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129440-28-4

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129440-28-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129440-28-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,4,4 and 0 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 129440-28:
(8*1)+(7*2)+(6*9)+(5*4)+(4*4)+(3*0)+(2*2)+(1*8)=124
124 % 10 = 4
So 129440-28-4 is a valid CAS Registry Number.

129440-28-4Downstream Products

129440-28-4Relevant articles and documents

Synthesis of Uridine and 2'-Deoxyuridine Mono- and Tri-phosphates Alkylated in Position 5 by Glycosides of α-D-Mannose and N-Acetyl-β-D-glucosamine: DNA and RNA Monomers with Tethered Lectin Targets

Sarfati, S. Robert,Pochet, Sylvie,Neumann, Jean-Michel,Igolen, Jean

, p. 1065 - 1070 (2007/10/02)

A simple synthesis of deoxyuridine and uridine 5'-mono- and 5'-tri-phosphates, C-5 alkylated by glycosides of 2-acetamido-2-deoxy-β-D-glucopyranose and α-D-mannopyranose, is reported.The glycosides (5) and (7) have been obtained respectively, by condensation of 3,4,6-tri-O-acetyl-1,2-dideoxy-1,2-dihydro-2'-methyl-α-D-glucopyranosooxazole (2), and tetra-O-benzoyl-α-D-mannopyranosyl bromide (3) with 6-(N-acryloylamino)hexan-1-ol (1) as aglycone.These two glycosides were then coupled to the C-5 position of dUMP and UMP in the presence of Li2PdCl4 to give compounds (15)-(18) in 30-45percent yield.Their structure and those of the by-products (13), (14), (22), and (23) were determined by mass and NMR spectroscopies.The same reaction was successfully applied to the synthesis of triphosphate analogues (19)-(21) in 14-19percent yield.

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