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    • 2. 发明授权
    • Process for preparing cephalosporin derivatives
    • 制备头孢菌素衍生物的方法
    • US4046761A
    • 1977-09-06
    • US664056
    • 1976-03-04
    • Jan VerweijHong Sheng Tan
    • Jan VerweijHong Sheng Tan
    • C07D207/46C07D209/48C07D501/10C07D501/02A61K31/545
    • C07D209/48C07D207/46
    • Novel azetidine derivatives of the formula ##STR1## wherein R.sub.1 is an acylamido group, R.sub.2 is selected from the group consisting of ##STR2## wherein R.sub.4, R.sub.5 and R.sub.6 are individually selected from the group consisting of hydrogen, lower alkyl and lower alkenyl, n is 2 or 3 and -- in the case when formula IIB is a phenyl -- this group may carry 1 to 4 substituents selected from the group consisting of halogen, lower alkyl, lower alkenyl and phenyl, and R.sub.3 is lower alkyl optionally substituted with 1 or 2 phenyls which phenyl groups may be substituted with nitro and a process for their preparation and process for the preparation of cephalosporanic acid derivatives using the azetidines of formula I as intermediates.This is a division of Serial No. 547,948, filed Feb. 7, 1975 now Pat. No. 4,007,202.
    • 新颖的式Ⅰa的氮杂环丁烷衍生物,其中R1是酰氨基,R2选自由下列组成的组:其中R 4,R 5和R 6分别选自氢,低级 烷基和低级烯基,n为2或3, - 在式IIB为苯基的情况下,该基团可以携带1至4个选自卤素,低级烷基,低级烯基和苯基的取代基,且R3较低 任选被1或2个苯基取代的烷基,该苯基可以被硝基取代,其制备方法和使用式I的氮杂环丁烷作为中间体制备头孢烷酸衍生物的方法。
    • 9. 发明授权
    • Preparation of 7-substituted amino-desacetoxycephalosporanic acid
compounds
    • 7-取代氨基 - 脱乙酰氧基头孢烷酸化合物的制备
    • US4003894A
    • 1977-01-18
    • US574365
    • 1975-05-05
    • Jan VerweijHong Sheng TanHermanus Jacobus Kooreman
    • Jan VerweijHong Sheng TanHermanus Jacobus Kooreman
    • C07D501/10
    • C07D501/10
    • Process for the preparation of 7-substituted amino-desacetoxycephalosporanic derivatives comprising converting a 6-substituted amino-penicillanic acid sulfoxide into an anhydride of a 6-substituted amino-penicillanic acid sulfoxide, heating the said acid anhydride intermediate at a temperature up to at most 160.degree. C in a dry inert organic solvent with an anhydrous acid which is capable of causing ring expansion of the penam ring to a .DELTA..sup.3 -cephem ring, in the presence of a silicon-containing compound capable of (a) removing water formed during the ring enlargement of the penam structure fast enough to prevent water hydrolysis of the acid anhydride moiety present and (b) forming neutral or basic products on hydrolysis, the aforesaid acid being strong enough not to be, or not to a substantial extent to be, silylated under the reaction conditions employed, and hydrolyzing the resulting compound in situ to form the .DELTA..sup.3 -7-substituted amino-desacetoxycephalosporanic acid as such or as a salt, such as alkali metal, alkaline earth metal or amine salt and to the novel sulfoxide acid anhydrides formed therein.
    • 用于制备7-取代的氨基 - 脱乙酰氧基头孢烷衍生物的方法,包括将6-取代的氨基 - 青霉烷酸亚砜转化为6-取代的氨基 - 青霉烷酸亚砜的酸酐,将所述酸酐中间体加热至多至多 160℃在干燥惰性有机溶剂中与无水酸反应,该无水酸能够在含硅化合物的存在下使Penam环环化为DELTA 3-头孢烯环,所述含硅化合物能够(a)除去在 阳离子结构的环扩大足够快以防止存在的酸酐部分的水解,和(b)在水解时形成中性或碱性产物,上述酸足够强,不大或不在很大程度上是 在所用的反应条件下甲硅烷基化,并原位水解所得化合物,形成DELTA 3-7-取代的氨基 - 脱乙酰氧基头孢烷酸,或者如 盐,如碱金属,碱土金属或胺盐,以及其中形成的新的亚砜酸酐。
    • 10. 发明授权
    • Adjusting device
    • 调整装置
    • US08276526B2
    • 2012-10-02
    • US12937452
    • 2009-04-09
    • Jan Verweij
    • Jan Verweij
    • A47B9/00
    • A47B9/20A47B9/04
    • An adjusting device having an inner tubular body, an outer tubular body configured to slide concentrically over the inner tubular body such that the inner tubular body and the outer tubular body can slide telescopically from a retracted position to an extended position. An actuator is configured to move the inner tubular body and the outer tubular body along the longitudinal axis in relation to one another and a supporting tube is provided and configured to slide concentrically on the inside of the outer tubular body.
    • 一种调节装置,其具有内部管状体,外部管状体构造成同心地在内部管状体上滑动,使得内部管状体和外部管状体可以从缩回位置伸缩地滑动到延伸位置。 致动器构造成使内管状体和外管体相对于彼此的纵向轴线移动,并且提供支撑管并构造成同心地在外管体的内侧滑动。