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公开(公告)号：US06525205B2
公开(公告)日：2003-02-25
申请号：US10117580
申请日：2002-04-05
IPC分类号： C07D30930
CPC分类号： C07D309/30
摘要： Crystalline 3-hydroxylactone-containing products can be prepared in high yield and purity in a one-pot process by treating the corresponding 3,5-dihydroxy acid with a strong mineral acid in a cold, aprotic, water-miscible solvent to effect lactonization, followed by addition of excess acid to effect crystallization of the lactonized product from the reaction mixture.
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公开(公告)号：US06380401B1
公开(公告)日：2002-04-30
申请号：US09694190
申请日：2000-10-23
IPC分类号： C07D30930
CPC分类号： C07D309/30
摘要： Crystalline 3-hydroxylactone-containing products can be prepared in high yield and purity in a one-pot process by treating the corresponding 3,5-dihydroxy acid with a strong mineral acid in a cold, aprotic, water-miscible solvent to effect lactonization, followed by addition of excess acid to effect crystallization of the lactonized product from the reaction mixture.
摘要翻译： 含有3-羟基内酯的结晶产物可以在一锅法中以高产率和纯度制备，通过在冷的非质子，水混溶性溶剂中用强无机酸处理相应的3,5-二羟基酸以进行内酯化， 然后加入过量的酸，以使内酯化产物从反应混合物中结晶。
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公开(公告)号：US07006823B2
公开(公告)日：2006-02-28
申请号：US10344240
申请日：2001-08-09
CPC分类号： H04B7/005 , H04B1/1027
摘要： A receiver comprising means for receiving a first plurality of signals at different frequencies at substantially the same time; and means for comparing a wanted signal at a first frequency with at least one other signal at a frequency similar to that of said wanted signal to provide a measure of interference provided by said at least one other signal.
摘要翻译： 一种接收机，包括用于在基本上同时接收不同频率的第一多个信号的装置; 以及用于将第一频率的有用信号与与所述有用信号的频率相似的频率与至少一个其它信号进行比较以提供由所述至少一个其它信号提供的干扰的量度的装置。
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公开(公告)号：US20060155270A1
公开(公告)日：2006-07-13
申请号：US10536721
申请日：2003-11-27
CPC分类号： A61B18/18 , A61B18/1815 , A61B2018/00642 , A61B2018/00702 , A61B2018/00755 , A61B2018/00779 , A61B2018/00869 , A61B2018/00875 , H05B6/686 , H05B6/705 , H05B6/806
摘要： An apparatus and method for ablating tissue is disclosed. The apparatus comprises a source of microwave radiation (1), a probe (5) for directing the microwave radiation into tissue, one or more detectors for detecting the power and phase of the microwave radiation and an impedance adjuster (50) for adjusting impedance so as to minimize the amount of microwave radiation which reflected back through the probe. The detector or detectors use a local oscillator (230) to derive the phase information. A modulator for modulating the microwave radiation to a cutting frequency is also disclosed.
摘要翻译： 公开了一种用于消融组织的装置和方法。 该装置包括微波辐射源（1），用于将微波辐射引导到组织中的探针（5），用于检测微波辐射的功率和相位的一个或多个检测器和用于调节阻抗的阻抗调节器（50） 以便最小化通过探针反射回的微波辐射的量。 检测器或检测器使用本地振荡器（230）来导出相位信息。 还公开了一种用于将微波辐射调制到切割频率的调制器。
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