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. 30, 1989
Filed:
Jan. 06, 1987
Applicant:
Inventors:
Assignee:
Blaschim S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07J / ;
U.S. Cl.
CPC ...
2603971 ;
Abstract
The keto group at the 7-position of a bile keto acid is stereoselectively reduced to a beta-hydroxy group with hydrogen in the presence of nickel, a base (the quantity of which is at least 0.3 mole for each mole of keto acid), and an alcohol having from 3 to 10 C atoms, selected from the group consisting of secondary alcohols, tertiary alcohols and beta-branched alcohols.