新型2,3,4,9-四氢-1 H-吡啶并[3,4- b ]吲哚三唑衍生物作为有效TRPV1拮抗剂的设计,合成及生物学评价
摘要:
本文报道的是在以2,3,4,9-四氢-1 H-吡啶并[3,4- b ]吲哚为A区且三唑为B-的情况下构建的一类TRPV1拮抗剂的设计,合成和药理学评估。地区。SAR分析表明,与相应的二氢吲哚类似物相比,2,3,4,9-四氢-1 H-吡啶并[3,4- b ]吲哚类似物显示出对辣椒素激活hTRPV1的优异拮抗作用,并显示出更好的效价。该设计的优化导致最终鉴定出2-((1-(2-(三氟甲基)苯基)-1 H -1,2,3-三唑-4-基)甲基)-2,3,4,9 -tetrahydro-1 H -pyrido [3,4- b ]吲哚(6克),一种有效的TRPV1拮抗剂。在体外,使用表达重组人TRPV1通道的细胞,6g表现出被辣椒素激活的强烈拮抗作用(IC 50 = 0.075μM),并且仅部分阻断了TRPV1的酸激活。在体内,6g在辣椒素诱导和热诱导的疼痛模型中显示出良好的疗效,并且几乎没有热疗的副
3-Silaazetidine: An Unexplored yet Versatile Organosilane Species for Ring Expansion toward Silaazacycles
作者:Wanshu Wang、Song Zhou、Linjie Li、Yuanhang He、Xue Dong、Lu Gao、Qiantao Wang、Zhenlei Song
DOI:10.1021/jacs.1c04667
日期:2021.7.28
Small-ring silacycles are important organosilane species in main-group chemistry and have found numerous applications in organic synthesis. 3-Silaazetidine, a unique small silacycle bearing silicon and nitrogen atoms, has not been adequately explored due to the lack of a general synthetic scheme and its sensitivity to air. Here, we describe that 3-silaazetidine can be easily prepared in situ from diverse
Access to <i>gem</i>-Difluoro Olefins via C–H Functionalization and Dual Role of Anilines
作者:Zhen Yang、Chao Pei、Rene M. Koenigs
DOI:10.1021/acs.orglett.0c02568
日期:2020.9.18
In this Letter, we describe a simple, practical approach in which cheap CuI was used as a catalyst to introduce a gem-difluoro olefin onto simple electron-rich aniline derivatives in good yield via direct C–H functionalization and a subsequent HF elimination reaction. Detailed mechanistic studies point at a dual role of aniline derivatives in this reaction, which serve as a substrate and a basic promoter
Palladium catalysed tandem cyclisation–anion capture. Part 7: Synthesis of derivatives of α-amino esters, nitrogen heterocycles and β-aryl/heteroaryl ethylamines via in situ generated vinylstannanes
作者:Adele Casaschi、Ronald Grigg、J.M Sansano
DOI:10.1016/s0040-4020(00)01030-9
日期:2001.1
terminal alkynes containing a β-N atom affords mainly α-vinylstannanes which serve as anion capture agents in palladium catalysed cyclisation–anion capture processes leading to derivatives of α-amino esters, nitrogen heterocycles and β-aryl/heteroaryl ethylamines in good yield.
A series of novel 3-(indol-1-yl)prop-1-yn-1-yl-substituted phthalazines and related azines was prepared via a concise pathway by palladium-catalyzed cross-coupling of appropriate halo-azines and N-propargylindoles. Some of the compounds exhibited significant antitumoractivity in an in-vitro assay.
Intramolecular [4+2] cycloaddition reactions of indolylalkylpyridazines: synthesis of annulated carbazoles
作者:Norbert Haider、Johann Käferböck
DOI:10.1016/j.tet.2004.06.008
日期:2004.7
Mono- and bicyclic 1,2-diazines tethered to indole dienophiles by alkylene chains were found to undergo thermally induced intramolecular Diels–Alder reactions with inverse electron demand, affording tetra- and pentacyclic condensed carbazoles.