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:
Nov. 13, 1975
Applicant:
Inventor:
Keith Blakeney Mallion, Macclesfield, EN;
Assignee:
Imperial Chemical Industries Limited, London, EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602 / ;
Abstract
The disclosure relates to a novel four-stage reaction sequence whereby known enone intermediates for prostaglandin analogues may be obtained from 4.beta.-dimethoxymethyl-2,3,3.alpha..beta.,6.alpha..beta.-tetrahydro-5.alp ha.-hydroxy-6.beta.-iodo-2-oxocyclopenteno[b]furan in substantially increased yield. A novel intermediate produced in the novel four-stage reaction sequence is also claimed.