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41341-34-8

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41341-34-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 41341-34-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,1,3,4 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 41341-34:
(7*4)+(6*1)+(5*3)+(4*4)+(3*1)+(2*3)+(1*4)=78
78 % 10 = 8
So 41341-34-8 is a valid CAS Registry Number.

41341-34-8Downstream Products

41341-34-8Relevant articles and documents

A Regiocontrolled Synthesis of N7- and N9-Guanine Nucleosides

Garner, Philip,Ramakanth, Sarabu

, p. 1294 - 1298 (1988)

The reaction of 2-O-acetylated and 2-O-benzoylated glycosides 3a,b/4a,b with silylated N2-acetylguanine 7 selectively gave N7-guanine nucleosides 8a,b/9a,b under kinetically controlled conditions (SnCl4/CH3CN, room temperature), whereas 2-O-benzoylated glycosides 3b/4b selectively gave isomeric N9-guanine nucleosides 10b/11b under termodynamically controlled conditions (TMSOTf/(CH2Cl)2, reflux).Unambiguous assignment of nucleoside structure was accomplished after hydrolysis (NH3/MeOH) of the initial products to the known nucleosides 8c, 9c, 10c, and 11c followed by 1H NMR and 13C NMR spectral analysis.The described procedures provide the best method to date for the selective synthesis of either N7- or N9-guanine nucleosides from a common substrate.

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