通过Rh(III)催化的异喹诺酮与重氮酮酸酯的氧化[4 +1]环加成,然后进行原位脱酰反应,制备异吲哚并[2,1 - b ]异喹啉-7-羧酸酯衍生物的新颖实用的方法是披露。有趣的是,标题化合物可以很容易地通过去酯化反应转变为异吲哚并[2,1 - b ]异喹啉-5(7 H)-,这是一种罗塞他汀类似物,经常在各种天然生物碱和合成药物分子中发现。
Substituted furo[2,3-B] pyridine derivatives as cannabinoid-1 receptor modulators
申请人:Clements Matthew J.
公开号:US20080269279A1
公开(公告)日:2008-10-30
Novel compounds of the structural formula (I) are antagonists and/or inverse agonists of the Cannabinoid-1 (CB1) receptor and are useful in the treatment, prevention and suppression of diseases mediated by the CB1 receptor. The compounds of the present invention are useful as centrally acting drugs in the treatment of psychosis, memory deficits, cognitive disorders, Alzheimer's disease, migraine, neuropathy, neuro-inflammatory disorders including multiple sclerosis and Guillain-Barre syndrome and the inflammatory sequelae of viral encephalitis, cerebral vascular accidents, and head trauma, anxiety disorders, stress, epilepsy, Parkinson's disease, movement disorders, and schizophrenia. The compounds are also useful for the treatment of substance abuse disorders, the treatment of obesity or eating disorders, as well as the treatment of asthma, constipation, chronic intestinal pseudo-obstruction, cirrhosis of the liver, non-alcoholic fatty liver disease (NAFLD), non-alcoholic steatohepatitis (NASH), and the promotion of wakefulness.
Palladium-Catalyzed Oxidative Cyclocarbonylation of Isoquinolones with CO via C−H/N−H Bond Cleavage: Easy Access to Isoindolo[2,1-<i>b</i>
]isoquinoline-5,7-dione Derivatives
作者:Shenghai Guo、Fang Wang、Lincong Sun、Xinying Zhang、Xuesen Fan
DOI:10.1002/adsc.201800347
日期:2018.7.4
An efficient and practical synthesis of isoindolo[2,1‐b]isoquinoline‐5,7‐diones through Pd‐catalyzed C−H activation/carbonylative annulation of isoquinolones with CO (1 atm) is presented. Deuterium‐labeling experiments revealed that the aryl C(sp2)−H bondactivation might be the rate‐determining step. More interestingly, the title compounds could also be prepared directly from the cascade reaction
提出了一种通过Pd催化的CH活化/异喹啉酮与CO(1 atm)羰基环化反应有效合成异吲哚并[2,1 – b ]异喹啉-5,7-二酮的方法。氘标记实验表明,芳基C(sp 2)-H键的活化可能是决定速率的步骤。更有趣的是,标题化合物也可以直接由N-甲氧基苯甲酰胺和内部炔烃(作为异喹诺酮的前体)在一氧化碳的大气压下,通过Rh / Pd中继催化,以用户友好的方式级联反应制备。。
Development of a Traceless Directing Group: Cp*-Free Cobalt-Catalyzed C–H Activation/Annulations to Access Isoquinolinones
作者:Minghui Liu、Jun-Long Niu、Dandan Yang、Mao-Ping Song
DOI:10.1021/acs.joc.9b03073
日期:2020.3.20
A new tracelessdirectinggroup, 2-(hydroxymethyl)pyridine, has been reported for the Cp*-free cobalt-catalyzedC-H activation/annulation reaction to synthesize isoquinolinones. The reaction exhibits good functional group tolerance, affording products in good to excellent isolated yields under mild conditions. Notably, the directinggroup can be removed directly in situ along the catalytic process
A direct cross-coupling reaction of electron-deficient alkenes using an oxidizing directing group
作者:Chunbing Yu、Feifei Li、Jian Zhang、Guofu Zhong
DOI:10.1039/c6cc07064g
日期:——
An oxidant-free cross-couplingreaction of electron-deficient alkenes is reported, using inexpensive ruthenium catalyst. With the assistance of the oxidizing directing group CONH(OMe), this protocol provides a mild, straightforward and efficient...
Rhodium(<scp>iii</scp>)-catalyzed oxidative annulation of isoquinolones with allyl alcohols: synthesis of isoindolo[2,1-<i>b</i>]isoquinolin-5(7<i>H</i>)-ones
作者:Jinyuan Jiang、Jidan Liu、Zhenke Yang、Jieying Zheng、Xin Tian、Liyao Zheng、Zhao-Qing Liu
DOI:10.1039/d1ob02305e
日期:——
An efficient rhodium(III)-catalyzed direct C–H oxidative annulation of isoquinolones with allyl alcohols as C1 synthons has been successfully developed. This protocol enables the straightforward synthesis of structurally diverse isoindolo[2,1-b]isoquinolin-5(7H)-ones with high atom economy, tolerates a broad spectrum of functionalities, and is applicable to one-pot operation from readily available
已经成功开发了一种高效的铑(III)催化的异喹诺酮类与烯丙醇作为 C1 合成子的直接 C-H 氧化环化。该协议能够直接合成结构多样的 isoindolo [2,1- b ]isoquinolin-5(7 H )-ones,具有高原子经济性,耐受广泛的功能,适用于从现成的N的一锅操作-甲氧基苯甲酰胺。