Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1984-11-01
1985-11-19
Roberts, Elbert L.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
C07J 900
Patent
active
045541060
ABSTRACT:
The invention relates to a process for separating 1.alpha.-hydroxyvitamin D compounds from their corresponding 1.alpha.-hydroxy-5,6-trans isomers in a mixture thereof by treating the mixture with a dienophile and then separating the resulting dienophil-adduct of the 1.alpha.-hydroxy-5,6-trans vitamin D isomer from the unreacted 1.alpha.-hydroxyvitamin D compound.
REFERENCES:
patent: 4022768 (1977-05-01), Matsunaga et al.
patent: 4202829 (1980-05-01), DeLuca et al.
patent: 4287129 (1981-09-01), Klausmeier et al.
DeLuca Hector F.
Lee Seok H.
Phelps Mary E.
Schnoes Heinrich K.
Bremer Howard W.
Roberts Elbert L.
Wisconsin Alumni Research Foundation
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