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648414-58-8

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648414-58-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 648414-58-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,8,4,1 and 4 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 648414-58:
(8*6)+(7*4)+(6*8)+(5*4)+(4*1)+(3*4)+(2*5)+(1*8)=178
178 % 10 = 8
So 648414-58-8 is a valid CAS Registry Number.

648414-58-8Relevant articles and documents

Synthesis of carbocyclic analogues of thymidine

Ludek,Meier

, p. 683 - 685 (2003)

A new route towards an enantiomerically pure carbocyclic 2′-deoxyribonucleoside precursor was developed. After coupling with a nucleobase the product is easily accessible for further modifications at the 3′-hydroxy group.

New convergent synthesis of carbocyclic nucleoside analogues

Ludek, Olaf R.,Meier, Chris

, p. 2101 - 2109 (2007/10/03)

Two convergent approaches towards the synthesis of carbocyclic nucleoside analogs will be described. Both approaches start from the stereochemically pure cyclopentenol 8 that has been prepared enantioselectively from an alkylated cyclopentadiene. Using these approaches, carbocyclic analogues of dT, FdU and BVdU have been prepared. Moreover, the conversion into the cycloSalpronucleotide and the corresponding nucleotide will be presented for one example.

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