s-Triazolo(3,4-I)purine derivatives
US5173492A · kind A · utility
5Cited by
0References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1991 |
| Grant date | Dec 22, 1992 |
| Priority date | — |
| Expiry date | Aug 23, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D471/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There are disclosed s-triazolo[3,4-i]purine derivatives represented by formula: ##STR1## wherein Y-Z represents ##STR2## R.sub.4 represents hydrogen, alkyl, substituted or unsubstituted aromatic heterocyclic group or substituted or unsubstituted aryl; and X.sup.2 represents oxygen, sulfur or NH; each of R.sup.1 and R.sup.2 independently represents hydrogen, alkyl, cycloalkyl, aralkyl or substituted or unsubstituted aryl; R.sup.3 represents alkyl, cycloalkyl, aralkyl or substituted or unsubstituted aryl; X.sup.1 represents oxygen or sulfur; and represents a single bond or a double bond or pharmaceutically acceptable salts thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.