Microparticles that contain gas, galactose and a saturated fatty acid
    3.
    发明授权
    Microparticles that contain gas, galactose and a saturated fatty acid 失效
    含有气体,半乳糖和饱和脂肪酸的微粒

    公开(公告)号:US06306366B1

    公开(公告)日:2001-10-23

    申请号:US09129953

    申请日:1998-08-06

    IPC分类号: A61B800

    摘要: Compositions containing microparticles having at least one surface-active substance and at least one non-surface-active solid with a gaseous component containing a halogenated hydrocarbon that is gaseous at body temperature, wherein the gaseous component is more poorly water-soluble than air. Also, ultrasonic contrast media containing such composition, processes for their production, kits for their production and methods of use.

    摘要翻译: 含有具有至少一种表面活性物质的微粒和至少一种含有含有在体温下为气态的卤代烃的气态成分的非表面活性固体的组合物,其中气态组分比空气更难溶于水。 此外,含有这种组合物的超声波造影剂,其生产方法,用于其生产的试剂盒和使用方法。

    Process for the preparation of &agr;-haloketones
    10.
    发明授权
    Process for the preparation of &agr;-haloketones 失效
    α-卤代酮的制备方法

    公开(公告)号:US06667422B2

    公开(公告)日:2003-12-23

    申请号:US10233925

    申请日:2002-09-03

    IPC分类号: C07C4563

    摘要: A process for preparing an &agr;-haloketone of the formula (1) where R1 is an optionally heteroatom-containing and optionally substituted hydrocarbon radical, R2 is a hydrogen, alkyl, aralkyl or aryl radical, and X is a halogen radical, by reacting a carboxylic acid derivative of the general formula (2) where L is a leaving group, with a mono- or dienolate of a silyl ester of the formula (3) where R3 and R4 are identical or different alkyl, aryl, alkenyl or aralkyl radicals; and hydrolyzing the reaction product immediately afterwards by adding acid and decarboxylating to (1). The product &agr;-haloketone may be reduced to the corresponding &agr;-haloalcohol.

    摘要翻译: 制备式(1)的α-卤代酮的方法,其中R 1是任选含杂原子的和任选取代的烃基,R 2是氢,烷基,芳烷基或芳基,X是卤素 自由基,其中L是离去基团的通式(2)的羧酸衍生物与式(3)的甲硅烷基酯的单或二烯醇酯反应,其中R 3和R 4相同 或不同的烷基,芳基,烯基或芳烷基;然后通过加入酸和脱羧至(1),立即水解反应产物。 产物α-卤代酮可以还原成相应的α-卤代醇。