Novel phenoxyaliphatylphenyleneoxyalkyl esters and amides
US4818766A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Jul 20, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P25/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to novel 1,4-dihydropyridine-3-carboxylic acid phenoxyaliphatylphenyleneoxyalkyl esters of the formula ##STR1## in which Ac represents an acyl group, X represents oxy or optionally substituted imino, A represents a divalent aliphatic hydrocarbon radical interrupted by a group --X.sub.1 --Ph--X.sub.2 -- in which at least one of the radicals X.sub.1 and X.sub.2 represents oxy and a radical X.sub.1 or X.sub.2 that is other than oxy represents a direct bond, and Ph represents an optionally substituted phenylene radical, and R represents an optionally substituted phenyl, pyridyl or 1-oxidopyridyl, (1,3-dioxa)indanyl or benzofurazanyl radical, R.sub.1 represents an optionally substituted phenyl or indolyl radical, R.sub.2 represents an aliphatic hydrocarbon radical and R.sub.3 represents an aliphatic radical, cyano or amino, and acid addition salts thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.