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2653-14-7

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2653-14-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2653-14-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,6,5 and 3 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 2653-14:
(6*2)+(5*6)+(4*5)+(3*3)+(2*1)+(1*4)=77
77 % 10 = 7
So 2653-14-7 is a valid CAS Registry Number.

2653-14-7Relevant articles and documents

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Frerichs

, p. 220 (1903)

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Discovery of novel N -phenylphenoxyacetamide derivatives as EthR inhibitors and ethionamide boosters by combining high-throughput screening and synthesis

Flipo, Marion,Willand, Nicolas,Lecat-Guillet, Nathalie,Hounsou, Candide,Desroses, Matthieu,Leroux, Florence,Lens, Zoé,Villeret, Vincent,Wohlk?nig, Alexandre,Wintjens, René,Christophe, Thierry,Kyoung Jeon, Hee,Locht, Camille,Brodin, Priscille,Baulard, Alain R,Déprez, Benoit

supporting information; experimental part, p. 6391 - 6402 (2012/10/07)

In this paper, we describe the screening of a 14640-compound library using a novel whole mycobacteria phenotypic assay to discover inhibitors of EthR, a transcriptional repressor implicated in the innate resistance of Mycobacterium tuberculosis to the second-line antituberculosis drug ethionamide. From this screening a new chemical family of EthR inhibitors bearing an N-phenylphenoxyacetamide motif was identified. The X-ray structure of the most potent compound crystallized with EthR inspired the synthesis of a 960-member focused library. These compounds were tested in vitro using a rapid thermal shift assay on EthR to accelerate the optimization. The best compounds were synthesized on a larger scale and confirmed as potent ethionamide boosters on M. tuberculosis-infected macrophages. Finally, the cocrystallization of the best optimized analogue with EthR revealed an unexpected reorientation of the ligand in the binding pocket.

Synthesis of substituted oxindoles from α-chloroacetanilides via palladium-catalyzed C - H functionalization

Hennessy, Edward J.,Buchwald, Stephen L.

, p. 12084 - 12085 (2007/10/03)

A novel method for the synthesis of oxindoles is described. In the presence of catalytic palladium acetate and 2-(di-tert-butylphosphino)biphenyl, α-chloroacetanilides are converted to oxindoles in good to excellent yields with high functional group compatibility using triethylamine as a stoichiometric base. The cyclization is highly regioselective, obviating the need for prefunctionalized arenes. Plausible mechanistic pathways for the reaction are discussed. Copyright

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