Pyridazine derivatives and medicines containing the same as effective ingredients

• Main Authors: OHGIYA, TADAAKI, MATSUDA, TAKAYUKI, OHKUCHI, MASAO, YOSHIZAKI, HIDEO, KITAMURA, TAKAHIRO, SHIGYO, HIROMICHI, HABATA, YORIKO, KOTAKI, KYOKO, KYOTANI, YOSHINORI, YAMAZAKI, YUKIYOSHI, KUMAI, NATSUYO, KOSHI, TOMOYUKI
• Format: Patent
• Language: English; French; German
• Published: 21.01.2009
• Subjects: CHEMISTRY; HETEROCYCLIC COMPOUNDS; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; ORGANIC CHEMISTRY; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS

A pyridazine derivative represented by the following formula (1): wherein R 1 represents a phenyl or pyridyl group which may be substituted by 1 to 3 substituents selected from a halogen atom and a C 1-6 alkoxyl group, R 2 represents a phenyl group substituted at least at 4-position by a C 1-6 alkoxyl group, C 1-6 alkylthio group, a C 1-6 alkylsulfinyl group, or a C 1-6 alkylsulfonyl group, and optionally has one or more substituents at the other position by 1 or 2 substituents selected from a halogen atom, a C 1-6 alkoxyl group, C 1-6 alkylthio group, a C 1-6 alkylsulfinyl group, or a C 1-6 alkylsulfonyl group, R 3 represents a C 1-6 alkoxyl group, a fluorinated C 1-6 alkyl group, C 1-6 alkyl group or a C 3-8 cycloalkyl group, A represents a single bond or linear or branched C 1-6 alkylene group or C 2-9 alkenylene group, X represents an oxygen atom or a sulfur atom; or a salt thereof.