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. 23, 2000
Filed:
Dec. 10, 1997
Heinrich Meier, Kobe, JP;
Wolfgang Hartwig, Stamford, CT (US);
Bodo Junge, Wuppertal, DE;
Rudolf Schohe-Loop, Wuppertal, DE;
Zhan Gao, Beijing, CN;
Bernard Schmidt, Lindlar, DE;
Maarten de Jonge, Overath, DE;
Teunis Schuurman, Lohmar, DE;
Bayer Aktiengesellschaft, Leverkusen, DE;
Abstract
4-Phenyl-3-substituted 1,4-dihydropyridine esters are prepared by reaction of benzaldehydes with ketoesters and enamines, if appropriate with isolation of the ylidene intermediate products, or by esterification of corresponding dihydropyridinecarboxylic acids with alcohols. The new 4-phenyl-3-substituted 1,4-dihydropyridine esters can be employed as active compounds in medicaments for the treatment of the central nervous system, in particular as cerebral therapeutics.