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73793-15-4

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73793-15-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73793-15-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,7,9 and 3 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 73793-15:
(7*7)+(6*3)+(5*7)+(4*9)+(3*3)+(2*1)+(1*5)=154
154 % 10 = 4
So 73793-15-4 is a valid CAS Registry Number.

73793-15-4Relevant articles and documents

Synthesis of 2',3'-Differentiated Ribonucleosides via Glycosylation. Reactions with 2-O-Me or 2-O-TBDMS Ribofuranose Derivatives. 1. Pyrimidine Series

Chavis, C.,Dumont, F.,Wightman, R. H.,Ziegler, J. C.,Imbach, J. L.

, p. 202 - 206 (2007/10/02)

The synthesis of 2',3' asymmetrically substituted pyrimidine ribonucleosides in 70-95percent yields by using modified Vorbruggen conditions with "nonparticipating" 2-O-CH3 and 2-O-TBDMS ribofuranoses is described.Such compounds are useful synthons for oligoribonucleotide synthesis, including incorporation of "rare" bases.New and practically useful conditions for placement (using 1,2,4-triazole) and removal (KF/crown ether) of the tert-butyldimethylsilyl (TBDMS) protecting group are also reported.

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