Derivatives of 3-pyrrolidylidene-2-one-cephalsporines
    2.
    发明授权
    Derivatives of 3-pyrrolidylidene-2-one-cephalsporines 失效
    3-吡咯烷亚基-2-单头孢菌素的衍生物

    公开(公告)号:US5925632A

    公开(公告)日:1999-07-20

    申请号:US875563

    申请日:1997-07-25

    CPC分类号: C07D501/00 Y02P20/55

    摘要: Compounds of formula (I) ##STR1## wherein R.sup.1 is hydrogen, lower alkyl, aralkyl, cycloalkyl, R.sup.3 CO-- or --C(R.sup.4 R.sup.5)CO.sub.2 R.sup.6 ; where R.sup.4 and R.sup.5 are each independently hydrogen or lower alkyl, or R.sup.4 and R.sup.5 taken together with the carbon atom to which they are attached form a cycloalkyl group; R.sup.3 is hydrogen or lower alkyl and R.sup.6 is hydrogen, lower alkyl, lower alkenyl or a carboxylic acid protecting group;R.sup.2 is isobutyl, 2,2-dimethyl-propyl or cyclohexyl-methyl;n is 0, 1 or 2;X is CH or N;as well as readily hydrolyzable esters thereof, pharmaceutically acceptable salts of said compounds and hydrates of the compounds of formula I and of their esters and salts are disclosed. These compounds have valuable antibacterial activity.

    摘要翻译: PCT No.PCT / EP96 / 00667 Sec。 371日期1997年7月25日 102(e)日期1997年7月25日PCT提交1996年2月16日PCT公布。 公开号WO96 / 26943 日期:1996年9月6日,式(I)化合物,其中R1为氢,低级烷基,芳烷基,环烷基,R3CO-或-C(R4R5)CO2R6; 其中R 4和R 5各自独立地为氢或低级烷基,或者R 4和R 5与它们所连接的碳原子一起形成环烷基; R3是氢或低级烷基,R6是氢,低级烷基,低级烯基或羧酸保护基; R2是异丁基,2,2-二甲基 - 丙基或环己基 - 甲基; n为0,1或2; X是CH或N; 以及其易水解的酯,所述化合物的药学上可接受的盐和式I化合物及其酯和盐的水合物被公开。 这些化合物具有有价值的抗菌活性。

    Electric universal drive
    5.
    发明申请
    Electric universal drive 有权
    电动万能驱动

    公开(公告)号:US20110210647A1

    公开(公告)日:2011-09-01

    申请号:US13068203

    申请日:2011-05-05

    申请人: Hans Richter

    发明人: Hans Richter

    IPC分类号: H02N2/02 H02N2/10

    摘要: In a universal drive with a rotatable or linearly movable drive member and piezo actuators supported on a carrier for acting on a leg supported on the drive member and moving the leg in a high-frequency stepping sequence in a drive direction, wherein the carriers are jointly supported on a stator by a pretension member which biases them elastically toward the drive member via an elbow lever mechanism including a first elbow lever and at least a second elbow lever which are both connected to an actuator by a coupling member and this arrangement is such that, with the first elbow lever stretched, the second elbow lever is kinked and vice versa.

    摘要翻译: 在具有可旋转或可线性移动的驱动构件的通用驱动器和支撑在载体上的压电致动器用于作用在支撑在驱动构件上的腿上并以驱动方向的高频步进顺序移动腿,其中载体共同 通过预紧构件支撑在定子上,该预紧构件通过包括第一肘杆和至少第二肘杆的肘杆机构朝向驱动构件弹性地偏压,所述肘杆机构都通过联接构件连接到致动器,并且这种布置使得 第一肘杆拉伸,第二肘杆扭结,反之亦然。