The asymmetric reduction of symmetrical and nonsymmetrical diketones as well as the stereoselective oxidation of various diols by biocatalytic hydrogen transfer was investigated by employing lyophilized cells of Rhodococcus ruber DSM 44541 containing alcohol dehydrogense ADH-‘A’. Symmetrical and nonsymmetrical diketones at the (ω-1)- and (ω-2)-positions are reduced to the Prelog product with high stereopreference
通过使用含有
乙醇脱氢 ADH-'A' 的红球菌 DSM 44541 的冻干细胞,研究了对称和非对称二
酮的不对称还原以及通过
生物催化
氢转移对各种二醇的立体选择性
氧化。(ω-1)-和 (ω-2)-位置的对称和非对称二
酮被还原为具有高立体偏好的 Prelog 产物,而空间上要求更高的
酮部分,例如 (ω-3)-位置的那些,保持不变。对于
氧化模式,实现了伯醇和仲醇之间的区别,并且在(ω-1)-和(ω-2)-位的(S)构型的仲醇被优先
氧化。(© Wiley-
VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)