Disclosed is a compound represented by the formula (I):
Wherein R1 and R2 independently represent a hydrogen atom, a lower alkyl group or the like; X1 , X2 and X3 independently represent a methine group or a nitrogen atom; Y1 and Y3 independently represent a single bond, -O- or the like; Y2 represents a lower alkylene group or the like; W1 to W4 independently represent a single bond, a methylene group or the like; L represents a single bond, a methylene group or the like; Z1 and Z2 independently represent a single bond, a C1-4 alkylene group or the like; Ar1 represents an aromatic carbocyclic ring or the like; and Ar2 represents a bicyclic aromatic carbocyclic ring or the like. The compound is useful as a pharmaceutical for a central disease, a cardiovascular disease or a metabolic disease.
SAKATA, GOZYO;MAKINO, KENZI, CHEM. LETT., 1984, N 3, 323-326
作者:SAKATA, GOZYO、MAKINO, KENZI
DOI:——
日期:——
Bicyclic aromatic substituted pyridone derivative
申请人:Sakuraba Shunji
公开号:US20090264426A1
公开(公告)日:2009-10-22
Disclosed is a compound represented by the formula (I):
Wherein R
1
and R
2
independently represent a hydrogen atom, a lower alkyl group or the like; X
1
, X
2
and X
3
independently represent a methine group or a nitrogen atom; Y
1
and Y
3
independently represent a single bond, —O— or the like; Y
2
represents a lower alkylene group or the like; W1 to W4 independently represent a single bond, a methylene group or the like; L represents a single bond, a methylene group or the like; Z
1
and Z
2
independently represent a single bond, a C
1-4
alkylene group or the like; Ar
1
represents an aromatic carbocyclic ring or the like; and Ar
2
represents a bicyclic aromatic carbocyclic ring or the like. The compound is useful as a pharmaceutical for a central disease, a cardiovascular disease or a metabolic disease.
REGIOSELECTIVE SYNTHESIS OF 2,6-DICHLOROQUINOXALINE AND 2-CHLORO-6-IODOQUINOXALINE
作者:Gozyo Sakata、Kenzi Makino
DOI:10.1246/cl.1984.323
日期:1984.3.5
Facile regioselective synthesis of 2,6-dichloroquinoxaline and 2-chloro-6-iodoquinoxaline is described. Electrophilic substitution reaction of 2(1H)-quinoxalinone with chloride and iodide ion in 95% sulfuric acid occurred at 6-position exclusively.