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. 03, 1977
Filed:
Oct. 09, 1975
Applicant:
Inventors:
Albert Eduard Fischli, Basel, CH;
Michael Josef Klaus, Weil am Rhine, DT;
Hans Johann Mayer, Fullinsdorf, CH;
Alexander Eduard Wick, Riehen, CH;
Assignee:
Hoffmann-La Roche Inc., Nutley, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603264 ; 2602 / ; 26029356 ; 2603 / ; 2603 / ; 2603 / ; 2603458 ; 2603459 ; 2503463 ; 2603 / ; 260464 ; 2604 / ; 2604 / ; 2604 / ; 2604 / ;
Abstract
A process for preparing (3,4,5,6)-4-benzyloxymethyl-hexahydro-5-hydroxy-2H-cyclopenta[b]furan-2-on e, a known intermediate for producing prostaglandins from 5,6-dimethylbicyclo[2.2.1]hept-5-en-2-endo-3-endo-dicarboxylic acid anhydride and intermediates in this process.