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公开(公告)号：US20200140830A1
公开(公告)日：2020-05-07
申请号：US16620525
申请日：2018-04-13
摘要： A Bradyrhizobium monooxygenase, a gene for encoding the monooxygenase, a recombinant expression vector comprising the gene and a recombinant transformant, a method of preparing the monooxygenase by the recombinant expression transformant, and a method of preparing an optically pure chiral sulfoxide by the monooxygenase, in particular to a method of preparing prazole drugs by means of catalyzing the asymmetric oxidation of thioether, a prazole precursor. As compared with other methods of preparing an optically pure sulfoxide, the product produced by the monooxygenase of the present invention as a catalyst has high optical purity, avoids the generation of the byproduct sulfone, and has advantages of mild reaction conditions, simple and convenient operations, easy amplification, etc.
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公开(公告)号：US20220002684A1
公开(公告)日：2022-01-06
申请号：US17294424
申请日：2019-11-26
摘要： A monooxygenase having an amino acid sequence obtained by mutation of the amino acid sequence shown in SEQ ID NO:2 is disclosed. The use of the monooxygenase of the present invention in production of chiral sulfoxide-based drugs has advantages including mild reaction conditions, environmental friendliness, high yield, high optical purity of products, less peroxide products, and the like, and therefore the monooxygenase in the present invention has a good industrial application prospect in the production of proton pump inhibitors for the treatment of gastric ulcers.
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