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:
Mar. 03, 1992
Filed:
Feb. 16, 1990
Applicant:
Inventors:
Peter M Smid, Bleiswijk, NL;
Willem J Van Zoest, Schiedam, NL;
Pieter G Weber, Delft, NL;
Arthur F Marx, Delft, NL;
Assignee:
Akzo N.V., Arnhem, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549 11 ; 549-4 ; 549 14 ; 549 15 ; 549 22 ; 549 30 ; 549 31 ; 552505 ; 552515 ; 552521 ; 552522 ; 552558 ; 552560 ; 552561 ; 552562 ; 552563 ; 552582 ;
Abstract
A process for the preparation of novel 14.alpha., 17.alpha.-dihydroxy-17.beta.-substituted steroids by reacting 14.alpha.-hydroxy-17-oxo-steroids with metal organic compounds and the use of the said novel steroids in the production of 14.alpha., 17.alpha.-methylenedioxy-pregnane derivatives.