| 摘要 |
The invention relates to a process for the production of compounds of general formula (I), wherein R1 is a -NH-tert-butyl group or a 4-methyl-piperidino group, by bioconversion of compounds of general formula (II), wherein R1 is as described above, using a biocatalyst having steroid-Delta<1>-dehydrogenase enzyme activity, wherein the activity of the enzyme needed for the bioconversion is produced by induction.
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