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125867-27-8

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125867-27-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 125867-27-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,8,6 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 125867-27:
(8*1)+(7*2)+(6*5)+(5*8)+(4*6)+(3*7)+(2*2)+(1*7)=148
148 % 10 = 8
So 125867-27-8 is a valid CAS Registry Number.

125867-27-8Relevant articles and documents

Synthesis of ortho-substituted aminopyridines. Metalation of pivaloylamino derivatives

Estel,Linard,Marsais,Godard,Queguiner

, p. 105 - 112 (2007/10/02)

The three isomeric pivaloylaminopyridines were lithiated in more than 80% yields. Aminopyridine derivatives were treated by 2.5-3 equivalents of the complex BuLi-TMEDA at -10° in diethyl ether. Reaction of the lithiated species with various electrophiles afforded a number of ortho-substituted pivaloylaminopyridines in good yields. Secondary pyridine alcohols were oxidized to the corresponding aminopyridyl ketones. Pyridopyrimidines, benzonaphthyridines as well as an analogue of the natural antitumor alkaloid ellipticine has been synthesized showing the versatility of the method.

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