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US 4,360,471 AGranted
23-Dehydro-25-hydroxyvitamin D.sub.3
AssigneeWisconsin Alumni Research Foundation
InventorsHector F. DeLuca, Heinrich K. Schnoes, Joseph K. Wichmann
Life of this patent
Estimating the term…
Abstract
A novel vitamin D.sub.3 compound, 23-dehydro-25-hydroxyvitamin D.sub.3, and hydroxy-protected derivatives thereof are provided. The new compound is a side-chain-desaturated analog of 25-hydroxycholecalciferol, and would find application as a substitute for such compound or for vitamin D.sub.3.
Claims4
A compound having the formula ##STR3## wherein each of R.sub.1 and R.sub.2 is selected from the group consisting of hydrogen, acyl and alkylsilyl.
23-dehydro-25-hydroxyvitamin D.sub.3.
Dependencies are inferred from the claim text.