FIELD: chemistry.
SUBSTANCE: invention relates to methods and intermediates for the preparation of spiroindolone compounds, such as (1'R,3'S)-5,7'-dichloro-6'-fluoro-3'-methyl-2',3',4',9'-tetrahydrospiro[indoline-3,1'-pyrido[3,4-b]indol-2-one, and their salts, hydrates and solvates. Method comprises enzymatic transamination of a compound of formula I into a compound of formula II using an enzyme represented by SEQ ID NO:134. (II) (I).
EFFECT: method makes it possible to increase the synthesis efficiency of the chiral amine intermediate.
12 cl, 12 ex
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Authors
Dates
2018-07-31—Published
2013-03-22—Filed