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:
May. 19, 1987
Filed:
Nov. 20, 1985
Katsuhito Miyamoto, Tokyo, JP;
Noboru Kubodera, Saitama, JP;
Kiyoshige Ochi, Saitama, JP;
Isao Matsunaga, Tokyo, JP;
Eigoro Murayama, Chiba, JP;
Chugai Seiyaku Kabushiki Kaisha, Tokyo, JP;
Abstract
A 1.alpha.-hydroxy vitamin D.sub.3 derivative of the formula: ##STR1## where R.sub.1 is a hydroxyl group, an amino group or the group: OR' (where R' is a lower alkyl group having 1 to 7 carbon atoms that may or may not be substituted by a hydroxyl group, a halogen atom, a cyano group, a lower alkoxy group having 1 to 3 carbon atoms, an amino group, or an acylamino group); R.sub.2 is a hydrogen atom or a hydroxyl group), and a process for preparing the same are disclosed. The compound represented by the formula above has the calcium control action and the ability to induce differentiation in tumor cells and, therefore, are useful as an antitumor agents and a medicine for treating calcium dysbolism-caused diseases.