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ethyl 4-(4-nitrophenyl)-2,4-dioxobutanoate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

54808-56-9

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54808-56-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54808-56-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,8,0 and 8 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 54808-56:
(7*5)+(6*4)+(5*8)+(4*0)+(3*8)+(2*5)+(1*6)=139
139 % 10 = 9
So 54808-56-9 is a valid CAS Registry Number.

54808-56-9Relevant academic research and scientific papers

Lewis acid-promoted synthesis of highly substituted pyrrole-fused benzoxazinones and quinoxalinones

Selvendran, Suresh,Rajendran, Saravanakumar

supporting information, p. 437 - 445 (2020/10/22)

A synthesis of a series of novel fused tricyclic heterocyclic compounds has been achieved in one-pot reaction set up starting from (E)-3-(2-oxo-2-phenylethylidene)indolin-2-one and 1,4-benzoxazinone/quinoxalinone derivatives promoted by tin(IV) chloride.

Novel N-benzylpiperidine derivatives of 5-arylisoxazole-3-carboxamides as anti-Alzheimer's agents

Saeedi, Mina,Felegari, Peyman,Iraji, Aida,Hariri, Roshanak,Rastegari, Arezoo,Mirfazli, S. Sara,Edraki, Najmeh,Firuzi, Omidreza,Mahdavi, Mohammad,Akbarzadeh, Tahmineh

, (2020/11/30)

The complex pathophysiology of Alzheimer's disease (AD) has prompted researchers to develop multitarget-directed molecules to find an effective therapy against the disease. In this context, a novel series of N-(1-benzylpiperidin-4-yl)-5-arylisoxazole-3-ca

Design and Synthesis of Novel Arylisoxazole-Chromenone Carboxamides: Investigation of Biological Activities Associated with Alzheimer's Disease

Akbarzadeh, Tahmineh,Edraki, Najmeh,Firuzi, Omidreza,Hariri, Roshanak,Mahdavi, Mohammad,Mirfazli, Seyedeh Sara,Rastegari, Arezoo,Saeedi, Mina

, (2020/04/29)

A novel series of hybrid arylisoxazole-chromenone carboxamides were designed, synthesized, and evaluated for their cholinesterase (ChE) inhibitory activity based on the modified Ellman's method. Among synthesized compounds, 5-(3-nitrophenyl)-N-{4-[(2-oxo-

Substituted pyrazole-containing compound, preparation method and applications thereof

-

Paragraph 0203-0205, (2019/02/13)

The present invention provides a substituted pyrazole-containing compound, a preparation method and applications thereof, wherein the compound or a pharmaceutically acceptable salt thereof has a structure represented by a formula X defined in the specific

Synthesis, biological evaluation and in silico modelling studies of 1,3,5-trisubstituted pyrazoles carrying benzenesulfonamide as potential anticancer agents and selective cancer-associated hCA IX isoenzyme inhibitors

Yamali, Cem,Gul, Halise Inci,Ece, Abdulilah,Bua, Silvia,Angeli, Andrea,Sakagami, Hiroshi,Sahin, Ertan,Supuran, Claudiu T.

, (2019/09/10)

Inhibition of carbonic anhydrases (CAs, EC 4.2.1.1) has clinical importance for the treatment of several diseases. They participate in crucial regulatory mechanisms for balancing intracellular and extracellular pH of the cells. Among CA isoforms, selectiv

NAMPT INHIBITORS

-

Paragraph 5325, (2017/03/21)

Disclosed are compounds which inhibit the activity of NAMPT, compositions containing the compounds and methods of treating diseases during which NAMPT is expressed.

Synthesis of 3-(1,2-dioxoethyl)- and 2,3-dicarbonyl-containing pyrroles

Galenko, Alexey V.,Khlebnikov, Alexander F.,Novikov, Mikhail S.,Avdontceva, Margarita S.

, p. 1940 - 1951 (2015/03/30)

The transition metal-catalyzed reaction of 2H-azirines with 1,2,4-tricarbonyl compounds leads to 3-(1,2-dioxoethyl)- and 2,3-dicarbonyl-pyrrole derivatives, useful building blocks for the preparation of 3-heterocyclyl pyrroles and pyrroles fused with heterocycles. The influence of catalysts and the reaction conditions on the yields of pyrroles and the regioselectivity of the reaction were studied. Experimental and theoretical results suggest that the reaction proceeds via the formation of an intermediate azirine-metal complex and subsequent nucleophilic N-C3 bond cleavage.

As inhibitor and dichloropyridazine NAMPT polypyridine deriv.

-

Paragraph 0922, (2017/04/03)

Disclosed are compounds which inhibit the activity of NAMPT, compositions containing the compounds and methods of treating diseases during which NAMPT is expressed.

Design and synthesis of phenylisoxazole derivatives as novel human acrosin inhibitors

Zhao, Juntao,Tian, Wei,Qi, Jingjing,Lv, Diya,Liu, Yang,Jiang, Yan,Dong, Guoqiang,Chen, Qianqian,Zhou, Youjun,Zhu, Ju,Wang, Heling,Sheng, Chunquan,Lv, Jiaguo

supporting information, p. 2802 - 2806 (2014/06/10)

Human acrosin is an attractive target for the discovery of novel male contraceptives. Isoxazole derivative ISO-1, a small-molecule weak human acrosin inhibitor, was used as the starting point for lead optimization. After two rounds of structure-based inhibitor design, a highly potent inhibitor B6 (IC50 = 1.44 μM) was successfully identified, which showed good selectivity over trypsin and represents one of the most active human acrosin inhibitors up to date.

Concise synthesis of α-(hydroxymethyl) alkyl and aryl vinyl ketones

Kraem, Jihene Ben,Amri, Hassen

, p. 110 - 117 (2012/10/30)

2,4-Diketoesters 2 have first been reported as starting materials for the synthesis of a new class of α-hydroxymethyl-α,β-unsaturated ketones 3. Thus, under heterogeneous liquid-liquid medium in the presence of concentrated aqueous potassium carbonate as a base, both aliphatic and aromatic 2,4-dioxoalkanoates 2 react with aqueous formaldehyde to afford the corresponding ketones 3 in fair to good yields. Copyright Taylor & Francis Group, LLC.

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