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64965-49-7

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64965-49-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64965-49-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,9,6 and 5 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 64965-49:
(7*6)+(6*4)+(5*9)+(4*6)+(3*5)+(2*4)+(1*9)=167
167 % 10 = 7
So 64965-49-7 is a valid CAS Registry Number.

64965-49-7Relevant articles and documents

Photoredox halogenation of quinolones: The dual role of halo-fluorescein dyes

Ritu,Kumar, Sharvan,Chauhan, Parul,Jain, Nidhi

, p. 4585 - 4592 (2021/05/31)

An efficient C-3 halogenation of quinolin-4-ones is reported with halogenated fluorescein dyes which serve both as a halogen source and photocatalyst. This reaction shows broad substrate scope and gives good to excellent yields of C-3 brominated/iodinated

Discovery, synthesis, and optimization of antimalarial 4(1 H)-quinolone-3-diarylethers

Nilsen, Aaron,Miley, Galen P.,Forquer, Isaac P.,Mather, Michael W.,Katneni, Kasiram,Li, Yuexin,Pou, Sovitj,Pershing, April M.,Stickles, Allison M.,Ryan, Eileen,Kelly, Jane Xu,Doggett, J. Stone,White, Karen L.,Hinrichs, David J.,Winter, Rolf W.,Charman, Susan A.,Zakharov, Lev N.,Bathurst, Ian,Burrows, Jeremy N.,Vaidya, Akhil B.,Riscoe, Michael K.

, p. 3818 - 3834 (2014/05/20)

The historical antimalarial compound endochin served as a structural lead for optimization. Endochin-like quinolones (ELQ) were prepared by a novel chemical route and assessed for in vitro activity against multidrug resistant strains of Plasmodium falciparum and against malaria infections in mice. Here we describe the pathway to discovery of a potent class of orally active antimalarial 4(1H)-quinolone-3-diarylethers. The initial prototype, ELQ-233, exhibited low nanomolar IC50 values against all tested strains including clinical isolates harboring resistance to atovaquone. ELQ-271 represented the next critical step in the iterative optimization process, as it was stable to metabolism and highly effective in vivo. Continued analoging revealed that the substitution pattern on the benzenoid ring of the quinolone core significantly influenced reactivity with the host enzyme. This finding led to the rational design of highly selective ELQs with outstanding oral efficacy against murine malaria that is superior to established antimalarials chloroquine and atovaquone.

Divergent route to access structurally diverse 4-quinolones via mono or sequential cross-couplings

Cross, R. Matthew,Manetsch, Roman

supporting information; experimental part, p. 8654 - 8657 (2011/03/20)

A divergent route was developed to access 3-iodo- and 6-chloro-3-iodo-4(1H) -quinolones for further elaboration via mono and/or sequential Suzuki-Miyaura cross-coupling to generate novel and medicinally important 4(1H)-quinolones. Copper- and palladium-ca

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