Pyridazinone compounds
US8513251B2 · kind B2 · utility
4Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2012 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Jul 6, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/2059
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides a compound which has the effect of PDE inhibition, and which is useful as a medicament for preventing or treating schizophrenia or so on. A compound of formula (I0), wherein R1 represents a substituent; R2 represents a hydrogen atom, or a substituent; R3 represents a hydrogen atom, or a substituent; Ring A represents an aromatic ring which can be substituted, and Ring B represents a 5-membered heteroaromatic ring which can be substituted, or a salt thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.