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:
Jun. 06, 2006
Filed:
Sep. 08, 2004
Applicants:
Gerhard Schnabel, Grosswallstadt, DE;
Jan Vermehren, Cambridge, GB;
Lothar Willms, Hofheim, DE;
Inventors:
Assignee:
Hoechst Schering AgrEvo GmbH, Berlin, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 239/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to the preparation of compounds (I) in which A=H or acyl and R, R, R, R, n, X, Y and Z are as defined in claimby halogenation and rearrangement of compounds (II) (optionally salt) to give compounds (III) R*═OH, R**═NRR  (II)R*═NRR, R**═Cl  (III)R*═NRR, R**═NH  (IV)