JP5323838B2 - キトサンの官能化に使用できる感熱性((ポリエチレンオキシド)ポリ(プロピレンオキシド))誘導体の製造方法 - Google Patents
キトサンの官能化に使用できる感熱性((ポリエチレンオキシド)ポリ(プロピレンオキシド))誘導体の製造方法 Download PDFInfo
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- 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
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
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- C08J2387/00—Characterised by the use of unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds
Description
−分子量約600 g/mol、プロピレンオキシド/エチレンオキシド比9/1、
−分子量約1,000 g/mol、プロピレンオキシド/エチレンオキシド比3/19、
−分子量約2,000 g/mol、プロピレンオキシド/エチレンオキシド比29/6、及び
−分子量約2,000 g/mol、プロピレンオキシド/エチレンオキシド比10/31
のランダム共重合体であるのが有利である。
−無水DMF中に溶解させた1-エチル-3-[3-(ジメチルアミノ)プロピル]-カルボジイミド及びジイソプロピルエチルアミン(またはトリエチルアミン)、次いで
−2,2-ジメトキシエチルアミン
を添加するのが有利である。
−N-ヒドロキシベンゾトリアゾール、次いで
−無水DMF中に溶解させた1-エチル-3-[3-(ジメチルアミノ)プロピル]-カルボジイミド及びジイソプロピルエチルアミン(またはトリエチルアミン) 、次いで
−2,2-ジメトキシエチルアミン
を添加するのが有利である。
−水素原子H、
−アセチル基COCH3を表し、アセチル化度は好ましくは0〜0.5、より好ましくは0〜0.2である。
a'. 天然キトサンから、ポリ(エチレンオキシド)鎖をグラフト化することによる、CHI-PEOキトサン誘導体の製造、該鎖は好ましくは分子量が1,000〜5,000 g/molであり、該CHI-PEO誘導体は、置換度が0.1より大きい、
b'. 工程a)で得たCHI-PEO誘導体と、目的とする誘導体を得るために予め加水分解させた本発明のPEOPPO-アセタール誘導体の反応
を含んでなる方法により、得られる。
PEOPPO(7.01 g、3.2 mmol)を無水DMF(300 mL)に入れた溶液に、窒素下で、無水コハク酸(0.336g、3.36 mmol)を無水DMF(20 mL) に入れた溶液を加える。反応媒体を室温で(及び大気圧で)5時間攪拌する。次いで、無水DMF(10 mL)中に溶解させたN-ヒドロキシベンゾトリアゾール(HOBt)(0.432g、3.2 mmol)、無水DMF(10 mL)中に一緒に溶解させた1-エチル-3-[3-(ジメチルアミノ)プロピル]-カルボジイミド(EDC)(0.675g、3.52 mmol)及びジイソプロピルエチルアミン(DIEA)(0.600 mL、3.52 mmol)、及び最後に2,2-ジメトキシエチルアミン(0.47g、4.48 mmol)を連続的に加える。反応媒体を室温及び大気圧で一晩強く攪拌する。DMFを蒸発させた後、生成物をジクロロメタン中に入れる。有機相を、僅かに酸性の水(pH 4)で、続いて水で洗浄する。有機相を硫酸ナトリウム上で除湿し、次いで蒸発させ、所望のアセタール誘導体を収率86%で得る。
(キトサンに対して0.11モル当量のPEOPPOの添加)。第一工程では、PEOPPO-アセタールのアルデヒド官能基を脱保護する。PEOPPO-アセタール(1.8g、0.66 mmol)を、比率(4/1)(v/v)のTFA/H2O混合物(23 mL)に溶解させる。反応媒体を室温及び大気圧で一晩攪拌する。TFA/H2O混合物を回転蒸発装置(Rotavapor)中で蒸発させる。得られたアルデヒド(0.66 mmol)を、ETOH/H2O混合物(1/1 (v/v)、15 mL)中に溶解させ、溶液のpHをpH 5.1に調節する。次いで、この溶液を、予めCH3COOH 0.2 M/EtOH混合物(3:2 (v/v)、320 mL)に溶解させたキトサン(1 g、6 mmol)に加える。次いで、混合物のpHを、水酸化ナトリウム(0.5 M)溶液で5.1に調節する。シアノ水素化ホウ素ナトリウム(0.532g、7.2 mmol)の水溶液(2 mL)を加える。室温及び大気圧で24時間攪拌後、反応媒体のpHを9に調節し、所望の生成物を沈殿させる。次いで、この生成物を、ETOH/H2O混合物(3/2、7/3、4/1、9/1 (v/v))、次いでエタノールで洗浄する。生成物をフリット4上で濾過し、空気中で乾燥させる。CHI-PEOPPO誘導体1.6gが得られる(収率63%)。誘導体の置換度(25℃で1H-NMRにより測定)は0.1である。
分子量2,000 g/molのPEO、DS 0.1のCHI-PEOPPO及びDS約0.25のPEOで合成を行う。
CHI-PEOPPO誘導体を、AcOH 0.3 M/AcONa 0.05 M中に濃度10 g/L(0.024 momnmol/L)で含んでなる水溶液が、可逆的なゾル-ゲル転移を有することを確認した。
