Diversity-oriented synthesis of imidazo[2,1-<i>a</i>]isoquinolines
作者:Shaoyu Mai、Yixin Luo、Xianyun Huang、Zhenghao Shu、Bingnan Li、Yu Lan、Qiuling Song
DOI:10.1039/c8cc05390a
日期:——
Herein, we report an efficient and practical strategy for the synthesis of five types of imidazo[2,1-a]isoquinolines via Cp*RhIII-catalyzed [4+2] annulation of 2-arylimidazoles and α-diazoketoesters, whose structural and substituted diversity at 5- or 6-position can be precisely controlled by the α-diazoketoester coupling partners. Compared with previous reports, in this study, we merged two attractive
本文中,我们报告了通过Cp * Rh III催化的2-芳基咪唑和α-重氮酮酸酯的[4 + 2]环合反应合成五种咪唑并[ 2,1- a ]异喹啉的有效而实用的策略。可以通过α-重氮酮酸酯偶合伙伴精确控制5位或6位取代的多样性。与以前的报告相比,在这项研究中,我们通过选择合适的酯基团(–COOEt,–COO tBu或–COOiPr)或廉价的添加剂(HOAc或KOAc)。此外,通过几种生物活性化合物的简明合成和代表性药物的后期修饰,证明了这些方法的合成功效。
[EN] PTERIDINONES AS INHIBITORS OF POLO - LIKE KINASE<br/>[FR] PTÉRIDINONES EN TANT QU'INHIBITEURS DE POLO-LIKE KINASE
申请人:ELAN PHARM INC
公开号:WO2011079114A1
公开(公告)日:2011-06-30
The present invention provides compounds having a structure according to Formula (I) or a salt or solvate thereof, wherein ring A, X, R1, R2, R3, R4, R5 and R6, are defined herein. The invention further provides pharmaceutical compositions including the compounds of the invention and methods of making and using the compounds and compositions of the invention, e.g., in the treatment and prevention of various disorders, such as Parkinson's disease.
Rh-Catalyzed Annulation of <i>ortho</i>
-C−H Bonds of 2-Arylimidazoles with 1,4,2-Dioxazol-5-ones toward 5-Arylimidazo[1,2-<i>c</i>
]quinazolines
作者:Xiaopeng Wu、Song Sun、Shengbo Xu、Jiang Cheng
DOI:10.1002/adsc.201701331
日期:2018.3.20
A Rh‐catalyzed unique and direct approach for constructing a series of 5‐arylimidazo[1,2‐c]quinazolines in moderate to excellent yields from simple and readily available 2‐arylimidazoles and 3‐phenyl‐1,4,2‐dioxazol‐5‐ones was described. This procedure proceeds with sequential ortho‐C−H bond amidation and cyclization, which represents a facile and straightforward pathway to access such frameworks.
用Rh催化的独特直接方法从简单易得的2芳基咪唑和3苯基-1,4,2-二恶唑-以中等到优异的收率构建一系列5芳基咪唑[1,2- c ]喹唑啉描述了5分。此过程以顺序的邻-C-H键酰胺化和环化进行,这代表了访问此类框架的便捷途径。
[EN] COMPOUNDS FOR TREATMENT OF CANCER<br/>[FR] COMPOSÉS DESTINÉS AU TRAITEMENT DU CANCER
申请人:GTX INC
公开号:WO2011109059A1
公开(公告)日:2011-09-09
The present invention relates to novel compounds having anti-cancer activity, methods of making these compounds, and their use for treating cancer and drug-resistant tumors, e.g. melanoma, metastatic melanoma, drug resistant melanoma, prostate cancer and drug resistant prostate cancer.
Synthesis of benzoazepine derivatives <i>via</i> Rh(<scp>iii</scp>)-catalyzed inert C(sp<sup>2</sup>)–H functionalization and [4 + 3] annulation
作者:Yuanshuang Xu、Linghua Zhang、Mengyang Liu、Xiaopeng Zhang、Xinying Zhang、Xuesen Fan
DOI:10.1039/c9ob01830a
日期:——
In this paper, a novel and sustainable synthesis of the hitherto unreported 5H-benzo[c]imidazo[1,2-a]azepine-6-carboxylic acids via the cascade reactions of 2-arylimidazoles (1) with methylene-oxetanones (2) is presented. Mechanistically, the formation of the title compounds is triggered by a Rh(iii)-catalyzed C(sp2)-H alkenylation of 1 with 2 followed by an intramolecular N-nucleophilic substitution