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222420-33-9

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222420-33-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 222420-33-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,2,4,2 and 0 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 222420-33:
(8*2)+(7*2)+(6*2)+(5*4)+(4*2)+(3*0)+(2*3)+(1*3)=79
79 % 10 = 9
So 222420-33-9 is a valid CAS Registry Number.

222420-33-9Relevant articles and documents

Recyclization of 2-imino-2H-1-benzopyrans under the influence of nucleophilic reagents. 2. Reaction of 2-iminocoumarin-3-carboxamides with o-aminobenzenesulfonamide

Kovalenko,Chernykh,Shkarlat,Ukrainets,Gridasov,Rudnev

, p. 791 - 795 (1998)

2-Iminocoumarin-3-carboxamides recyclized into 3-(1,1-dioxo-2H-benzo-1,2,4-thiadiazinyl-3)coumarins under the influence of o-aminobenzenesulfonamide. An alternative method of synthesis is discussed. Proposed mechanisms for the recyclization are discussed.

5,6-DIHYDRO-1H-PYRIDIN-2-ONE COMPOUNDS

-

Page/Page column 147-148, (2008/12/04)

The invention is directed to 5,6-dihydro-lH-pyridin-2-one compounds and pharmaceutical compositions containing such compounds that are useful in treating infections by hepatitis C virus.

Inhibitors of HCV NS5B polymerase: Synthesis and structure-activity relationships of N-1-benzyl and N-1-[3-methylbutyl]-4-hydroxy-1,8-naphthyridon-3-yl benzothiadiazine analogs containing substituents on the aromatic ring

Rockway, Todd W.,Zhang, Rong,Liu, Dachun,Betebenner, David A.,McDaniel, Keith F.,Pratt, John K.,Beno, David,Montgomery, Debra,Jiang, Wen W.,Masse, Sherie,Kati, Warren M.,Middleton, Tim,Molla, Akhteruzzaman,Maring, Clarence J.,Kempf, Dale J.

, p. 3833 - 3838 (2007/10/03)

A series of non-nucleoside HCV NS5B polymerase inhibitors based on the N-1-benzyl or N-1-[3-methylbutyl]-4-hydroxy-1,8-naphthyridon-3-yl benzothiadiazine core substituted in the D-ring aromatic moiety have been prepared and evaluated. Aromatic substituents extending from position 7 of the D-ring exhibited excellent potency against both genotypes 1a and 1b.

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