Transition metal-free photocatalytic radical annulation of 2-cyanoaryl acrylamides with difluoromethyl radicals to assemble 4-amino-quinolinone derivatives
Transition metal-free photocatalytic radical annulation of 2-cyanoaryl acrylamides with difluoromethyl radicals to assemble 4-amino-quinolinone derivatives
Remote<i>meta</i>-CH Olefination of Phenylacetic Acids Directed by a Versatile U-Shaped Template
作者:Youqian Deng、Jin-Quan Yu
DOI:10.1002/anie.201409860
日期:2015.1.12
meta‐CHolefination of phenylaceticacid derivatives has been achieved using a commercially available nitrile‐containing template. The identification of N‐formyl‐protected glycine as the ligand (Formyl‐Gly‐OH) was crucial for the development of this reaction. Versatility of the template approach in accommodating macrocyclopalladation processes with different ring sizes is demonstrated.
Rhodium(III)-Catalyzed Direct Cyanation of Aromatic C–H Bond to Form 2-(Alkylamino)benzonitriles Using <i>N</i>-Nitroso As Directing Group
作者:Jiawei Dong、Zhongjie Wu、Zhengyi Liu、Ping Liu、Peipei Sun
DOI:10.1021/acs.joc.5b01666
日期:2015.12.18
2-(Alkylamino)benzonitriles were synthesized via a rhodium-catalyzed cyanation on the aryl C–H bond and subsequent denitrosation of N-nitrosoarylamines using a removable nitroso as the directing group, in which N-cyano-N-phenyl-p-methylbenzenesulfonamide (NCTS) was used as the “CN” source. Various substituents on the aryl ring and amino group of N-nitrosoarylamines tolerated the reaction, and the corresponding
Imidazoquinoline derivatives of the formula ##STR1## (wherein X may be O or S) provide selective cyclic guanosine 3',5' monophosphate (cGMP)--specific phosphodiesterase (PDE) inhibitory activity. The compounds are useful for treating or ameliorating cardiovascular disease such as thrombosis, angina pectoris, hypertension, heart failure and arterial sclerosis, as well as asthma, impotence and the like.
Method of inhibiting neoplastic cells with imidazoquinazoline derivatives
申请人:——
公开号:US20020193389A1
公开(公告)日:2002-12-19
A method for inhibiting neoplasia, particularly cancerous and precancerous lesions by exposing the affected cells to imidazoquinazoline derivatives.
通过将受影响的细胞暴露于咪唑喹啉衍生物,抑制新生物的方法,特别是癌症和癌前病变。
One-pot multistep synthesis of 3,4-fused isoquinolin-1(2H)-one analogs
作者:Lianhai Li、Waepril Kimberly S. Chua
DOI:10.1016/j.tetlet.2011.01.089
日期:2011.4
We have developed a robust approach for the synthesis of 3,4-fused isoquinolin-1(2H)-one analogs. A benzonitrile or a nicotinonitrile bearing an ortho-substituent, such as –OH, –SH, or –NHR (R = alkyl or aryl) can be deprotonated by KOtBu and then reacted with methyl 2-(bromomethyl)benzoate (8) to form its corresponding O-, S-, or N-alkylation product. The product thus formed is then treated with KOtBu
我们已经开发了一种强大的方法,用于合成3,4-融合的异喹啉-1(2H)-one类似物。带有邻位取代基(例如–OH,–SH或–NHR(R =烷基或芳基))的苄腈或烟腈可以通过KO t Bu进行质子化,然后与2-(溴甲基)苯甲酸甲酯反应(8)形成其相应的O-,S-或N-烷基化产物。然后将如此形成的产物再次用KO t Bu处理以引发级联过程,该级联过程将导致其相应的3,4-稠合的异喹啉-1(2H)-一的形成。这种多步合成以及最终产物的纯化可以一锅法完成。