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:
Oct. 07, 1980
Filed:
Feb. 23, 1979
Applicant:
Inventor:
Emil T Kaiser, Chicago, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07J / ;
U.S. Cl.
CPC ...
2602 / ; 2603972 ; 2603971 ;
Abstract
The synthesis of 1.alpha.,25-dihydroxycholesterol, 1.alpha.,25-dihydroxy-7-dehydrocholesterol and 1.alpha.,25-dihydroxycholecalciferol and other sterol derivatives from bile acids. Also the synthesis of 3,6-diketo steroids useful in the production of 1.alpha.,25-dihydroxycholesterol and other sterols which are biologically active or can be converted to biologically active sterols. The invention involves the sterols so produced and the processes by which they are prepared.