Pyridazinone derivatives and processes for preparing the same
US5698554A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1996 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Jun 27, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D409/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a pyridazinone compound represented by the formula (I): ##STR1## wherein X represents hydrogen atom or the like; Y represents a single bonding arm, oxygen atom or sulfur atom; A represents a straight or branched alkylene group which may have a double bond; PA1 B represents carbonyl group or thiocarbonyl group; and R.sup.2 represents an alkyl group having 1 to 10 carbon atoms which may be substituted or the like; or PA1 B represents sulfonyl group; and R.sup.2 represents a lower alkenyl group or the like; PA1 R.sup.1 represents hydrogen atom or the like; R.sup.3 represents hydrogen atom or the like; R.sup.4 represents hydrogen atom or the like; and R.sup.5 represents hydrogen atom or the like, PA0 or a pharmaceutically acceptable salt thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.