3-(4-Fluoropiperidin-3-yl)-2-phenylindoles as High Affinity, Selective, and Orally Bioavailable h5-HT2A Receptor Antagonists
摘要:
The development of very high affinity, selective, and bioavailable h5-HT2A receptor antagonists is described. By investigation of the optimal position for the basic nitrogen in a series of 2-phenyl-3-piperidylindoles, it was found that with the basic nitrogen at the S-position of the piperidine it was not necessary to further substitute the piperidine in order to obtain good binding at h5-HT2A receptors. This meant the compounds no longer had high affinity at the IKr potassium channel, an issue with previous series of 2-aryl-3-(4-piperidyl)indoles. Improvements could be made to oral bioavailability in this series by reduction of the pK(a) of the basic nitrogen, by adding a fluorine atom to the piperidine ring, leading to 3-(4-fluoropiperidin-3-yl)-2-phenyl-1H-indole (17). Metabolic studies with this compound identified oxidation at the B-position of the indole as a major route in vitro and in vivo in rats. Blocking this position with a fluorine atom led to 6-fluoro-3-(4-fluoropiperidin-3-yl)-2-phenyl-1H-indole (22), an antagonist with 0.06 nM affinity for h5-HT2A receptors, with bioavailability of 80% and half-life of 12 h in rats.
Ayyangar, N. R.; Kalkote, U. R.; Nikrad, P. V., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1983, vol. 22, # 9, p. 872 - 877
Exploiting the Reactivity of Isocyanide: Coupling Reaction between Isocyanide and Toluene Derivatives Using the Isocyano Group as an N1 Synthon
作者:Zhiqiang Liu、Xinglu Zhang、Jianxiong Li、Feng Li、Chunju Li、Xueshun Jia、Jian Li
DOI:10.1021/acs.orglett.6b01928
日期:2016.8.19
An unusual oxidative coupling reaction of isocyanide and toluene derivatives using tetrabutylammonium iodide (TBAI) as a catalyst is disclosed. The experimental results and mechanistic study show that the isocyano group acts formally as an N1 synthon during the transformation, thus expanding the reactivity profile of isocyanide.
[EN] PYRROLO [2, 3-B] PYRIDINES OR PYRROLO [2, 3-B] PYRAZINES AS HPK1 INHIBITOR AND THE USE THEREOF<br/>[FR] PYRROLO [2, 3-B] PYRIDINES OU PYRROLO [2, 3-B] PYRAZINES COMME INHIBITEUR DE HPK1 ET LEUR UTILISATION
申请人:BEIGENE LTD
公开号:WO2019238067A1
公开(公告)日:2019-12-19
Disclosed herein is a compound of Formula (AIII) or (III), or a stereoisomer thereof, or a pharmaceutically acceptable salt thereof, and pharmaceutical compositions comprising thereof. Also disclosed is a method of treating HPK1 related disorders or diseases by using the compound disclosed herein.
A highly efficient method to access axially chiral anilides through asymmetricallylicalkylationreaction with achiral Morita-Baylis-Hillman carbonates by using a biscinchona alkaloid catalyst was reported. Through the atroposelective approach, a broad range of axially chiral anilide products with different acyl groups, such as substituted phenyl, naphthyl, alkyl, enyl, styryl, and benzyl, were generated
Synthesis and biological evaluation of novel 5(H)-phenanthridin-6-ones, 5(H)-phenanthridin-6-one diketo acid, and polycyclic aromatic diketo acid analogs as new HIV-1 integrase inhibitors
作者:Shivaputra Patil、Shantaram Kamath、Tino Sanchez、Nouri Neamati、Raymond F. Schinazi、John K. Buolamwini
DOI:10.1016/j.bmc.2006.11.026
日期:2007.2.1
A new series of phenanthridinone derivatives, and diketo acid analogs, as well as relatedphenanthrene and anthracene diketo acids have been synthesized and evaluated as HIV integrase (IN) inhibitors. Several new beta-diketo acid analogs with the phenanthridinone scaffold replaced by phenanthrene, anthracene or pyrene exhibited the highest IN inhibitory potency. There is a general selectivity against
已经合成了一系列新的菲啶酮衍生物和二酮酸类似物,以及相关的菲和蒽二酮酸,并将其作为 HIV 整合酶 (IN) 抑制剂进行了评估。菲啶酮支架被菲、蒽或芘取代的几种新的 β-二酮酸类似物表现出最高的 IN 抑制效力。对整合酶链转移步骤有普遍的选择性。最有效的 IN 是 2,4-dioxo-4-phenanthren-9-yl-butyric acid (27f) 与 IC(50) 的 0.38microM 对整合酶链转移。菲二酮酸 27d-f 比相应的菲啶酮二酮酸 16 (IC(50)=65microM) 更有效 (IC(50)=2.7-0.38microM),表明菲啶酮系统中的极性酰胺桥相对于更亲脂的菲系统降低了抑制活性。这可能与化合物的芳基可能结合到整合酶活性位点的亲脂口袋上,如对接模拟所建议的。分子模型还表明活性位点 Mg(2+) 螯合的有效性有助于 IN 抑制效力。最后,一些有效的化合物抑制
Palladium-Catalyzed Synthesis of Benzimidazoles and Quinazolinones from Common Precursors
作者:Jessie E. R. Sadig、Radleigh Foster、Florian Wakenhut、Michael C. Willis
DOI:10.1021/jo301805d
日期:2012.11.2
utilized as complementary precursors for the synthesis of important heterocycles. The synthesis of N-substituted benzimidazoles was possible from the palladium-catalyzed reaction of both classes of substrate with a variety of N-nucleophiles. The use of the imidate precursor for the synthesis of N-substituted quinazolinones by incorporation of a palladium-catalyzed aminocarbonylation reaction has also been