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. 19, 1982
Filed:
Aug. 10, 1981
Emil T Kaiser, Chicago, IL (US);
Other;
Abstract
This invention relates to the synthesis of steroids which are useful for their biological activity or which may be converted to steroids which have such activity. These syntheses include the steroid compounds and processes for their preparation. An object of the invention is to provide syntheses which are applicable to materials which are readily available in good supply for converting such materials to steroids which are useful and desirable in the manufacture of pharmaceutical products. More particularly, I have sought to discover processes and intermediate compounds useful in the synthesis of 24, 25-dihydroxycholesterol from hyodeoxycholic acid or lithocholic acid which are constituents of, and readily available from, animal bile.