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:
Sep. 26, 2000
Filed:
Jul. 17, 1998
Applicant:
Inventors:
Katsuhito Miyamoto, Tokyo, JP;
Noboru Kubodera, Shizuoka-ken, JP;
Assignee:
Chugai Seiyaku Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C07C / ;
U.S. Cl.
CPC ...
514167 ; 552653 ;
Abstract
1.alpha.-hydroxy-vitamin D derivatives represented by formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a hydroxyl group; and R.sub.2 represents a straight-chain or branched C.sub.2 -C.sub.7 alkyl, C.sub.2 -C.sub.7 alkenyl, or C.sub.2 -C.sub.7 alkynyl group. The compounds exhibit calcium metabolism regulating activity and differentiation stimulating activity on tumor cells, and are useful as treating agents for diseases caused by abnormal calcium metabolism, such as osteoporosis and osteomalacia, or as antitumor agents.