Quinoline-3-acetic acid derivative, process for production thereof and use thereof
US5543420A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Nov 1, 1994 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Nov 1, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A quinoline-3-acetic acid derivative of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are the same or different and each is a hydrogen atom or a halogen atom, R.sup.4 is a hydrogen atom, a halogen atom or a substituted or unsubstituted lower alkyl, R.sup.5 is an optionally esterified carboxyl and the broken line means an optional presence of a double bond, and a pharmaceutically acceptable salt thereof. The novel compound of the formula (I) and a pharmaceutically acceptable salt thereof of the present invention have an aldose reductase inhibitory activity in mammals inclusive of human and are highly safe. Accordingly, they are useful as pharmaceutical compositions for the treatment of the complications of diabetes, such as faulty union of corneal injury, cataract, neurosis, retinopathy and nephropathy, particularly cataract and neurosis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.