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    • 1. 发明申请
    • Methods of synthesis of morphinans
    • 吗啡的合成方法
    • US20090318699A1
    • 2009-12-24
    • US12143608
    • 2008-06-20
    • John A. Lawson
    • John A. Lawson
    • C07D489/00
    • C07D489/04
    • The disclosure describes morphinan compounds and methods for their synthesis. Preferred methods according to the disclosure allow for large-scale preparation of diastereomerically enriched morphinans. Preferred methods according to the disclosure may also allow for the preparation of diastereomerically enriched morphinans using less time, and/or using fewer reaction steps, and/or providing better yield than previously used methods for preparing morphinans. The methods disclosed herein find utility in synthetic organic chemistry as well as medicinal chemistry.
    • 本公开描述了吗啡喃化合物及其合成方法。 根据本公开的优选方法允许大规模制备非对映体富集的吗啡喃。 根据本公开的优选方法还可以允许使用更少的时间和/或使用更少的反应步骤和/或提供比以前使用的制备吗啡喃的方法更好的产量来制备非对映体富集的吗啡喃。 本文公开的方法可用于合成有机化学以及药物化学。
    • 9. 发明授权
    • Benzomorphans useful as NMDA receptor antagonists
    • Benzomorphans可用作NMDA受体拮抗剂
    • US5354758A
    • 1994-10-11
    • US991365
    • 1992-12-16
    • John A. LawsonItsuo Uchida
    • John A. LawsonItsuo Uchida
    • C07D221/26A61K31/445
    • C07D221/26
    • Compounds of the formula I ##STR1## are disclosed. In this formula, R is a member selected from the group consisting of --CR.sub.1 R.sub.2 R.sub.3, hydroxy, an alkoxy group having 1 to 4 carbon atoms and --NR.sub.4 R.sub.5, in which at most one of R.sub.1, R.sub.2 and R.sub.3 is hydrogen and the remainder are each independently selected from the group consisting of an alkyl group having 1 to 4 carbon atoms, an alkenyl group having 2 to 4 carbon atoms, an alkynyl group having 2 to 4 carbon atoms, a cycloalkyl group having 3 to 7 carbon atoms, a cycloalkylalkyl having 4 to 9 carbon atoms and a 3 to 6 membered cyclic ether; R.sub.4 and R.sub.5 are each independently hydrogen or an alkyl group having 1 to 4 carbon atoms; R.sub.6 and R.sub.7 are each independently hydrogen or an alkyl group having 1 to 4 carbon atoms; and R.sub.8 is hydrogen, an alkyl group having 1 to 4 carbon atoms, hydroxy, an alkoxy group having 1 to 4 carbon atoms or halogen. Salts of these compounds are also disclosed. Also disclosed are pharmaceutical compositions of these compounds with a pharmaceutically acceptable carrier, the use of these materials as N-methyl-D-aspartate receptor antagonists, processes for preparing these compounds and salts, and methods to treat cerebral diseases by administering an effective amount of these compounds, salts or compositions.
    • 公开了式I的化合物。 在该式中,R是选自-CR 1 R 2 R 3,羟基,具有1至4个碳原子的烷氧基和-NR 4 R 5的成员,其中R 1,R 2和R 3中至多一个是氢,其余各自是 独立地选自碳原子数1〜4的烷基,碳原子数2〜4的烯基,碳原子数2〜4的炔基,碳原子数3〜7的环烷基,环烷基烷基, 4至9个碳原子和3至6元环醚; R4和R5各自独立地为氢或具有1至4个碳原子的烷基; R6和R7各自独立地为氢或具有1至4个碳原子的烷基; R8为氢,碳原子数为1〜4的烷基,羟基,碳原子数1〜4的烷氧基或卤素。 还公开了这些化合物的盐。 还公开了具有药学上可接受的载体的这些化合物的药物组合物,这些材料用作N-甲基-D-天冬氨酸受体拮抗剂,制备这些化合物和盐的方法,以及通过施用有效量的 这些化合物,盐或组合物。
    • 10. 发明授权
    • Multiple image transfer camera system
    • 多图像传输摄像系统
    • US5055863A
    • 1991-10-08
    • US546099
    • 1990-06-29
    • Jerome W. LindenfelserJohn A. Lawson
    • Jerome W. LindenfelserJohn A. Lawson
    • G03B17/48G03B19/12
    • G03B17/48G03B19/12
    • A camera system for the simultaneous and substantially exact capturing of images of a subject on separate image reproduction mediums wherein an optical member is interposed between a lens group and a pair of separate, discrete image receiving mediums. One of the mediums is a photographic film and the other is a viewing screen for personal viewing or, alternatively, an electronic system for electronic signal generation, electronic viewing and electronic capture of the image. The optical member allows light rays emanating from the object to pass therethrough to impinge upon one of the mediums while simultaneously reflecting light rays to the second medium. This system allows for the simultaneous transfer and reproduction of the object image onto more than one medium without degradation of the image or depth of field. The system accomplishes the multiple image transfer through a stationary device, thereby eliminating the necessity of moving parts. The system also eliminates problems resulting from refractions of light normally accompanying light ray direction control devices.
    • 一种相机系统,用于在单独的图像再现介质上同时且基本上精确地拍摄被摄体的图像,其中光学构件插入在透镜组和一对分离的离散图像接收介质之间。 其中一种媒体是摄影胶片,另一种是用于个人观看的观看屏幕,或者替代地,用于电子信号产生,电子观看和电子捕获图像的电子系统。 光学构件允许从物体发出的光线通过其中以撞击在一种介质上,同时将光线反射到第二介质。 该系统允许将对象图像同时传送和再现到多于一种介质上,而不会降低图像或景深。 该系统通过固定装置实现多次图像传输,从而消除了移动部件的必要性。 该系统还消除了通常伴随光线方向控制装置的光的折射引起的问题。