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1031809-76-3

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1031809-76-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1031809-76-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,3,1,8,0 and 9 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1031809-76:
(9*1)+(8*0)+(7*3)+(6*1)+(5*8)+(4*0)+(3*9)+(2*7)+(1*6)=123
123 % 10 = 3
So 1031809-76-3 is a valid CAS Registry Number.

1031809-76-3Relevant articles and documents

Design and synthesis of α-carboxy phosphononucleosides

Debarge, Sebastien,Balzarini, Jan,Maguire, Anita R.

, p. 105 - 126 (2011/04/17)

Rhodium catalyzed O-H insertion reactions employing α- diazophosphonate 20 with appropriately protected thymidine, uridine, cytosine, adenosine and guanosine derivatives leads to novel 5′-phosphononucleoside derivatives. Deprotection led to a novel series of phosphono derivatives bearing a carboxylic acid moiety adjacent to the phosphonate group with potential antiviral and/or anticancer activity. The phosphononucleosides bearing an α-carboxylic acid group are envisaged as potential diphosphate mimics. Conversion to mono- and diphosphorylated phosphononucleosides has been effected for evaluation as nucleoside triphosphate mimics. Most of the novel phosphononucleosides proved to be inactive against a variety of DNA and RNA viruses. Only the phosphono AZT derivatives 56-59 showed weak activity against HIV-1 and HIV-2.

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