Hydantoin derivatives and medicines containing the same
US4874869A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1987 |
| Grant date | Oct 17, 1989 |
| Priority date | — |
| Expiry date | Jul 13, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D495/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Novel hydantoin derivatives and salts thereof, the process for the preparation thereof, and medicines containing the same, wherein the hydantoin derivatives are represented by the general formula: ##STR1## wherein X.sub.1 and X.sub.2, which may be the same or different, mean independently hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group; Y means oxygen atom or sulfur atom, R.sub.1 and R.sub.2, which may be the same or different, mean independently hydrogen atom, a lower alkyl group or phenyl group, or the both may form a ring with a carbon atom which is combined with them, excluding the case wherein both R.sub.1 and R.sub.2 are hydrogen atom at the same time, and n means an integer of 0 or 1. The novel hydantoin derivatives and salts thereof have excellent effects for the treatment of the complications of the diabetes mellitus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.