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508193-99-5

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508193-99-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 508193-99-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,8,1,9 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 508193-99:
(8*5)+(7*0)+(6*8)+(5*1)+(4*9)+(3*3)+(2*9)+(1*9)=165
165 % 10 = 5
So 508193-99-5 is a valid CAS Registry Number.

508193-99-5Downstream Products

508193-99-5Relevant articles and documents

A highly efficient, asymmetric synthesis of benzothiadiazine-substituted tetramic acids: Potent inhibitors of hepatitis C virus RNA-dependent RNA polymerase

Fitch, Duke M.,Evans, Karen A.,Chai, Deping,Duffy, Kevin J.

, p. 5521 - 5524 (2007/10/03)

(Chemical Equation Presented) An efficient two-pot, asymmetric synthesis of benzothiadiazine-substituted tetramic acids is reported. Starting from commercially available α-amino acids or esters, reductive amination followed by a novel one-pot amide bond formation/Dieckmann cyclization provided the desired products in high yield and optical purity. An analogous solid-phase approach to the same targets is also presented. These compounds were found to be potent inhibitors of hepatitis C virus RNA-dependent RNA polymerase.

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