Enantioselective Synthesis of (<i>R</i>)- and (<i>S</i>)-Cizolirtine; Application of Oxazaborolidine-Catalyzed Asymmetric Borane Reduction to Azolyl Phenyl Ketones
作者:Antoni Torrens、José A. Castrillo、Alex Claparols、Jordi Redondo
DOI:10.1055/s-1999-2712
日期:1999.6
An efficient enantioselective synthesis of (R)- and (S)-cizolirtine 1 is described. The key step of the procedure is the CBS-oxazaborolidine asymmetric reduction of phenyl pyrazolyl ketone 2. Related enantioselective reductions of several azolyl phenyl ketones are also reported.
描述了一种高效的(R)-和(S)-cizolirtine 1的对映选择性合成方法。该过程的关键步骤是利用CBS-oxazaborolidine不对称还原苯基吡唑基酮2。同时还报道了其他几种含氮杂环苯基酮的对映选择性还原反应。