図2は、水性媒体中に中性pHで可溶なCHI-PEOPPO-PEO誘導体(DS2=0.26、DS1=0.17)の可逆的ゾル-ゲル転移を示す。プロットした曲線は、CHI-PEOPPO-PEOキトサンを基剤とする熱会合性共重合体に対する保存(弾性)G'及びロス(粘性)G''(Pa)モジュラス対温度(℃)の変化を、下記の操作条件下、すなわち周波数を1 Hzに設定、加熱速度1℃/分、溶剤NaCl0.1 M、第一加熱の際及び第二加熱の際のCp=40 g/L(0.035 monomol/L)で示す。
熱ゲル化性質の立証
レオロジー測定及び流動及び動的流動の条件により、CHI-PEOPPO及びCHI-PEOPPO-PEO誘導体の熱会合性挙動を明確に立証することができた。
水性媒体におけるCHI-PEOPPO及びCHI-PEOPPO-PEO誘導体の流動挙動を試験した。操作条件は下記の通りである。
−DS1が0.17であるCHI-PEOPPOをCH2COOH 0.3 M/CH3COONa 0.1 M(14.9 g/Lまたは0.024 monomol/L)に入れる、及び
−CHI-PEOPPO-PEO(DSPEOPPO(DS1)=0.18及びDSPEO(DS2)=0.28)をリン酸塩緩衝液(pH =7.4、[NaCl]=0.134 M)(28.8 g/Lまたは0.025 monomol/L)に入れる、
−周波数を1 Hzに設定
−加熱速度は1℃/分である。
Claims (17)
- 工程(a)で使用する前記反応の前記溶剤が無水DMFである、請求項1に記載の製造方法。
- 工程(a)に続いて、工程(b)の前に、前記反応媒体を攪拌する、請求項1または2に記載の製造方法。
- 工程(b)で使用する前記反応の前記溶剤がDMFである、請求項1〜3のいずれか一項に記載の製造方法。
- 工程b)の前記カップリング反応が、1-エチル-3-[3-(ジメチルアミノ)プロピル]-カルボジイミド及びジイソプロピルエチルアミンの添加も含んでなる、請求項1〜4のいずれか一項に記載の製造方法。
- 前記工程a)及びb)が「シングルポットで」行われる、請求項1〜5のいずれか一項に記載の製造方法。
- 請求項1〜6のいずれか一項に記載の方法により得られるPEOPPO-アセタール誘導体。
- グラフト化されたキトサンの合成方法であって、(i)請求項7に記載されるPEOPPO-アセタール誘導体をPEOPPO-CHO誘導体に加水分解する工程、続いて(ii)前記PEOPPO-CHO誘導体をキトサンまたはキトサン誘導体の一種に、還元アミノ化型の反応により、グラフト化する工程を含んでなる、方法。
- 工程(ii)の後に、得られたCHI-PEOPPOキトサン誘導体を分子量1,000〜5,000 g/molであるポリ(エチレンオキシド)により官能化するための追加工程(iii)を含んでなる、請求項8または9に記載の方法。
- 前記CHI-PEOPPOキトサン誘導体が、分子量が1,000〜5,000 g/molであるポリ(エチレンオキシド)により官能化され、置換度DS2が0.1を超える、請求項10に記載の方法。
- 請求項10または11に記載される方法により得られるCHI-PEOPPO-PEOキトサン誘導体。
- 少なくとも一種の、請求項12に記載されたCHI-PEOPPO-PEOキトサン誘導体及び水相を含んでなる水性組成物。
- 前記CHI-PEOPPO-PEOキトサン誘導体が2〜30 g/Lの量で存在する、請求項13に記載の水性組成物。
- 前記水性組成物のpHが4〜生理学的pHである、請求項13または14に記載の水性組成物。
- 化粧品または薬学的に許容され得る媒体をさらに含んでなる、請求項13〜15のいずれか一項に記載の水性組成物。
- 請求項13〜16のいずれか一項に記載の水性組成物の、加熱によるゲル形成のための使用。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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FR0757506 | 2007-09-11 | ||
FR0757506A FR2920777B1 (fr) | 2007-09-11 | 2007-09-11 | Procede de preparation de derives (poly(oxyde d'ethylene) poly(oxyde de propylene) thermosensibles utiles pour fonctionnaliser le chitosane |
PCT/EP2008/062059 WO2009034130A1 (fr) | 2007-09-11 | 2008-09-11 | Procédé de préparation de dérivés (poly(oxyde d'éthylène) poly(oxyde de propylène)) thermosensibles utiles pour fonctionnaliser le chitosane. |
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JP2010539271A JP2010539271A (ja) | 2010-12-16 |
JP5323838B2 true JP5323838B2 (ja) | 2013-10-23 |
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US (1) | US8377418B2 (ja) |
EP (1) | EP2190884B1 (ja) |
JP (1) | JP5323838B2 (ja) |
AT (1) | ATE517128T1 (ja) |
CA (1) | CA2698864C (ja) |
ES (1) | ES2370093T3 (ja) |
