Purine inhibitors of cyclin dependent kinase 2
US5866702A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1996 |
| Grant date | Feb 2, 1999 |
| Priority date | — |
| Expiry date | Aug 2, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D473/40
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A 2,6,9-trisubstituted purine composition having the following formula: ##STR1## where X is a amino, oxo, thio, of sulfone moiety, R.sub.1 is a lower alkyl, substituted lower alkyl, cycloalkyl, substituted cycloalkyl, cycloheteroalkyl, substituted cycloheteroalkyl, aryl, substituted aryl, heterocycle, hetaryl, substituted hetaryl, aralkyl, heteroaralkyl, heteroalkyl, alkyl alkenyl, alkyl alkynyl, alkyl cycloalkyl, or alkyl cycloheteroalkyl, each having from 1 to 20 carbon atoms; R.sub.2 is hydrogen, lower alkyl, substituted lower alkyl, cycloalkyl, substituted cycloalkyl, aryl, substituted aryl, heterocycle, hetaryl, substituted hetaryl, aralkyl, heteroaralkyl, heteroalkyl, alkyl alkenyl, alkyl alkynyl, alkyl cycloalkyl, or alkyl cycloheteroalkyl; and R.sub.3 is halogen, hydroxyl, thio, alkoxy, alkylthio, lower alkyl, --NR.sub.4 R.sub.5 or a component having the formula: ##STR2## wherein when R.sub.3 is 2-hydroxyethylamino and R.sub.2 is methyl, R.sub.1 -X is not amino, 3-methyl-2-butenylamino, benzylamino, or m-hydroxybenzyl-amino, when R.sub.3 is 2-hydroxyethylamino and R.sub.2 is isopropyl, R.sub.1 -X is not benzylamino, m-hydroxybenzylamino, or 3-methylbutylamino, when R.sub.3 …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.