Vitamin D.sub.3 derivative
First Claim
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1. 1α
- ,25-Dihydroxy-24a,24a-difluoro-24-homovitamin D3 represented by the following formula;
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Abstract
This invention provides 1α,25-dihydroxy-24a,24a-difluoro-24-homovitamin D3 and a process for its production. This compound has strong vitamin D activity and low toxicity and is useful for preventing and treating calcium pathobolism, osteoporosis, etc.
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Citations
1 Claim
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1. 1α
- ,25-Dihydroxy-24a,24a-difluoro-24-homovitamin D3 represented by the following formula;
##STR4##
- ,25-Dihydroxy-24a,24a-difluoro-24-homovitamin D3 represented by the following formula;
Specification
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Current AssigneeTaisho Pharmaceutical Company Limited (Taisho Pharmaceutical Holdings Company Limited)
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Original AssigneeTaisho Pharmaceutical Company Limited (Taisho Pharmaceutical Holdings Company Limited)
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InventorsIkekawa, Nobuo
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Primary Examiner(s)Robinson, Douglas W.
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Assistant Examiner(s)Lipovsky, Joseph A.
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Application NumberUS07/080,512Time in Patent Office685 DaysField of Search260/397.2US Class Current552/653CPC Class CodesC07C 401/00 Irradiation products of cho...
