N-(2-oxpyrrolidin-1-yl-)acetyl)piperazine derivatives and drug for senile dementia
US4904663A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1988 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Jul 15, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A compound of the formula: ##STR1## (wherein R is --SO.sub.2 R.sup.1 or --CONHR.sup.2 ; R.sup.1 is C.sub.1 -C.sub.5 alkyl, C.sub.8 -C.sub.12 phenylalkenyl, amino, dimethylamino, optionally substituted C.sub.8 -C.sub.12 aryl, or 5- or 6-membered heterocyclic group including at least one hetero atom selected from the group consisting of N, S, and O; R.sup.2 is amino, C.sub.1 -C.sub.8 alkylamino, C.sub.1 -C.sub.8 alkyl, or optionally substituted C.sub.8 -C.sub.12 aryl) or its pharmaceutically acceptable acid-addition salt, being useful as a drug for senile dementia, psychotropic, or antiamnesia agent is provided through several routes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.