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. 12, 1989
Filed:
Jul. 13, 1988
Applicant:
Inventors:
Assignee:
Inverni della Beffa S.p.A., Milan, IT;
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
514100 ; 549220 ;
Abstract
Novel water-soluble derivatives of silybin of enhanced activity are provided as well as methods of preparing the derivatives and pharmaceutical compositions containing them. The novel derivatives according to the invention have the following general formula (I); ##STR1## where: R=H or PO(OH).sub.2 and R'=PO(OH).sub.2 The compounds of the invention are useful inter alia in therapy of liver disorders and other applications where an anti-radical effect is required. They have the advantages of high hydrophilicity and are soluble at approximately pH 4, compared to prior art compounds which are water-soluble only at higher pH and enhanced stability.