FR (1) | FR2920777B1 (ja) |
WO (1) | WO2009034130A1 (ja) |
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FR2955255B1 (fr) * | 2010-01-15 | 2012-02-24 | Oreal | Composition cosmetique comprenant un polysaccharide greffe hydrophile et procede de traitement cosmetique |
FR3023486B1 (fr) * | 2014-07-11 | 2016-07-01 | Celenys | Procede de modification chimique de polyetheramines, nouvelles polyetheramines susceptible d'etre obtenues par ce procede, et utilisation de ces polyetheramines |
FR3024362A1 (fr) * | 2014-08-01 | 2016-02-05 | Synolyne Pharma Sa | Composition thermogelifiable sterilisee |
US11911532B2 (en) | 2017-03-29 | 2024-02-27 | The Regents Of The University Of Colorado, A Body Corporate | Reverse thermal gels and their use as vascular embolic repair agents |
WO2019241192A1 (en) * | 2018-06-13 | 2019-12-19 | Abbott Diabetes Care Inc. | Temperature-insensitive membrane materials and analyte sensors containing the same |
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DE19604180C2 (de) * | 1996-02-06 | 1997-12-18 | Henkel Kgaa | Verfahren zur Herstellung von Biopolymeren mit verbesserter Tensidlöslichkeit |
US5990237A (en) * | 1997-05-21 | 1999-11-23 | Shearwater Polymers, Inc. | Poly(ethylene glycol) aldehyde hydrates and related polymers and applications in modifying amines |
JPH1171406A (ja) * | 1997-07-03 | 1999-03-16 | Nippon Nsc Ltd | キトサン誘導体及びその製造方法 |
US6730735B2 (en) * | 1997-07-03 | 2004-05-04 | West Pharmaceutical Services Drug Delivery & Clinical Research Centre Limited | Conjugate of polyethylene glycol and chitosan |
GB9713980D0 (en) * | 1997-07-03 | 1997-09-10 | Danbiosyst Uk | New conjugates |
US7098194B2 (en) * | 2001-11-15 | 2006-08-29 | Biosyntech Canada, Inc. | Composition and method to homogeneously modify or cross-link chitosan under neutral conditions |
AU2002357806A1 (en) * | 2001-12-11 | 2003-06-23 | Sun Bio, Inc. | Novel monofunctional polyethylene glycol aldehydes |
JP4500263B2 (ja) * | 2003-07-28 | 2010-07-14 | 帝人株式会社 | 温度応答性ハイドロゲル |
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FR2920777A1 (fr) | 2009-03-13 |
CA2698864C (fr) | 2016-04-19 |
ATE517128T1 (de) | 2011-08-15 |
US20100204177A1 (en) | 2010-08-12 |
CA2698864A1 (fr) | 2009-03-19 |
WO2009034130A1 (fr) | 2009-03-19 |
JP2010539271A (ja) | 2010-12-16 |
FR2920777B1 (fr) | 2009-11-27 |
US8377418B2 (en) | 2013-02-19 |
EP2190884B1 (fr) | 2011-07-20 |
EP2190884A1 (fr) | 2010-06-02 |
ES2370093T3 (es) | 2011-12-12 |
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