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    • 5. 发明授权
    • Process for production of O-alkylated rapamycin derivatives
    • O-烷基化雷帕霉素衍生物的制备方法
    • US07193078B2
    • 2007-03-20
    • US11067718
    • 2005-03-01
    • Masashi IsozakiTetsuro Kawanishi
    • Masashi IsozakiTetsuro Kawanishi
    • C07D498/18
    • C07D498/18
    • Disclosed herein is a process for production of an O-alkylrapamycin derivative represented by the general formula (1) below by reaction between rapamycin and alkyl triflate in an organic solvent, characterized in that the reaction is carried out in the presence of trialkylamine. (where R denotes alkyl, arylalkyl, hydroxyalkyl, alkoxyalkyl, acyloxyalkyl, aminoalkyl, alkylaminoalkyl, alkoxycarbonylaminoalkyl, acylaminoalkyl, or aryl.) This process is capable of producing O-alkylrapamycin derivative efficiently owing to improvement in reaction yields for O-alkylation.
    • 本文公开了通过在有机溶剂中雷帕霉素和三氟甲磺酸烷基酯之间的反应制备由以下通式(1)表示的O-烷基雷帕霉素衍生物的方法,其特征在于反应在三烷基胺存在下进行。 (其中R表示烷基,芳基烷基,羟基烷基,烷氧基烷基,酰氧基烷基,氨基烷基,烷基氨基烷基,烷氧基羰基氨基烷基,酰氨基烷基或芳基)。由于O-烷基化的反应产率提高,该方法能够有效地生产O-烷基雷帕霉素衍生物。
    • 9. 发明授权
    • Microsensor needle for pH measurement in tissue
    • 微量传感器针组织中的pH测量
    • US08095196B2
    • 2012-01-10
    • US11642036
    • 2006-12-19
    • Thomas G. HackerTetsuro Kawanishi
    • Thomas G. HackerTetsuro Kawanishi
    • A61B5/1459A61B5/00G02B6/00G01N33/50
    • A61B5/14542A61B5/14539A61B5/14556A61B5/1459A61B5/6848Y10T29/49879
    • A sensor probe for in-situ measurement of pH in a human tissue (e.g., cardiovascular) environment comprises a hollow needle having a tip and a back end. The tip is insertable into the tissue. An optic cable comprises a light conduit surrounded by a cladding. A first end of the light conduit is inserted from the back end of the needle and extends to within a predetermined distance of the tip to define a cavity within the tip. A porous dye layer is contained within the cavity, wherein the dye layer has a response to excitation light delivered through the light conduit that varies according to the pH of the tissue environment. An overcoat layer is deposited on the dye layer, wherein the overcoat layer is ionically permeable and substantially opaque at a light wavelength corresponding to the variable response of the dye layer.
    • 用于在人体组织(例如心血管)环境中原位测量pH的传感器探针包括具有尖端和后端的空心针。 尖端可插入组织。 光缆包括由包层围绕的光导管。 光导管的第一端从针的后端插入并延伸到尖端的预定距离内以限定尖端内的空腔。 多孔染料层包含在空腔内,其中染料层对根据组织环境的pH变化的通过光导管传递的激发光具有响应。 在染料层上沉积外涂层,其中外涂层在对应于染料层的可变响应的光波长处是离子可渗透的并且基本上不透明。