The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 1980
Filed:
May. 17, 1978
Kiyoshi Bannai, Hino, JP;
Norio Ohnuma, Hino, JP;
Seiichi Ishizuka, Hino, JP;
Junji Kubo, Hachioji, JP;
Tatuyuki Naruchi, Hino, JP;
Teijin Limited, Osaka, JP;
Abstract
Novel 1.alpha.-hydroxy-24-dehydrovitamin D.sub.3 and its hydroxyl-protected derivatives; novel 1.alpha.-hydroxy-24-dehydroprevitamin D.sub.3 and its hydroxyl-protected derivatives; and novel 1.alpha.,3.beta.-dihydroxycholesta-5,7,24-triene or its hydroxyl-protected derivatives which are key intermediates for preparing the aforesaid compounds. Novel processes for preparing these compounds are also provided. 1.alpha.-Hydroxy-24-dehydrovitamin D.sub.3 has a pharmacological action of controlling the calcium metabolism of warm-blooded animals, and is useful as a prophylactic or therapeutic pharmaceutical for vitamin D deficient disease and related diseases.