The present invention relates to non-naturally occurring polypeptides useful for preparing armodafinil, polynucleotides encoding the polypeptides, and methods of using the polypeptides. The non-naturally occurring polypeptides of the present invention are effective in carrying out biocatalytic conversion of the (i) 2-(benzhydrylsulfinyl)acetamide to (−)-2-[(R)-(diphenylmethyl)sulfinyl]acetamide (armodafinil), or (ii) benzhydryl-thioacetic acid to (R)-2-(benzhydrylsulfinyl)acetic acid, which is a pivotal intermediate in the synthesis of armodafinil, in enantiomeric excess.
本发明涉及可用于制备 armodafinil 的非天然
多肽、编码该
多肽的多核苷酸以及使用该
多肽的方法。本发明的非天然
多肽可有效地将(i) 2-(苯甲基亚磺酰基)乙酰胺
生物催化转化为(-)-2-[(R)-(二苯基甲基)亚磺酰基]乙酰胺(armodafinil)、或 (ii) 苯氢
硫乙酸对映体过量转化为(R)-2-(苯氢亚磺酰基)
乙酸,后者是合成 armodafinil 的关键中间体。