2-Substituted-s-triazolo[1,5a]pyrimidines
US4036840A · kind A · utility
22Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 1975 |
| Grant date | Jul 19, 1977 |
| Priority date | — |
| Expiry date | May 22, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D249/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
2-Substituted-s-triazolo[1,5a]pyrimidines are disclosed which are useful as inhibitors of phosphodiesterase enzymes or intermediates in the production process. Such compounds are of the following structure: ##STR1## wherein X, R, R.sub.1, R.sub.2 and R.sub.3 are as defined hereinafter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.