Cerebral function enhancing pyrimidinyl derivatives
US5098904A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1990 |
| Grant date | Mar 24, 1992 |
| Priority date | — |
| Expiry date | Jun 27, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P25/28
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A series of pyprimidinyl compounds of formulae I, II and III; ##STR1## wherein R.sup.1 and R.sup.2 are independently selected from hydrogen and hydroxy; PA0 R.sup.3 is selected from hydrogen, hydroxy, or oxo, with the proviso that R.sup.3 can only be oxo when R.sup.1 and R.sup.2 are hydrogen, and further that R.sup.1, R.sup.2, and R.sup.3 cannot all be hydrogen or hydroxy at the same time; and PA0 the solid and dotted lines refer to either a double covalent bond or a single covalent bond with another hydrogen atom covalently bonded to the carbon terminus end. The compounds of this invention possess cognition and memory enhancing activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.