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183051-91-4

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183051-91-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 183051-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,0,5 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 183051-91:
(8*1)+(7*8)+(6*3)+(5*0)+(4*5)+(3*1)+(2*9)+(1*1)=124
124 % 10 = 4
So 183051-91-4 is a valid CAS Registry Number.

183051-91-4Relevant articles and documents

Stereoselective synthesis of some 3-nitroglucopyranosyladenine analogues via a nitroolefin intermediate as potential therapeutic agents

Tsuboike, Kazunari,Minamoto, Katsumaro,Mizuno, Gen,Yanagihara, Kazufomi

, p. 745 - 758 (2007/10/03)

Three isomers of 9-(4,6-O-benzylidene-3-deoxy-[β-D-hexopyranosyl) adenines (2-4) were isolated. The manno isomer 2 could be isomerized to the gluco isomer 3. The manno (2) and galacto isomer (4) were deprotected to 5 and 7, respectively. Michael addition of some organic amines and thiolates to the nitroolefin intermediate (8) gave the corresponding 2-(substituted)-3- nitro-glucopyranosides (9a-h). Compounds 9a,c,h were deprotected to 10a,c,h. Sodium azide with 8 gave the triazolo nucleoside 11, which was deprotected to 12.2-Deoxy-3-nitro analogue 14 was also obtained.

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