471929-86-9Relevant articles and documents
Structural variations of 1-(4-(phenoxymethyl)benzyl)piperidines as nonimidazole histamine H3 receptor antagonists
Miko, Tibor,Ligneau, Xavier,Pertz, Heinz H.,Arrang, Jean-Michel,Ganellin, C. Robin,Schwartz, Jean-Charles,Schunack, Walter,Stark, Holger
, p. 2727 - 2736 (2004)
Recent bioisoteric replacements in histamine H3 receptor ligands with an exchange of the imidazole moiety by a piperidino group as well as of the trimethylene chain in 4-((3-phenoxy)propyl)-lH-imidazole derivatives (proxifan class) by an α,α′-xylendiyl linker represents the starting point in the development of 1-(4-(phenoxymethyl)benzyl) piperidines as a new class of nonimidazole histamine H3 receptor antagonists. According to different strategies in optimization of imidazole-containing antagonists the central benzyl phenyl ether moiety was replaced by numerous other polar functionalities. Additionally, the ortho- and meta-analogues of the lead were synthesized to determine the influence of the position of the piperidinomethyl substituent. The new compounds were tested in an in vitro binding assay for their affinities for cloned human H3 receptors stably expressed in CHO-K1 cells and for their oral in vivo potencies brain in a functional screening assay in the brain of mice. Additionally, activities of selected compounds were determined in the guinea-pig ileum functional test model. In contrast to the analogues ortho-substituted compounds all other compounds maintained respectable affinities for the human H 3 receptor (-logKi values 6.3-7.5). Despite the results from other classes of compounds the 4-methyl substituted derivatives generally displayed higher affinities than the corresponding 4-chloro substituted compounds. In vivo only the inverse phenyl benzyl ether (3) showed worthwhile antagonist potencies.
IMIDAZO [2, 1-F] [1, 2, 4] TRIAZIN-4-AMINE DERIVATIVES AS TLR7 AGONIST
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, (2020/08/22)
Disclosed herein is an imidazo [2, 1-f] [1, 2, 4] triazin-4-amine derivative or a stereoisomer thereof, or a pharmaceutically acceptable salt thereof useful as a TLR7 agonist, and a pharmaceutical composition comprising the same. Also disclosed herein is a method of treating cancer using the imidazo [2, 1-f] [1, 2, 4] triazin-4-amine derivative or a stereoisomer thereof, or a pharmaceutically acceptable salt thereof as TLR7 agonist.
Hydroxamic acid derivative, and preparation method and application thereof
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Paragraph 0153; 0155; 0156; 0157, (2019/12/25)
The invention relates to the technical field of enzyme inhibitors, and especially relates to a hydroxamic acid derivative, and a preparation method and an application thereof. A hydroxamic acid groupin the hydroxamic acid derivative is chelated with activ