Intermediates for the synthesis of benzimidazole derivatives and a process for the preparation thereof
    1.
    发明授权
    Intermediates for the synthesis of benzimidazole derivatives and a process for the preparation thereof 失效
    用于合成苯并咪唑衍生物的中间体及其制备方法

    公开(公告)号:US06753347B2

    公开(公告)日:2004-06-22

    申请号:US10272133

    申请日:2002-10-16

    IPC分类号: A61K3121

    摘要: This invention provides a process for the preparation of a benzimidazole derivative (I) or a pharmaceutically acceptable salt thereof, wherein R1 is C1-C6 alkyl, C1-C6 alkoxyl, etc., R2 is C1-C6 alkyl, and R3 is hydrogen or a protecting group, which exhibits excellent hyopoglycemic action, said process comprising condensation of an amine derivative (III) with a carboxylic acid derivatives (II) to afford a compound (IV), followed by cyclization of compound (IV) in the presence of an acid.

    摘要翻译: 本发明提供了制备苯并咪唑衍生物(I)或其药学上可接受的盐的方法,其中R 1是C 1 -C 6烷基,C 1 -C 6烷氧基等,R 2是C 1 -C 6烷基 ,并且R 3是氢或保护基,其表现出优异的血压作用,所述方法包括将胺衍生物(III)与羧酸衍生物(II)缩合,得到化合物(IV),然后环化 化合物(Ⅳ)在酸存在下反应。

    Road marking composition
    2.
    发明授权
    Road marking composition 失效
    路标组成

    公开(公告)号:US4301050A

    公开(公告)日:1981-11-17

    申请号:US157739

    申请日:1980-06-09

    CPC分类号: C09D5/004

    摘要: A road marking composition comprising a resin having a melt viscosity of from about 30 to 80 cps at 150.degree. C. and a modifier composed of at least one metal oxide of at least one metal selected from Groups II and IV of short form of the Periodic Table. The resin may be rosin-modified maleic resin, hydrogenated resin, rosin ester, polyamide, and petroleum resin. Optionally, a polar wax and/or a surfactant may be present. Fillers and extenders include: pigments, glass beads, clay, plaster, slaked lime, alumina diatomaceous earth, sand, and plasticizers.

    摘要翻译: 一种道路标线组合物,其包含在150℃下具有约30至80cps的熔体粘度的树脂和由至少一种金属氧化物组成的改性剂,所述金属氧化物选自短周期的第二和第四组中的至少一种金属 表。 树脂可以是松香改性马来酸树脂,氢化树脂,松香酯,聚酰胺和石油树脂。 任选地,可以存在极性蜡和/或表面活性剂。 填料和增量剂包括:颜料,玻璃珠,粘土,石膏,熟石灰,氧化铝硅藻土,砂和增塑剂。