会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明公开
    • PHOSPHOLIPID COMPOSITIONS FOR CONTACT LENS CARE AND PRESERVATION OF PHARMACEUTICAL COMPOSITIONS
    • KONSERVIERUNG PHARPHOLIPIDZUSAMMENSETZUNGEN ZUR KONTAKTLINSENPFLEGE KONSERVIERUNG PHARMAZEUTISCHER ZUSAMMENSETZUNGEN
    • EP2155271A1
    • 2010-02-24
    • EP08755679.1
    • 2008-05-16
    • Alcon Research, Ltd.
    • GHOSH, MalayCHOWHAN, Masood, A.SCHNEIDER, L. Wayne.
    • A61L12/14
    • A61L12/143A01N57/12A61L2/18
    • The use of certain synthetic phospholipids to preserve pharmaceutical compositions from microbial contamination is described. The synthetic phospholipids have unique molecular arrangements wherein a phosphate group is linked to a quaternary ammonium functionality via a substituted-propenyl group, and the quaternary ammonium functionality is further linked to at least one long hydrocarbon chain. Such molecular arrangements are what make the phospholipids of formula (I) highly water soluble, e.g., the length of the hydrocarbon chain assists to maintain solubility and efficacy of the molecules for the uses described herein. The synthetic phospholipids described herein have been found to be particularly useful as antimicrobial preservatives for ophthalmic, otic and nasal pharmaceutical compositions, especially ophthalmic compositions. These compounds may also be utilized to disinfect contact lenses. The invention is based in-part upon a finding that the antimicrobial activity of the synthetic phospholipids is affected by the ionic strength of the compositions in which the compounds are contained. The provision of compounds having limited ionic strengths is therefore preferred.
    • 描述了使用某些合成磷脂来保护药物组合物免受微生物污染。 合成磷脂具有独特的分子结构,其中磷酸基通过取代的丙烯基与季铵官能团连接,并且季铵官能团进一步连接至至少一个长烃链。 这样的分子结构使得式(I)的磷脂高度水溶性,例如烃链的长度有助于保持分子用于本文所述用途的溶解度和功效。 已经发现本文所述的合成磷脂特别可用作眼用,耳用和鼻用药物组合物,特别是眼用组合物的抗微生物防腐剂。 这些化合物也可用于消毒隐形眼镜。 本发明部分地基于以下发现:合成磷脂的抗微生物活性受包含化合物的组合物的离子强度的影响。 因此优选提供具有有限离子强度的化合物。