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34097-18-2

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34097-18-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34097-18-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,0,9 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 34097-18:
(7*3)+(6*4)+(5*0)+(4*9)+(3*7)+(2*1)+(1*8)=112
112 % 10 = 2
So 34097-18-2 is a valid CAS Registry Number.

34097-18-2Relevant articles and documents

Fused pyrimidines. 7. Nucleosides of pyrimidopyrimidinediones and pteridinediones as potential chemotherapeutic agents

Nagarajan,Meltsner, Bernard R.,Delia, Thomas J.

, p. 1581 - 1585 (1997)

Several nucleoside derivatives of pyrimido [4,5-d]pyrimidine-2,4(1H,3H)- dione 1 and 2,4(1H,3H)-pteridinedione 2 were prepared. Treating the appropriate silylated nucleobase with 1-O-acetyl-2,3,5-tri-O-benzoyl-β-D- ribofuranose 3 in the presence of trimet

Nucleoside Syntheses, XXII. Nucleoside Synthesis with Trimethylsilyl Triflate and Perchlorate as Catalysts

Vorbrueggen, Helmut,Krolikiewicz, Konrad,Bennua, Baerbel

, p. 1234 - 1255 (2007/10/02)

The novel Lewis acids (CH3)3SiOSO2CF3 (5), (CH3)3SiOSO2C4F9 (6), and (CH3)3SiClO4 (4) are highly selective and efficient Friedel-Crafts catalysts for nucleoside formation from silylated heterocycles and peracylated sugars as well as for rearrangements of persilylated protected nucleosides.With basic silylated heterocycles these new catalysts give much higher yields of the natural N-1-nucleosides than with SnCl4.

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