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300862-04-8

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300862-04-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 300862-04-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,0,8,6 and 2 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 300862-04:
(8*3)+(7*0)+(6*0)+(5*8)+(4*6)+(3*2)+(2*0)+(1*4)=98
98 % 10 = 8
So 300862-04-8 is a valid CAS Registry Number.

300862-04-8Relevant articles and documents

The Mpro structure-based modifications of ebselen derivatives for improved antiviral activity against SARS-CoV-2 virus

Jin, Lin,Luo, Jiajie,Qiao, Zhen,Wang, KeWei,Wei, Ningning,Zhang, Hongyi,Zhang, Yanru

, (2021/11/09)

The main protease (Mpro or 3CLpro) of SARS-CoV-2 virus is a cysteine enzyme critical for viral replication and transcription, thus indicating a potential target for antiviral therapy. A recent repurposing effort has identified ebselen, a multifunctional drug candidate as an inhibitor of Mpro. Our docking of ebselen to the binding pocket of Mpro crystal structure suggests a noncovalent interaction for improvement of potency, antiviral activity and selectivity. To test this hypothesis, we designed and synthesized ebselen derivatives aimed at enhancing their non-covalent bonds within Mpro. The inhibition of Mpro by ebselen derivatives (0.3 μM) was screened in both HPLC and FRET assays. Nine ebselen derivatives (EBs) exhibited stronger inhibitory effect on Mpro with IC50 of 0.07–0.38 μM. Further evaluation of three derivatives showed that EB2-7 exhibited the most potent inhibition of SARS-CoV-2 viral replication with an IC50 value of 4.08 μM in HPAepiC cells, as compared to the prototype ebselen at 24.61 μM. Mechanistically, EB2-7 functions as a noncovalent Mpro inhibitor in LC-MS/MS assay. Taken together, our identification of ebselen derivatives with improved antiviral activity may lead to developmental potential for treatment of COVID-19 and SARS-CoV-2 infection.

N-Phenylbenzamide derivatives as alternative oxidase inhibitors: Synthesis, molecular properties, 1H-STD NMR, and QSAR

Barsottini, Mario R. O.,Carazzolle, Marcelo F.,Costa, Paulo C. S.,Evangelista, Joel S.,Miranda, Paulo C. M. L.,Nascimento, Andrey F. Z.,Pereira, Gon?alo A. G.,Pires, Bárbara A.,Rocco, Silvana A.,Sfor?a, Maurício L.,Silva, Jaqueline S.,Vieira, Maria L. L.,Zeri, Ana C. M.

, (2020/02/27)

In the present work, 117 N-phenylbenzamides (NPDs) were prepared and evaluated against recombinant AOX from the fungal pathogen Moniliophthora perniciosa. 1H, 13C NMR, FTIR, and mass spectra provided structural information on NPDs. The library compounds were tested as Alternative Oxidase inhibitors in two different assays using the model yeast Pichia pastoris: cell growth and oxygen consumption assays. The most active compound, 3FH, was further characterized by DRX and 1H-NMR-STD. Single crystal X-ray diffraction showed intra- and intermolecular interactions of 3FH in solid-state and elucidated its 3D structural configuration. 1H-NMR-STD allowed us to derive protein-ligand interactions in a membrane-mimetic system and evidenced an outstanding interaction of 3FH with this enzyme. Results of both biological assays were used as input to Quantitative Structure-Activity Relationship models, which highlighted the more important molecular fragments contributions for protein-ligand interaction.

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