利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.047 秒)

    Process for chiral 3-(1-amino-1,1-bisalkylmethyl)-1-substituted-pyrrolidines
    2.
    发明授权
    Process for chiral 3-(1-amino-1,1-bisalkylmethyl)-1-substituted-pyrrolidines 失效
    手性3-（1-氨基-1,1-双烷基甲基）-1-取代吡咯烷的方法

    公开(公告)号：US5347017A

    公开(公告)日：1994-09-13

    申请号：US88464

    申请日：1993-07-07

    申请人： Victor Fedij ,  Mark J. Suto ,  James N. Wemple ,  James R. Zeller

    发明人： Victor Fedij ,  Mark J. Suto ,  James N. Wemple ,  James R. Zeller

    IPC分类号： C07D207/09 ,  C07D207/50

    CPC分类号： C07D207/09

    摘要： The process for the preparation of chiral 3-(1-amino-1,1-bisalkylmethyl)-1-substituted-pyrrolidines used as key intermediates for the preparation of naphthyridine and quinolone antibacterial agents which comprises reacting readily available chiral 1-substituted-3-pyrrolidinols to their corresponding chiral sulfonate esters; converting the sulfonate esters to chiral 1-substituted-3-cyanopyrrolidines having an inverse configuration, and then dialkylating the chiral cyanopyrrolidines with alkyl lithium in the presence of a Lewis acid without racemization at the asymmetric carbon atom is described.

    摘要翻译： 用作制备萘啶和喹诺酮抗菌剂的关键中间体的手性3-（1-氨基-1,1-双烷基甲基）-1-取代吡咯烷的制备方法，其包括使容易获得的手性1-取代-3 - 吡咯烷醇与其相应的手性磺酸酯; 将磺酸酯转化成具有相反构型的手性1-取代-3-氰基吡咯烷酮，然后在不对称碳原子下进行外消旋化的路易斯酸存在下，用烷基锂二烷基化手性氰基吡咯烷。

    Active armor
    6.
    发明授权
    Active armor 失效
    主动装甲

    公开(公告)号：US4545286A

    公开(公告)日：1985-10-08

    申请号：US620509

    申请日：1984-06-14

    申请人： Victor Fedij

    发明人： Victor Fedij

    IPC分类号： F41H5/013 ,  F41H5/02 ,  F41H5/04

    CPC分类号： F41H5/007 ,  F41H5/013 ,  F41H5/023 ,  F41H5/0414 ,  F41H5/0421 ,  Y10S428/911

    摘要： This disclosure depicts a novel apparatus for providing protection to armored personnel carriers such as tanks, or other military vehicles. The invention comprises a series of rectangular armor plates mounted to the surface area of the vehicle. The armor plates adjacent one another and each plate is secured to the tank surface by a threaded fastener. The threaded fasteners maintain the plates a predetermined distance from the tank surface and maintains the plates in a substantially parallel relationship to the surface of the tank wall. Each plate has three separate tiles adhered together, one tile comprising a steel material, one tile a soft material and one tile a thermally dissipating ceramic. The means for mounting the plates to the tank surface are designed such that the energy required to break the threaded fastener upon impact by a projectile is less than the energy required for the projectile to penetrate the plate.

    摘要翻译： 本公开描述了一种用于为装甲运兵车（例如坦克或其他军用车辆）提供保护的新型装置。 本发明包括安装在车辆表面区域上的一系列矩形装甲板。 铠装板彼此相邻，每个板通过螺纹紧固件固定到罐表面。 螺纹紧固件将板保持与罐表面预定距离，并将板保持在与罐壁表面基本平行的关系。 每个板具有粘合在一起的三个独立的瓦片，一个瓦片包括钢材料，一个瓦片是软材料，一个瓦片是散热陶瓷。 用于将板安装到罐表面的装置被设计成使得在弹丸撞击时将螺纹紧固件打破所需的能量小于射弹穿透板所需的能量。