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    • 4. 发明授权
    • Manufacturing process for 8-aryloctanoic acids such as Aliskiren
    • 8-阿糖辛酸如阿利吉仑的制备方法
    • US08703976B2
    • 2014-04-22
    • US13337071
    • 2011-12-24
    • Milan Soukup
    • Milan Soukup
    • C07D307/00
    • C07D307/33
    • The present invention relates to a novel manufacturing process and novel intermediates useful in the synthesis of pharmaceutically active compound such as Aliskiren.The invention describes preparation of enantiomerically pure 8-aryloctanoic acid of formula I from a chiral compound of formula IV. Friedel-Crafts reaction of this compound of formula IV with a compound of formula III provides compound of formula II which is converted reductively in a few steps into the compound of formula V, a know intermediate in the synthesis of compound of formula I. According to the disclosed process, Aliskiren can be now prepared from commercial starting materials (Guajacol or 2-bromoanisole, cis- or trans-1,4-dichloro-2-butene and 4(S)-benzyl-3-isovaleroyl-oxazolidin-2-one) in less than 8 process steps.
    • 本发明涉及可用于合成药物活性化合物如阿利吉仑的新型制备方法和新型中间体。 本发明描述了由式IV的手性化合物制备式I的对映体纯的8-芳酸辛酸。 该式IV化合物与式III化合物的Friedel-Crafts反应提供式II化合物,其在几步中还原转化成式V化合物,其是式I化合物合成中的已知中间体。根据 所公开的方法,阿利吉仑现在可以由商业原料(Guajacol或2-溴苯甲醚,顺式或反式-1,4-二氯-2-丁烯和4(S) - 苄基-3-异戊酰基 - 恶唑烷-2-酮 一个)在不到8个过程步骤。