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对称三酮2a,2b经啤酒酵母菌(2.346)不对称还原获得了光学活性化合物6a,6b,6a或6b的苯溶液在中性氧化铝中发生分子内的氧化还原反应而生成光学纯化合物15a及15b.
Symmetric triketones 2a, 2b asymmetrically reduced by Saccharomyces cerevisiae (2.346) gave a benzene solution of optically active compound 6a, 6b, 6a or 6b in an intramolecular redox reaction in neutral alumina to give optically pure compound 15a And 15b.