| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| 间氯苯甲酰胺 | 3-chlorobenzamide | 618-48-4 | C7H6ClNO | 155.584 |
| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| 间氯苯甲酰胺 | 3-chlorobenzamide | 618-48-4 | C7H6ClNO | 155.584 |
| —— | N-((Bis(2-chloroethyl)amino)methyl)-3-chlorobenzamide | 40478-16-8 | C12H15Cl3N2O | 309.623 |
| —— | 3-chloro-N-[(4-methylphenyl)sulfanylmethyl]benzamide | 501087-85-0 | C15H14ClNOS | 291.801 |
A series of 3-acylaminomethyl-6-(chloro, iodo and methyl)-2-(phenyl, 4′-t-butylphenyl, 4′-cyclohexyl- phenyl, biphenyl-4′-yl, 4′-chlorophenyl and 4′-iodophenyl)imidazo[1,2-b]pyridazines and imidazo[1,2- a]pyridines has been prepared and examined for interaction with central and mitochondrial (peripheral- type) benzodiazepine receptors. The imidazo[1,2-b]pyridazines were generally more selective for the mitochondrial receptors than the corresponding imidazo[1,2-a]pyridines. Of these compounds, 3- acetamidomethyl-2-(biphenyl-4′-yl)-6-chloroimidazo[1,2-b]pyridazine (9) proved to be the most selective in studies of the displacement of [3H]diazepam from peripheral-type and central benzodiazepine receptors (IC50 2·8 nM and 0% displacement at 1000 nM, respectively).
Some 3-(aliphatic and aromatic) acylaminomethyl derivatives of 6-( chloro, fluoro, methoxy, methylthio, phenoxy and phenylthio )-2-(phenyl, 4-t-butylphenyl, 4-cyclohexylphenyl, β- naphthyl and styryl ) imidazo [1,2-b] pyridazines have been prepared and tested for binding to central benzodiazepine receptors present in rat brain membrane, and to peripheral-type (mitochondrial) benzodiazepine receptors present in rat kidney membrane. Some of these compounds which contained 2-(4-t-butylphenyl, 4-cyclohexylphenyl and styryl ) substituents bound strongly and selectively to peripheral-type benzodiazepine receptors. For example, 2-(4′-t-butylphenyl)-6-chloro-2-(4″-fluorobenzamidomethyl) imidazo [1,2-b] pyridazine in tests for the displacement of [3H]diazepam from both peripheral-type and central benzodiazepine receptors gave IC50 <1.0 nM and 9% displacement at 1000 nM , respectively. Steric effects appeared to be more restrictive in the interaction of these ligands with central benzodiazepine receptors rather than with peripheral-type benzodiazepine receptors; X-ray structure analyses of two typical compounds are reported.