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    • 3. 发明授权
    • Process for preparing acetonides
    • 丙酮化合物的制备方法
    • US06482952B2
    • 2002-11-19
    • US09883417
    • 2001-06-18
    • Steven J. CianciosiGregory L. TewaltEric T. PiskIlia A. ZavialovGlenn A. Hulvey
    • Steven J. CianciosiGregory L. TewaltEric T. PiskIlia A. ZavialovGlenn A. Hulvey
    • C07D26352
    • C07D263/52
    • Acetonides are obtained in a one-step reaction of a carboxylic acid halide, a 1,2-aminoalcohol, and 2-alkoxypropene or 2,2-dialkoxypropane in an ether solvent and in the presence of an inorganic base. Acetonides are also obtained in a two-step reaction scheme in which an acid halide and 1,2-aminoalcohol are reacted in an ether solvent in the presence of LiOH to form a hydroxyamide, which is then reacted with 2-alkoxypropene or 2,2-dialkoxypropane in the presence of acid to form the acetonide. The acetonides resulting from the one-step and two-step protocols can be further reacted with an allylating agent such as an allyl halide in the presence of a strong base to provide the corresponding allyl acetonide. The acetonides and allyl acetonides can serve as intermediates in the production of certain HIV protease inhibitors which are useful for treating HIV infection and AIDS.
    • 在醚溶剂中和无机碱的存在下,在羧酸卤化物,1,2-氨基醇和2-烷氧基丙烯或2,2-二烷氧基丙烷的一步反应中获得乙氧基化物。 乙酸酯也是以两步反应方案获得的,其中酰卤和1,2-氨基醇在醚溶剂中在LiOH存在下反应形成羟基酰胺,然后与2-烷氧基丙烯或2,2 二烷氧基丙烷在酸存在下形成丙酮化合物。 由一步法和两步法得到的丙酮化合物可以在强碱存在下与烯丙基化剂如烯丙基化物进一步反应,得到相应的烯丙基丙酮化合物。 丙酮化合物和烯丙基丙酮化物可用作生产某些可用于治疗艾滋病毒和艾滋病的HIV蛋白酶抑制剂的中间体。