Enantioselective Desymmetrization of <i>cis</i>-3,5-<i>O</i>-Arylidenecyclohexanones Catalyzed by <i>Cinchona-</i>Derived Quaternary Ammonium Salts
作者:Mauro Cortigiani、Andrea Mereu、Malachi Gillick Healy、Mauro F. A. Adamo
DOI:10.1021/acs.joc.9b00108
日期:2019.4.5
enantioselective protocol for the desymmetrization of cis-3,5-O-arylidenecyclohexanones has been developed that proceeded under the catalysis of readily available and inexpensive Cinchona-derived quaternary ammonium salts. The synthetic relevance of the methodology was exemplified by the synthesis of a key intermediate that could be used in the preparation of the active pharmaceutical ingredient, paricalcitol
已经开发了用于顺式-3,5- O-亚芳基环己酮的去对称化的对映选择性方案,该方案在容易获得和廉价的金鸡纳衍生的季铵盐的催化下进行。该方法的合成相关性可以通过合成关键中间体来举例说明,该中间体可以用于制备活性药物成分帕立骨化醇(Zemplar)。