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254114-37-9

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254114-37-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 254114-37-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,4,1,1 and 4 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 254114-37:
(8*2)+(7*5)+(6*4)+(5*1)+(4*1)+(3*4)+(2*3)+(1*7)=109
109 % 10 = 9
So 254114-37-9 is a valid CAS Registry Number.

254114-37-9Relevant articles and documents

Synthesis of C-ribosyl imidazo[2,1-f][1,2,4]triazines as inhibitors of adenosine and AMP deaminases

Dudfield, Philip J.,Le, Van-Due,Lindell, Stephen D.,Rees, Charles W.

, p. 2929 - 2936 (1999)

The 3-β-D-ribofuranoside 6 of the new imidazo[2,1-f][1,2,4]triazine 27 is isomeric and isoelectronic with the nucleoside deaminoformycin 1 which is a good inhibitor of adenosine deaminase (ADA) while its 5′-monophosphate 2 is a good inhibitor of adenosine 5′-monophosphate deaminase (AMPDA). The 6-methylsulfanyl derivative 7 of 6 is synthesized by condensation of the monocyclic 1,2,4-triazine 9 with bromo aldehyde 10, which is accompanied by cyclization to give the protected C-nucleoside 21; the 8-methylsulfanyl group of 21 is removed by replacement by hydrazine and oxidation. The 1,2,4-triazine 9 cyclizes similarly with chloroacetaldehyde or its dimethyl acetal to give 6,8-bis(methylsulfanyl)imidazo[2,1-f][1,2,4]triazine 17, which is converted into the parent heterocycle 27 by two routes, and into mono- and di-substituted derivatives (19, 20, 24, 25, 28-30) of the new ring system. Riboside 7 is an inhibitor of mammalian ADA (IC50 40 μM). The Royal Society of Chemistry 1999.

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