Process for the production of tibolone

Organic compounds -- part of the class 532-570 series – Organic compounds – Cyclopentanohydrophenanthrene ring system containing

Reexamination Certificate

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C514S178000

Reexamination Certificate

active

07884222

ABSTRACT:
A process for the syntheses of 17β-hydroxy-7α-methyl-19-nor-17α-pregn-5(10)-ene-20-yne-3-one (tibolone, 11) and intermediates useful for the synthesis thereof.

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