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177949-07-4

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177949-07-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 177949-07-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,9,4 and 9 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 177949-07:
(8*1)+(7*7)+(6*7)+(5*9)+(4*4)+(3*9)+(2*0)+(1*7)=194
194 % 10 = 4
So 177949-07-4 is a valid CAS Registry Number.

177949-07-4Relevant articles and documents

Synthesis and comparative evaluation of two antiviral agents: β-L- Fd4C and β-D-Fd4C

Chen, Shu-Hui,Lin, Stanley,King, Ivan,Spinka, Tracy,Dutschman, Ginger E.,Gullen, Elizabeth A.,Cheng, Yung-Chi,Doyle, Terrence W.

, p. 3245 - 3250 (2007/10/03)

The synthesis of β-D-Fd4C was achieved in a stereoselective fashion from D-xylose. The antiviral activity and cytotoxicity of β-D-Fd4C was compared with that of β-L-Fd4C and 3TC (Lamivudine). Of the three agents compared, β-L-Fd4C was found to be the most potent antiviral agent.

Chemical Synthesis of 13C-labelled Monomers for the Solid-Phase and Template Controlled Enzymatic Synthesis of DNA and RNA Oligomers

Quant, S.,Wechselberger, R. W.,Wolter, M. A.,Woerner, K.-H.,Schell, P.,et al.

, p. 6649 - 6652 (2007/10/02)

The preparation of 13C-labelled ribonucleosides starting from -glucose 1 and the corresponding nucleobases 5a-e or 6a-e (N6-benzoyl-adenine, N2-acetyl-guanine, N4-benzoyl-cytosine, uracil and thymine) in 47-66percent overall yield is described.Their subsequent transformation into 5'-O-dimethoxytrityl protected DNA-phosphoramidites and 5'-O-dimethoxytrityl-2'-O-trialkylsilyl protected RNA-phosphor-amidites for the solid phase synthesis of DNA- and RNA-oligomers and to 5'-O-ribo- and deoxyribo-nucleosidetriphosphates for template controlled enzymatic synthesis (polymerase- or reverse transcriptase reaction) has been carried out.

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