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    • 1. 发明授权
    • Anticancer compound, intermediate therefor, and processes for producing these
    • 抗癌化合物,其中间体及其制备方法
    • US07910752B2
    • 2011-03-22
    • US11885216
    • 2006-03-15
    • Harukuni TokudaKatsumi Nishimura
    • Harukuni TokudaKatsumi Nishimura
    • C07D307/92
    • C07D307/92
    • The present invention provides a method for easily and inexpensively preparing a racemate or an optically-active 2-(1 -hydroxyethyl)-5-hydroxynaphtho[2,3-b]furan-4,9-dione in high yields, 2-acetyl-2,3-dihydro-5-hydroxynaphtho[2,3-b]furan-4,9-dione which is useful as an intermediate for preparing NFD, and an anticancer agent comprising 2-(1-hydroxyethyl)-5-hydroxynaphtho[2,3-b]furan-4,9-dione as an active ingredient.Said 2-(1-hydroxyethyl)-5-hydroxynaphtho[2,3-b]furan-4,9-dione is obtained in 4 or 5 steps by using comparatively inexpensive 5 -hydroxynaphthalene-1,4-dione (also referred to as juglone) as a starting material.
    • 本发明提供了一种以高产率容易且廉价地制备外消旋物或光学活性的2-(1-羟基乙基)-5-羟基萘并[2,3-b]呋喃-4,9-二酮的方法,2-乙酰基 -2,3-二氢-5-羟基萘并[2,3-b]呋喃-4,9-二酮,其可用作制备NFD的中间体,以及抗癌剂,其包含2-(1-羟乙基)-5-羟基萘 [2,3-b]呋喃-4,9-二酮作为活性成分。 所述2-(1-羟基乙基)-5-羟基萘并[2,3-b]呋喃-4,9-二酮通过使用相对便宜的5-羟基萘-1,4-二酮(也称为 作为胡桃醇)作为原料。
    • 7. 发明申请
    • SPECTROPHOTOMETER AND METHOD FOR CALIBRATING THE SAME
    • 分光光度计及其校准方法
    • US20120250014A1
    • 2012-10-04
    • US13431718
    • 2012-03-27
    • Daisuke HayashiKatsumi Nishimura
    • Daisuke HayashiKatsumi Nishimura
    • G01J3/40
    • G01J3/42G01J3/28G01N21/274G01N21/276G01N21/3504
    • The disclosure provides a spectrophotometer, including a light source for irradiating light into a sample gas, a photodetector for detecting light transmitted through the sample gas, an optical filter, and an operation device for calculating a concentration of an actual gas to be measured, contained in the sample gas based on a detection signal value obtained from the photodetector. The operation device calculates the concentration of the actual gas based on function a for associating a concentration of a substitute gas with the actual gas obtained from a reference instrument, function β for associating a relation between a light absorption of the actual gas and the substitute gas in the reference instrument, with a relation between a light absorption of the actual gas the substitute gas in a calibration instrument, and a function indicating a relation between the concentration of the substitute gas and the detection signal value.
    • 本发明提供了一种分光光度计,包括用于将光照射到样气中的光源,用于检测透过样气的光检测器,滤光器和用于计算待测实际气体浓度的操作装置, 基于从光电检测器获得的检测信号值在样品气体中。 操作装置基于将替代气体的浓度与从参考仪器获得的实际气体相关联的函数a来计算实际气体的浓度,函数&bgr; 用于将实际气体的光吸收与参考仪器中的替代气体之间的关系与校准仪器中的替代气体的实际气体的吸光率和表示浓度之间的关系的函数相关联 替代气体和检测信号值。
    • 9. 发明授权
    • Spectrophotometer and method for calibrating the same
    • 分光光度计及其校准方法
    • US08629397B2
    • 2014-01-14
    • US13431718
    • 2012-03-27
    • Daisuke HayashiKatsumi Nishimura
    • Daisuke HayashiKatsumi Nishimura
    • G01J5/00
    • G01J3/42G01J3/28G01N21/274G01N21/276G01N21/3504
    • A spectrophotometer is provided, including a light source for irradiating light into a sample gas, a photodetector for detecting light transmitted through the sample gas, an optical filter, and an operation device for calculating a concentration of an actual gas to be measured, contained in the sample gas based on a detection signal value obtained from the photodetector. The operation device calculates the concentration of the actual gas based on function α for associating a concentration of a substitute gas with the actual gas obtained from a reference instrument, function β for associating a relation between a light absorption of the actual gas and the substitute gas in the reference instrument, with a relation between a light absorption of the actual gas the substitute gas in a calibration instrument, and a function indicating a relation between the concentration of the substitute gas and the detection signal value.
    • 提供一种分光光度计,包括用于将光照射到样品气体中的光源,用于检测透过样品气体的光的光电检测器,滤光器和用于计算被测量的实际气体的浓度的操作装置, 基于从光电检测器获得的检测信号值的样品气体。 操作装置基于函数α计算实际气体的浓度,用于将替代气体的浓度与从参考仪器获得的实际气体相关联,功能β用于将实际气体的光吸收与替代气体之间的关系 在参考仪器中,具有校准仪器中的替代气体的实际气体的光吸收与指示替代气体的浓度与检测信号值之间的关系的函数之间的关系。