Processes for preparation of 9,11-epoxy steroids and...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C540S044000

Reexamination Certificate

active

07112669

ABSTRACT:
Intermediates in the preparation of 9,11-epoxy steroids are disclosed. Particularly, disclosed are 11,12-epoxy steroid, 4,5-9,11-diepoxy steroid and 12-keto steroid intermediates.

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