Process for the preparation of fluorotetraene

Details Process for the preparation of fluorotetraene Process for the preparation of fluorotetraene

2008-03-21

2011-11-01

Badio, Barbara P (Department: 1628)

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

Organic compounds

Cyclopentanohydrophenanthrene ring system containing

Reexamination Certificate

active

08049021

ABSTRACT:
There is provided a process for preparing 21-acetyloxy-6-alpha-fluoro-pregna-1,4,9(11),16-tetraene-3,20-dione compound of Formula I, which comprises reacting 21-acetyloxy-pregna-1,3,5,9(11),16-pentaene-3-oxo acetate with a fluorinating agent.

REFERENCES:
patent: 3210341 (1965-10-01), Lincoln et al.
patent: 4524134 (1985-06-01), Kominek et al.
patent: 03/082896 (2003-10-01), None
J.S. Mills, A. Bowers, C. Djerassi and H.J. Ringold, J. Am. Chem. Soc. 82, 3399 (1960).

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