Monohalogenovinyl vitamin D derivative compounds

Details Monohalogenovinyl vitamin D derivative compounds Monohalogenovinyl vitamin D derivative compounds

2011-03-15

2011-03-15

Oh, Taylor Victor (Department: 1625)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

9,10-seco- cyclopentanohydrophenanthrene ring system doai

C552S653000

Reexamination Certificate

active

07906495

ABSTRACT:
New vitamin D derivative compounds containing a monohalovinyl moiety at position C-20 are described.A process for obtaining the new compounds, consisting of reacting an aldehyde precursor with a haloform in the presence of Cr2+salts, is also described.

REFERENCES:
patent: 4847012 (1989-07-01), DeLuca et al.
patent: 78704 (1983-05-01), None
patent: WO 9203414 (1992-03-01), None
patent: WO 2004037781 (2004-05-01), None
Database CA in STN, AN 106:83937 & Takai et al., J. American Chemical Society, vol. 108, n° 23, pp. 7408-7410, 1986. “Simple and selective method for aldehydes, conversion by means of a haloform-cormous chloride system”. Abstract.

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