1,4-Dihydropyridine derivatives
US4501748A · kind A · utility
1Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1983 |
| Grant date | Feb 26, 1985 |
| Priority date | — |
| Expiry date | Oct 14, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D211/90
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An optical isomer having an optical rotation degree of (+) from among (.+-.)-.alpha.-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dica rboxylic acid-3-(1-benzyl-3-piperidyl) ester-5-methyl ester, the hydrochloride of which has melting points ranging from 196.degree. to 202.degree. C.; or a salt thereof is described as being suitable for use in a pharmaceutical composition having hypotensive activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.