par un derive d'alcool hydrophobe
EP09744446.7A EP2344547B1 (fr) 2008-10-06 2009-10-06 Polysaccharides comportant des groupes fonctionnels carboxyles substitues par un derive d'alcool hydrophobe

Publications (1)

Publication Number Publication Date
PL2344547T3 true PL2344547T3 (pl) 2015-03-31

Family

ID=40626798

Family Applications (1)

Application Number Title Priority Date Filing Date
PL09744446T PL2344547T3 (pl) 2008-10-06 2009-10-06 Polisacharydy zawierające funkcyjne grupy karboksylowe podstawione przez pochodną alkoholu hydrofobowego

Country Status (17)

Country Link
US (1) US20100167991A1 (enExample)
EP (1) EP2344547B1 (enExample)
JP (1) JP5695568B2 (enExample)
KR (1) KR101587521B1 (enExample)
CN (1) CN102216334B (enExample)
AU (1) AU2009302160B2 (enExample)
BR (1) BRPI0914008A2 (enExample)
CA (1) CA2739546C (enExample)
DK (1) DK2344547T3 (enExample)
ES (1) ES2527322T3 (enExample)
FR (1) FR2936800B1 (enExample)
IL (1) IL212165A (enExample)
MX (1) MX2011003650A (enExample)
PL (1) PL2344547T3 (enExample)
RU (1) RU2504554C2 (enExample)
WO (1) WO2010041119A1 (enExample)
ZA (1) ZA201103176B (enExample)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2948573B1 (fr) 2009-07-31 2011-11-18 Adocia Nouvelle forme d'administration de complexes de proteines osteogeniques
FR2943538B1 (fr) 2009-03-27 2011-05-20 Adocia Formulation a action rapide d'insuline recombinante humaine
FR2975099A1 (fr) * 2011-05-10 2012-11-16 Adocia Polysaccharides a degre de fonctionnalisation modulable
US9018190B2 (en) 2009-03-27 2015-04-28 Adocia Functionalized oligosaccharides
FR2952375A1 (fr) 2009-11-10 2011-05-13 Adocia Polysaccharides comportant des groupes fonctionnels carboxyles substitues par esterification par un derive d'alcool hydrophobe
FR2956116A1 (fr) * 2010-02-09 2011-08-12 Adocia Complexes polysaccharide/bmp-7 solubles a ph physiologique
FR2958647B1 (fr) 2010-04-08 2013-08-23 Adocia Polysaccharides comportant des groupes fonctionnels carboxyles substitues par un derive hydrophobe porte par un spacer au moins trivalent.
US20120295833A1 (en) * 2011-05-10 2012-11-22 Adocia Polysaccharides having an adjustable degree of functionalization
CN103889442B (zh) * 2011-08-10 2016-12-28 阿道恰公司 至少一种基础胰岛素的可注射溶液
US20130231281A1 (en) 2011-11-02 2013-09-05 Adocia Rapid acting insulin formulation comprising an oligosaccharide
CN113730555A (zh) 2012-01-09 2021-12-03 阿道恰公司 Ph为7且至少含pi为5.8至8.5之基础胰岛素和取代共聚(氨基酸)的可注射溶液
US9815912B2 (en) * 2012-03-19 2017-11-14 University Of Massachusetts Hydrophilic modification of water insoluble polysaccharide as surface-active agents
US20150314003A2 (en) 2012-08-09 2015-11-05 Adocia Injectable solution at ph 7 comprising at least one basal insulin the isoelectric point of which is between 5.8 and 8.5 and a hydrophobized anionic polymer
BR112015004501B1 (pt) * 2012-09-05 2021-04-13 Chugai Seiyaku Kabushiki Kaisha Derivado de ácido hialurônico tendo aminoácidos e grupos esterila introduzidos no mesmo e composição farmacêutica que o compreende
US9084806B2 (en) * 2012-11-12 2015-07-21 Research & Business Foundation Sungkyunkwan University Hypoxia-responsive nanoparticle for therapy and imaging of hypoxia-involving diseases
FR2997952B1 (fr) * 2012-11-13 2014-11-21 Adocia Composes anioniques substitues constitues d'un squelette forme d'un nombre discret d'unites saccharidiques
US20140187499A1 (en) * 2012-11-13 2014-07-03 Adocia Substituted anionic compounds consisting of a backbone made up of a discrete number of saccharide units
WO2014076423A1 (fr) 2012-11-13 2014-05-22 Adocia Formulation à action rapide d'insuline comprenant un composé anionique substitué
US9795678B2 (en) 2014-05-14 2017-10-24 Adocia Fast-acting insulin composition comprising a substituted anionic compound and a polyanionic compound
FR3020947B1 (fr) 2014-05-14 2018-08-31 Adocia Composition aqueuse comprenant au moins une proteine et un agent solubilisant, sa preparation et ses utilisations
FR3025428A1 (fr) 2014-09-08 2016-03-11 Adocia Composition pharmaceutique stable comprenant du pdgf
FR3043557B1 (fr) 2015-11-16 2019-05-31 Adocia Composition a action rapide d'insuline comprenant un citrate substitue
DE102016101448A1 (de) * 2016-01-27 2017-07-27 Strathmann Gmbh & Co. Kg Immunprophylaxe bei rezidivierenden bakteriellen Infektionen
CN111171174B (zh) * 2020-01-14 2022-02-01 上海图珐医药科技有限公司 葡聚糖衍生物及其制备方法和用于制备药剂的附加剂
CN111481734B (zh) * 2020-04-28 2022-04-15 北京诺康达医药科技股份有限公司 一种改性海藻酸钠自显影栓塞微球及其制备方法与应用
CN113563493B (zh) * 2021-07-01 2022-06-24 蚌埠医学院 疏水化多糖及其制备方法与应用

