Benzene derivatives, their preparation and pharmaceutical compositions in which they are present
US5449693A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1994 |
| Grant date | Sep 12, 1995 |
| Priority date | — |
| Expiry date | Jun 22, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to compounds of the formula ##STR1## in which: R.sub.1 is hydrogen or a halogen atom; PA1 R.sub.2 is a cyclohexyl or a phenyl; PA1 R.sub.3 is a (C.sub.3 -C.sub.6) cycloalkyl; PA1 R.sub.4 is hydrogen, (C.sub.1 -C.sub.6) alkyl or a (C.sub.3 -C.sub.6) cycloalkyl; A is --CO--CH.sub.2 --, --CH(Cl)--CH.sub.2 --, --CH(OH)--CH.sub.2 --, CH.sub.2 --CH.sub.2 --, --CH.dbd.CH-- and --C.tbd.C--, or their addition salts with mineral or organic acids. These compounds are active on the immune system. The present invention further relates to a method of preparing said compounds and to the pharmaceutical compounds in which they are present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.