2,6-piperazinedione compounds
US4820707A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1987 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | Jul 8, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D403/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to 2,6-piperazinedione derivatives of general formula I ##STR1## in which: A and B each denote a methylene radical or a carbonyl radical with the proviso, however, that A and B never simultaneously denote the same radical, PA1 R.sub.1 denotes a diphenylmethyl radical optionally substituted on the benzene rings with a halogen atom, a cyclohexyl radical, a pyridylmethyl group, or a benzyl radical optionally substituted with a halogen atom or with an alkoxy radical containing from 1 to 4 carbon atoms, PA1 R.sub.2 denotes a pyrimidinyl radical or a phenyl radical optionally substituted with a halogen atom, with an alkyl radical having from 1 to 4 carbon atoms, with a trifluoromethyl radical or with an alkoxy radical containing from 1 to 4 carbon atoms, PA1 n is an integer from 2 to 4, and their addition salts with a pharmaceutically acceptable inorganic or organic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.