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. 20, 2017
Filed:
Feb. 16, 2015
Applicant:
Richter Gedeon Nyrt., Budapest, HU;
Inventors:
Sándor Mahó, Budapest, HU;
Csaba Sánta, Budapest, HU;
János Csörgei, Budapest, HU;
Gábor Szabó, Dorog, HU;
Tamás Schäfer, Budapest, HU;
Zoltán Béni, Maglód, HU;
Assignee:
Richter Gedeon Nyrt., Budapest, HU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07J 5/00 (2006.01); C07J 3/00 (2006.01); C07J 41/00 (2006.01); C07J 51/00 (2006.01);
U.S. Cl.
CPC ...
C07J 41/0083 (2013.01); C07J 5/0053 (2013.01); C07J 51/00 (2013.01);
Abstract
The present invention relates to a process for the synthesis of compounds of formula (I), wherein the meaning of R is dimethylamino or acetyl group, using the compound of formula (III) or (IV), wherein the meaning of R' is dimethylamino or 2-methyl-1,3-dioxan-2-yl group, as starting material and methoxymethyl lithium as reagent.