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203198-39-4

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203198-39-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203198-39-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,1,9 and 8 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 203198-39:
(8*2)+(7*0)+(6*3)+(5*1)+(4*9)+(3*8)+(2*3)+(1*9)=114
114 % 10 = 4
So 203198-39-4 is a valid CAS Registry Number.

203198-39-4Relevant articles and documents

Synthesis, Biological Activity, and Molecular Modeling Studies of Pyrazole and Triazole Derivatives as Selective COX-2 Inhibitors

Assali, Mohyeddin,Abualhasan, Murad,Sawaftah, Hadeel,Hawash, Mohammed,Mousa, Ahmed

, (2020)

Series of diaryl-based pyrazole and triazole derivatives were designed and synthesized in a facile synthetic approach in order to produce selective COX-2 inhibitor. These series of derivatives were synthesized by different reactions like Vilsmeier-Haack reaction and click reaction. In vitro COX-1 and COX-2 inhibition studies showed that five compounds were potent and selective inhibitors of the COX-2 isozyme with IC50 values in 0.551-0.002 μM range. In the diarylpyrazole derivatives, compound 4b showed the best inhibitory activity against COX-2 with IC50 = 0.017 μM as one of the N-aromatic rings was substituted with sulfonamide and the other aromatic ring was unsubstituted. However, when the N-aromatic ring was substituted with sulfonamide and the other aromatic ring was substituted with sulfone (compound 4d), best COX-2 selectivity was achieved (IC50 = 0.098 μM, SI = 54.847). In the diaryltriazole derivatives, compound 15a showed the best inhibitory activity in comparison to all synthesized compounds including the reference celecoxib with IC50 = 0.002 μM and SI = 162.5 as it could better fit the extra hydrophobic pocket which is present in the COX-2 enzyme. Moreover, the docking study supports the obtained SAR data and binding similarities and differences on both isozymes.

1,2-Diarylindole derivatives, processes for their preparation and their uses in therapeutics

-

, (2008/06/13)

The present invention relates to the derivatives of the formula STR1 and to their use in therapeutics, especially as drugs with anti-inflammatory and analgesic properties.

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