the one-pot hydrogenation of the nitro group and the reductive alkylation of the amines. While aliphatic amines were effectively converted to the corresponding tertiary amines under Pd/C-catalyzed conditions, Rh/C was a highly effective catalyst for the N-monoalkylation of aliphatic primary amines without over-alkylation to the tertiary amines. Furthermore, the combination of the Rh/C-catalyzed N-monoalkylation
Central Cholinergic Agents. I. Potent Acethlcholinesterase Inhibitors, 2-(.OMEGA.-(N-Alkyl-N-(.OMEGA.-phenyl-alkyl)amino)alkyl)-1H-isoindole-1,3(2H)-diones, Based on a New Hypothesis of the Enzyme's Active Site.
作者:Yuji ISHIHARA、Koki KATO、Giichi GOTO
DOI:10.1248/cpb.39.3225
日期:——
It has been suggested that the active site of acetylcholinesterase contains a hydrophobic binding site (HBS-1), which is closely adjacent to both the anionic and the esteratic sites. In this paper, we assumed that there exists another hydrophobic binding site (HBS-2), some distance removed from the anionic site. On this assumption, a new working hypothesis was proposed for the design of acetylcholinesterase inhibitors. A series of 2-[ω-[N-alkyl-N-(ω-phenyl-alkyl)amino]alkyl]-1H-isoindole-1, 3(2H)-diones was designed based on this hypothesis and tested for its inhibitory activities on acetylcholinesterase. Some in this series were revealed to be more potent than physostigmine. Optimum activity was found to be associated with a five carbon chain length separating the benzylamino group from the 1H-isoindole-1, 3(2H)-dione (phthalimide) moiety. Quantitative study of substitution effect on the phthalimide moiety revealed that hydrophilic and electron-withdrawing groups enhance the activity.
INORGANIC-ORGANIC HYBRID COMPOUNDS INCLUDING ORGANIC PLATINUM-CONTAINING ANIONS, FOR USE IN MEDICINE
申请人:Karlsruher Institut fur Technologie
公开号:US20210292353A1
公开(公告)日:2021-09-23
The present invention relates to inorganic-organic hybrid compounds for use in medicine or for use as medication, consisting of an inorganic metal cation and an organic platinum-containing cytostatic anion, in particular also a cisplatin derivative.
Histamine has been converted into a non‐imidazole H3‐receptor histamineantagonist by addition of a 4‐phenylbutyl group at the Nα‐position followed by removal of the imidazole ring. The resulting compound, N‐ethyl‐N‐(4‐phenylbutyl)amine, remarkably has a Ki = 1.3 μM as an H3 antagonist. Using this as a lead compound, a novel series of homologous O and S isosteric tertiary amines was synthesised and
通过在 Nα-位添加 4-苯基丁基,然后去除咪唑环,组胺已转化为非-咪唑 H3-受体组胺拮抗剂。所得化合物 N-乙基-N-(4-苯基丁基)胺作为 H3 拮抗剂具有显着的 Ki = 1.3 μM。使用它作为先导化合物,合成了一系列新的同源 O 和 S 等排叔胺,结构-活性研究提供了 N-(5-苯氧基戊基)吡咯烷(Ki = 0.18 ± 0.10 μM,用于 [3H] 组胺从大鼠中释放大脑皮层突触体),更重要的是,它在体内是活跃的。将 NO2 取代到苯氧基的对位得到 N-(5-p-硝基苯氧基戊基)吡咯烷,UCL 1972 (Ki = 39 ± 11 nM),ED50 = 1.1 ± 0.6 mg / kg per os in 脑远程小鼠甲基组胺水平。
Imidazolyl derivatives
申请人:Thurieau Alain Christophe
公开号:US20070032653A1
公开(公告)日:2007-02-08
The present invention is directed to imidazolyl derivatives of formula (I) where the substituents are defined in the specification, which are useful as agonists or antagonists of somatostatin receptors.