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. 03, 1991
Filed:
Mar. 26, 1990
Applicant:
Inventors:
Bruno Gabetta, Milan, IT;
Raffaello Giorgi, Milan, IT;
Assignee:
IdB Holding SpA, Milan, IT;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549399 ;
Abstract
A process is provided for producing delphinidin which comprises reacting a compound of formula ##STR1## wherein each Pg represents a hydroxyl protecting group, and Lg represents a leaving group with a compound of formula ##STR2## wherein Pg' represents a hydroxyl protecting group characterized in that the compound of formula VII is produced from an intermediate of formula ##STR3## wherein each Pg' represents a hydroxyl protecting group and each Alk represents lower alkyl, by