A benzimidazole derivative or its medically acceptable salt, represented by the following formula (1), that is a human chymase activity inhibitor capable of being applied clinically:
1
wherein, R
1
and R
2
represent a hydrogen atom, an alkyl group or an alkoxy group, etc., A represents an alkylene group or an alkenylene group, E represents —COOR
3
, —SO
3
R
3
, —CONHR
3
or —SO
2
NHR
3
, etc., G represents an alkylene group, M represents a single bond or —S(O)
m
. J represents a heterocyclic group, and X represents —CH═ or a nitrogen atom.
Reaction of 1,3-dicarbonyl compounds with<i>o</i>-phenylenediamine or 3,3′-diaminobenzidine in water or under solvent-free conditions via microwave irradiation
作者:Zhong-Xia Wang、Hua-Li Qin
DOI:10.1002/jhet.5570420540
日期:2005.7
Reaction of ophenylenediamine with β-diketones or β-ketoesters in water formed 2-substituted benzimi-dazoles. Reaction of 3,3′-diaminobenzidine gave similar results. Undermicrowaveirradiationconditionssolvent-freereaction of o-phenylenediamine with β-ketoesters afforded l,5-benzodiazepin-2-one derivatives. An exception is the reaction of o-phenylenediamine with ethyl acetoacetate under microwave
A benzimidazole derivative or its medically acceptable salt, represented by the following formula (1), that is a human chymase activity inhibitor capable of being applied clinically:
1
wherein, R
1
and R
2
represent a hydrogen atom, an alkyl group or an alkoxy group, etc., A represents an alkylene group or an alkenylene group, E represents —COOR
3
, —SO
3
R
3
, —CONHR
3
or —SO
2
NHR
3
, etc., G represents an alkylene group, M represents a single bond or —S(O)
m
—, J represents a heterocyclic group, and X represents —CH═ or a nitrogen atom.
A benzimidazole derivative or its medically acceptable salt, represented by the following formula (1), that is a human chymase activity inhibitor capable of being applied clinically:
wherein, R1 and R2 represent a hydrogen atom, an alkyl group or an alkoxy group, etc., A represents an alkylene group or an alkenylene group, E represents -COOR3, -SO3R3, -CONHR3 or -SO2NHR3, etc., G represents an alkylene group, M represents a single bond or -S(O)m-, J represents a heterocyclic group, and X represents -CH= or a nitrogen atom.