Process for the preparation of pure Finasteride

Details Process for the preparation of pure Finasteride Process for the preparation of pure Finasteride

2007-01-16

2007-01-16

Aulakh, Charanjit S. (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C546S061000

Reexamination Certificate

active

11252860

ABSTRACT:
The present invention relates to an improved process for the preparation of pure Finasteride of Formula I,which comprises converting dihydrofinasteride to finasteride through novel protected dihydrofinasteride and protected finasteride intermediates.

REFERENCES:
patent: 5084574 (1992-01-01), Bhattacharya et al.

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