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6092205A (ja) * 1983-10-26 1985-05-23 Kanebo Ltd 乳化型化粧料
JPS6169801A (ja) * 1984-09-12 1986-04-10 Junzo Sunamoto 天然由来多糖誘導体およびその製造方法
IT1203814B (it) * 1986-06-30 1989-02-23 Fidia Farmaceutici Esteri dell'acido alginico
DE4136324A1 (de) * 1991-11-05 1993-05-13 Hoechst Ag Dextranderivate als adsorptionsmittel fuer gallensaeuren, mit gallensaeuren beladene dextranderivate und verfahren zu deren herstellung sowie deren anwendung als arzneimittel
EP0831143A1 (en) * 1996-09-19 1998-03-25 The Procter & Gamble Company Polymeric compound comprising one or more active alcohols
EP1026174B1 (en) * 1998-08-31 2005-05-18 Nof Corporation High-purity polysaccharide containing hydrophobic groups and process for producing the same
IL140844A0 (en) * 2001-01-10 2002-02-10 Polygene Ltd Cationic polysaccharide compositions
FR2914305B1 (fr) * 2007-03-29 2009-07-03 Proteins & Peptides Man Dextran fonctionnalise par des amino-acides hydrophobes.
FR2891149B1 (fr) * 2005-09-26 2007-11-30 Biodex Sarl Composition pharmaceutique a action cicatrisante comprenant un derive de dextrane soluble et un facteur de croissance derive des plaquettes.

Also Published As

Publication number Publication date
JP2012504697A (ja) 2012-02-23
KR20110067157A (ko) 2011-06-21
KR101587521B1 (ko) 2016-01-21
AU2009302160B2 (en) 2014-09-11
CN102216334A (zh) 2011-10-12
AU2009302160A1 (en) 2010-04-15
FR2936800B1 (fr) 2010-12-31
CA2739546C (fr) 2017-11-07
MX2011003650A (es) 2011-06-17
EP2344547A1 (fr) 2011-07-20
FR2936800A1 (fr) 2010-04-09
ZA201103176B (en) 2013-09-25
RU2011118338A (ru) 2012-11-20
BRPI0914008A2 (pt) 2015-10-27
DK2344547T3 (en) 2015-01-05
IL212165A (en) 2016-09-29
IL212165A0 (en) 2011-06-30
ES2527322T3 (es) 2015-01-22
CA2739546A1 (fr) 2010-04-15
WO2010041119A1 (fr) 2010-04-15
JP5695568B2 (ja) 2015-04-08
CN102216334B (zh) 2014-08-13
EP2344547B1 (fr) 2014-12-03
US20100167991A1 (en) 2010-07-01
RU2504554C2 (ru) 2014-01-20

Similar Documents

Publication Publication Date Title
PL2344547T3 (pl) Polisacharydy zawierające funkcyjne grupy karboksylowe podstawione przez pochodną alkoholu hydrofobowego
EP2549252B8 (en) Capacitive sensor
HUE038837T2 (hu) Helyettesített policiklusos karbamoilpiridon-származék
IL229996A0 (en) Biodegradable polymer - biologically active moiety conjugates
EP2412708A4 (en) SUBSTITUTED 3-HYDROXY-4-PYRIDONE DERIVATIVE
EP2514747A4 (en) SUBSTITUTED AMINOTHIAZINE DERIVATIVE
PL2336132T3 (pl) Pochodne morfolinopuryny
EP2269993A4 (en) 2-aminoquinazoline DERIVATIVE
ZA201005769B (en) Bicycloamine derivative
IL208623A0 (en) Cyclopentylacrylamide derivative
EP2495246A4 (en) FULLER DERIVATIVE
PL2343292T3 (pl) Nowa pochodna prostaglandyny I<sub>2</sub>
EP2457898A4 (en) FULLER DERIVATIVE
ZA201006992B (en) Hydroxyquinoxalinecarboxamide derivative
IL212683A0 (en) Biphenylacetamide derivative
GB2474154B (en) Acetylated Wood
EP2332925A4 (en) NOVEL DIHYDROTRIAZINE DERIVATIVE
AU2008901264A0 (en) Simulating a modification to a vehicle
AU2009100576A4 (en) Tow-Bar Banner rack
AU2009900461A0 (en) Tethered ten pinbowling X 3
AU2009901643A0 (en) Environmental impact
AU2009905059A0 (en) A system to represent prizes
HK1179552A (en) Push rod activated medicated module
GB0801891D0 (en) Brekkie to go range
HK1168440A (en) Tlb prefetching