Partial dopamine receptor agonists with different degrees of intrinsic activity within a series of 2-(4-aminophenyl)-N,N-dipropylethylamine derivatives: synthetic chemistry and structure-activity relationships
摘要:
A series of 2-(4-aminophenyl)-N,N-dipropylethylamine derivatives were synthesized and tested for in vivo intrinsic activity at brain dopamine receptors in the rat. Differences in the sensitivity of dopamine receptors pre and post-synaptically in the reserpine-treated rat were used to estimate the intrinsic activity of the various compounds as dopamine receptor agonists. Thus, the ability of the compounds to antagonize reserpine-induced increase in neostriatal dopamine synthesis and the suppression of spontaneous locomotor activity were taken as pre-and post-synaptic indices, respectively. The compounds in the present series display a gradient of intrinsic activity depending on the substituents in the aromatic ring. The presence of an amino group or an appropriate acylamino group in the 4-position was found to be critical for the biological activity of these compounds as agonists or antagonists. The introduction of halogen or a trifluoromethyl group In the 3-position resulted in high intrinsic activity (ie, agonist activity). The incorporation of a methyl group in the 3-position or halogens in the 3,5-positions resulted in a gradual decrease in intrinsic activity at rat brain dopamine receptors resulting in a series of compounds ranging from a full agonist to dopamine receptor blockade.
[EN] 1H-IMIDAZOQUINOLINE DERIVATIVES AS PROTEIN KINASE INHIBITORS<br/>[FR] DERIVES D'1H-IMIDAZOQUINOLINE EN TANT QU'INHIBITEURS DE LA PROTEINE KINASE
申请人:NOVARTIS AG
公开号:WO2005054237A1
公开(公告)日:2005-06-16
The invention relates to imidazoquinolines of formula (I) for use in the treatment of protein kinase dependent diseases; pharmaceutical preparations comprinsing an imidazoquinoline, especially for the treatment of a pretein kinase dependent disease; novel imidazoquinolines; and a process for the preparation of the novel imidazoquinilines.
Cyanomethylation of the Benzene Rings and Pyridine Rings via Direct Oxidative Cross-Dehydrogenative Coupling with Acetonitrile
作者:Hua Yao、Xiaoyang Zhong、Bingqing Wang、Sen Lin、Zhaohua Yan
DOI:10.1021/acs.orglett.2c00498
日期:2022.3.18
and efficient approach for the amine-directed dehydrogenative C(sp2)–C(sp3) coupling of arylamines with acetonitrile was reported by using FeCl2 as the catalyst. Substituted anilines, aminopyridines, naphthylamines, and some nitrogen-containing heterocyclic arylamines react with inactive acetonitrile to form the corresponding arylacetonitriles in moderate to good yields. This protocol features nontoxic
1H-Imidazoquinoline Derivatives as Prote In Kinase Inhibitors
申请人:Capraro Hans-Georg
公开号:US20080262021A1
公开(公告)日:2008-10-23
The invention relates to imidazoquinolines of formula (I) for use in the treatment of protein kinase dependent diseases; pharmaceutical preparations comprising an imidazoquinoline, especially for the treatment of a protein kinase dependent disease; novel imidazoquinolines; and a process for the preparation of the novel imidazoquinolines.