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    • 3. 发明授权
    • Liquid dispensing device and methods utilizing a uniaxial mounting
    • 液体分配装置和利用单轴安装的方法
    • US6123302A
    • 2000-09-26
    • US183518
    • 1998-10-30
    • Edward C. Taylor
    • Edward C. Taylor
    • B05B15/06B05C5/02B65B59/04A47B96/06
    • B05B15/061B05C5/02B65B59/04
    • A uniaxial mounting for dispensing apparatus includes one or more uniaxial connecting portions on a dispenser and at least one support member having at least one complementary uniaxial mounting portion. The uniaxial mounting portions may include projections and generally complementary channels allowing rapid installation, removal and replacement of the dispenser. The support member may include a locking pivot for further adjustment capability. When dispensing heated liquids, a thermal insulator is incorporated to reduce heat conduction between the dispenser and the support member. The uniaxial mounting may have an alignment guide to ensure proper positioning of the dispenser along the axis of engagement between the uniaxial connecting portions.
    • 用于分配装置的单轴安装包括分配器上的一个或多个单轴连接部分和具有至少一个互补单轴安装部分的至少一个支撑构件。 单轴安装部分可以包括突起和通常互补的通道,允许分配器的快速安装,移除和更换。 支撑构件可以包括用于进一步调节能力的锁定枢轴。 当分配加热的液体时,结合了绝热体以减少分配器和支撑构件之间的热传导。 单轴安装件可以具有对准引导件,以确保分配器沿着单轴连接部分之间的接合轴线的适当定位。
    • 4. 发明授权
    • Process for the preparation of pyrrolo[2,3-d]pyrimidines
    • 制备吡咯并[2,3-d]嘧啶的方法
    • US06066732A
    • 2000-05-23
    • US138354
    • 1998-08-21
    • Edward C. TaylorBin Liu
    • Edward C. TaylorBin Liu
    • C07D487/04C07D239/47C07D239/48
    • C07D487/04
    • 4(3H)-X-7H-Pyrrolo[2,3-d]pyrimidines in which X is .dbd.O or .dbd.NH are prepared by treating a 6-amino-4(3H)-X-pyrimidine with a unsubstituted or substituted 1-nitroalk-1-ene to yield a 6-amino-4(3H)-X-pyrimidine which is substituted in the 5-position by a 1-nitroalk-2-yl group; (ii) converting the 5-(1-nitroalk-2-yl)-6-amino-4(3H)-X-pyrimidine to the corresponding 5-(1-oxoalk-2-yl)-6-amino-4(3H)-X-pyr-imidine; and (iii) removing the elements of water from the 5-(1-oxoalk-2-yl)-6-amino-4(3H)-X-pyrimidine to effect cyclization. A typical embodiment involves treating 2,6-diamino-4(3H)-pyrimidone with 1-nitro-4-(4-ethoxycarbonylphenyl)-1-butene to yield 1 -nitro-2-(2,6-diamino-4(3H)-oxopyrimidin-5-yl)-4-(4-ethoxy-carbonylphenyl)butane which is then treated sequentially with base and acid, without isolation of the intermediate aldehyde, to form 4-[2-(2-amino-4(3H)-oxo-7H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoic acid, a valuable known chemical intermediate for the preparation of N-[4-{2-(2-hydroxy-4-amino-7H-pyrrolo[2,3-d]-pyrimidin-5-yl)ethyl}benzoyl]glutamic acid.
    • 通过用未取代的或取代的1位的6-氨基-4(3H) - 嘧啶处理制备X(= O或= NH)的4(3H) - 7H-吡咯并[2,3-d] - 硝基-1-烯,得到6-位氨基-4(3H) - 嘧啶,其在5-位被1-硝基烷基-2-基取代; (ii)将5-(1-硝基烷基-2-基)-6-氨基-4(3H) - 嘧啶转化成相应的5-(1-氧代-2-基)-6-氨基-4( 3H)-X-吡啶亚胺; 和(iii)从5-(1-氧代-2-基)-6-氨基-4(3H)-X-嘧啶中除去水元素以进行环化。 典型的实施方案涉及用1-硝基-4-(4-乙氧基羰基苯基)-1-丁烯处理2,6-二氨基-4(3H) - 嘧啶酮,得到1-硝基-2-(2,6-二氨基-4 3H) - 氧代嘧啶-5-基)-4-(4-乙氧基 - 羰基苯基)丁烷,然后用碱和酸依次处理,而不分离中间体醛,形成4- [2-(2-氨基-4 (3H) - 氧代-7H-吡咯并[2,3-d]嘧啶-5-基)乙基]苯甲酸是一种有价值的已知化学中间体,用于制备N- [4- {2-(2-羟基-4 - 氨基-7H-吡咯并[2,3-d] - 嘧啶-5-基)乙基}苯甲酰基]谷氨酸。