Patent · US Expired

4-heterocyclyl-substituted dihydropyridines

US5502064A · kind A · utility

2Cited by

9References

2Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Bodo Junge · Wuppertal, DE
Wolfgang Hartwig · Wuppertal, DE
Heinrich Meier · Wuppertal, DE
Rudolf Schohe-Loop · Wuppertal, DE
Zhan Gao · Beijing, CN
Bernard Schmidt · Lindlar, DE
Maarten de Jonge · Overath, DE
Teunis Schuurman · Overath, DE

Key dates

Filing date	Oct 22, 1993
Grant date	Mar 26, 1996
Priority date	—
Expiry date	Oct 22, 2013

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D409/04
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

4-Heterocyclyl-substituted dihydropyridines are prepared by reacting appropriate aldehydes with .beta.-keto esters and aminocrotonic acid esters, or by esterifying 4-hetero-cyclyl-substituted dihydropyridinecarboxylic acids. The 4-heterocyclyl-substituted dihydropyridines can be employed in medicaments, in particular for the treatment of disorders of the central nervous system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.