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:
Oct. 25, 1994
Filed:
Nov. 19, 1992
Applicant:
Inventor:
Gerhard Jahne, Frankfurt am Main, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544317 ; 544309 ; 544314 ;
Abstract
Process for the preparation of 5-substituted cytosines and other 4,5-disubstituted pyrimidin-2(1H)-ones, and intermediates arising in the course of this The process for the preparation of compounds of the formula I, ##STR1## wherein compounds of the formula II ##STR2## are converted into an azole derivative of the formula III or an azine derivative of the formula IV ##STR3## which can subsequently be converted into a compound of the formula I using a nucleophile XH.