Back to results
US 6,649,767 B2Granted
Process for preparing 1,4-dihydropyridine compounds
AssigneePfizer Inc.
InventorsKunio Satake, Noriaki Murase
Life of this patent
Estimating the term…
Abstract
A process for preparing a 1,4-dihydropyridine compound comprising contacting an enamine compound and a compound having a structure of in the presence of a base; and treating the reaction mixture thus obtained in the presence of an acid or a combination of acids under mild reaction conditions. A resulting 1,4-dihydropyridine compound is useful as an anti-inflammatory agent or the like.
Claims13
A process for preparing 1,4-dihydropyridine compounds which comprises the steps of (a) contacting an enamine compound having a structure of
- and a compound having a structure of
- in the presence of a base;
- and (b) treating the reaction mixture thus obtained in the presence of an acid or a combination of acids.
Dependencies are inferred from the claim text.