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:
Jun. 15, 1976
Filed:
Jul. 11, 1974
Yehuda Mazur, Tel Aviv, IL;
Avner Rotman, Rehovot, IL;
Other;
Abstract
Process for the production of hydroxylated derivatives of cholesterol and 7-dehydrocholesterol which comprises subjecting a saturated unsubstituted or substituted derivative of cholestane, dissolved in a suitable solvent, in the presence of peracetic acid, to irradiation with ultra-violet radiation of a wavelength below 350m.mu. , or heating in a suitable solvent, separating the reaction products, which if desired, are converted to other derivatives, and recovering the residue of the starting material. Novel derivatives are obtained and these are: 3.beta.-acetoxy,25-hydroxy,5.alpha.-cholestane; 3.beta.-acetoxy, 5.alpha.,25-dihydroxy cholestane; 3.beta.,5.alpha.,25-trihydroxy cholestane; 3-keto, 5.alpha.,25-dihydroxy cholestane; 3-keto,25-hydroxy-.DELTA..sup.4 -cholestane; 3.beta.,25-diacetoxy-5.alpha.-hydroxy-cholestane; 3.beta.-acetoxy, 25-trichloroacetoxy-5.alpha.-hydroxy-cholestane, 25-trichloroacetoxy-cholesterol and 25-acetoxy-cholesterol.