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. 18, 1979
Filed:
May. 17, 1978
Applicant:
Inventors:
Kiyoshige Ochi, Kawagoe, JP;
Isao Matsunaga, Tokyo, JP;
Minoru Shindo, Tokyo, JP;
Chikara Kaneko, Kanazawa, JP;
Assignee:
Chugai Seiyaku Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07J / ;
U.S. Cl.
CPC ...
2603972 ; 2602 / ;
Abstract
3.alpha.,6.alpha.-Dihydroxy-5.beta.-cholestan-24-one or its derivative represented by the formula ##STR1## wherein R is as defined hereunder which is a useful intermediate for the production of an active vitamin D, and a process for preparing the compound of the formula are disclosed.