Pharmaceutical piperazine compounds
US5935955A · kind A · utility
2Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Aug 29, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D471/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A piperazinedione of general formula (I): ##STR1## wherein R.sup.1 is selected from hydrogen; PA1 a group of formula --(NH).sub.t --COR.sup.3 wherein t is 0 or 1 and R.sup.3 is an organic substituent as defined herein; PA1 a group of formula (D): ##STR2## and a group of formula (E): ##STR3## and the pharmaceutically acceptable salts thereof are useful as modulators of multi-drug resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.