852227-92-0Relevant academic research and scientific papers
Ruthenium-Catalyzed meta-Selective CAr-H Bond Formylation of Arenes
Jia, Chunqi,Wu, Nini,Cai, Xiaofeng,Li, Gang,Zhong, Lei,Zou, Lei,Cui, Xiuling
, p. 4536 - 4542 (2020/04/09)
The meta-CAr-H bond formylation of arenes has been achieved using CHBr3 as a formyl source in the presence of [Ru(p-cym)(OAc)2] as a catalyst. This method provides efficient access to the preparation of various meta-substituted aromatic compounds, such as alcohols, ethers, amines, nitriles, alkenes, halogens, carboxylic acids, and their derivatives, through transformation of the versatile formyl group. Furthermore, mechanistic studies show that the key active species is a pentagonal ruthenacycle complex.
Cu(II)-catalyzed C-N coupling of (hetero)aryl halides and N-Nucleophiles promoted by α-benzoin oxime
Yuan, Chunling,Zhang, Lei,Zhao, Yingdai
, (2019/11/28)
We first reported the new application of a translate metal chelating ligand α-benzoin oxime for improving Cu-catalyzed C-N coupling reactions. The system could catalyse coupling reactions of (hetero)aryl halides with a wide of nucleophiles (e.g., azoles, piperidine, pyrrolidine and amino acids) in moderate to excellent yields. The protocol allows rapid access to the most common scaαolds found in FDA-approved pharmaceuticals.
L -(-) -Quebrachitol as a Ligand for Selective Copper(0)-Catalyzed N-Arylation of Nitrogen-Containing Heterocycles
Zhou, Qifan,Du, Fangyu,Chen, Yuanguang,Fu, Yang,Sun, Wenjiao,Wu, Ying,Chen, Guoliang
, p. 8160 - 8167 (2019/06/28)
l-(-)-Quebrachitol (QCT) has been found as a ligand of copper powder for selective N-arylation of nitrogen-containing heterocycles with aryl halides. Furthermore, another potential catalytic system (copper powder/QCT/t-BuOK) was successfully adapted to unactivated aryl chlorides.
α-d-Galacturonic Acid as Natural Ligand for Selective Copper-Catalyzed N-Arylation of N-Containing Heterocycles
Yuan, Chunling,Zhao, Yingdai,Zheng, Li
, p. 2173 - 2180 (2019/11/25)
The first application of α-d-galacturonic acid hydrate (GalA) is reported here, as a potential O-donor ligand. The C-N couplings of N-heterocycles with aryl halides or arylboronic acids could be readily conducted and exhibited good functional group tolerance with characters of selectivity. These N-Arylazoles allow rapid access to several pharmaceutical intermediates and can be easily transformed into a variety of other interesting scaffolds as well.
BROAD SPECTRUM ANTIVIRAL COMPOSITIONS AND METHODS
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Page/Page column 36, (2019/05/10)
Novel thiazole- and isoquinoline- containing compounds are presented that are useful for treating and/or preventing broad-spectrum viral infections. Methods of treating and/or preventing broad-specturm viral infections are also presented. These compounds have shown inhibitio of HCMV, influenza viruses, Zika virus, BK Virus and RSV replication in cell-based assays.
ANTI-HCMV COMPOSITIONS AND METHODS
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Page/Page column 54; 55, (2016/06/06)
Novel compounds useful for treating and/or preventing HCMV infections are provided.
Synthesis and characterization of Sant-75 derivatives as Hedgehog-pathway inhibitors
Che, Chao,Li, Song,Yang, Bo,Xin, Shengchang,Yu, Zhixiong,Shao, Taofeng,Tao, Chuanye,Lin, Shuo,Yang, Zhen
scheme or table, p. 841 - 849 (2012/07/28)
Sant-75 is a newly identified potent inhibitor of the hedgehog pathway. We designed a diversity-oriented synthesis program, and synthesized a series of Sant-75 analogues, which lays the foundation for further investigation of the structure-activity relationship of this important class of hedgehog-pathway inhibitors.
6-O-acyl ketolide antibacterials
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, (2008/06/13)
6-O-Acyl ketolide antibacterials of the formula: wherein R1, R2, R3, R4, W, X, X′, Y, and Y′ are as described herein and in which the substituents have the meaning indicated in the description. These compounds are useful as antibacterial agents.
6-O-carbamoyl ketolide antibacterials
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, (2008/06/13)
6-O-Carbamoyl ketolide antibacterials of the formula: wherein R1, R2, R3, R4, R5, R6, X, X′, Y, and Y′ are as described herein and in which the substituents have the meaning indicated in the description. These compounds are useful as antibacterial agents.
6-0-carbamoyl ketolide antibacterials
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, (2008/06/13)
6-O-Carbamoyl ketolide antibacterials of the formula: wherein R1, R2, R3, R4, R5, R6, X, X′, Y, and Y′ are as described herein and in which the substituents have the meaning indicated in the description. These compounds are useful as antibacterial agents.
