Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – 9,10-seco- cyclopentanohydrophenanthrene ring system doai
Patent
1997-03-03
1998-06-16
Dees, Jose G.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
9,10-seco- cyclopentanohydrophenanthrene ring system doai
552653, C07C40100, A61K 3159
Patent
active
057671117
ABSTRACT:
18-nor-vitamin D.sub.3 analogs in which the angular methyl group attached to carbon 13 of the CD-ring has been removed and replaced by a hydrogen atom. The 18-nor vitamin D compounds are characterized by relatively high cell differentiation activity, while exhibiting much lower activity than 1.alpha.,25-dihydroxyvitamin D.sub.3 in their ability to mobilize calcium from bone. These compounds would be useful for the treatment of diseases where bone formation is desired, such as osteoporosis, because of their preferential calcemic activity, and for the treatment of psoriasis due to their cell differentiation activity.
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Maynard et al, "18-Substituted Derivatives of Vitamin D: 18-Acetoxy-1,25-Dihydroxyvitamin D.sub.3 and Related Analogues", J. Org. Chem., vol. 57, 1992, pp. 3214-3217.
Nilsson et al, "Synthesis and Biological Evaluation of 18-Substituted Analogs of 1,25-Dihdyroxyvitamin D.sub.3 ", Bioorg. Med. Chem. Letters, vol. 3, No. 9, 1993, pp. 1855-1858.
DeLuca Hector F.
Perlman Kato L.
Sicinski Rafal R.
Dees Jos,e G.
Pryor Alton N.
Wisconsin Alumni Research Foundation
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