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423747-61-9

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423747-61-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 423747-61-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,3,7,4 and 7 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 423747-61:
(8*4)+(7*2)+(6*3)+(5*7)+(4*4)+(3*7)+(2*6)+(1*1)=149
149 % 10 = 9
So 423747-61-9 is a valid CAS Registry Number.

423747-61-9Relevant articles and documents

Synthesis of an indole containing KDR kinase inhibitor by tandem Sonogashira coupling-5-endo-dig-cyclization as a key step

Palimkar, Sanjay S.,More, Vijaykumar S.,Kumar, P. Harish,Srinivasan, Kumar V.

, p. 12786 - 12790 (2008/03/13)

An efficient synthesis of the potent KDR kinase inhibitor 3-[5-[[4-(methylsulfonyl)-1-piperazinyl]methyl]-1H-indol-2-yl]quinoline-2-(1H)-one using a Sonogashira coupling-5-endo-dig-cyclization strategy is described.

Synthesis of disubstituted imidazo[4,5-b]pyridin-2-ones

Kuethe, Jeffrey T.,Wong, Audrey,Davies, Ian W.

, p. 7752 - 7754 (2007/10/03)

Regioselective palladium-catalyzed amination of 2-chloro-3-iodopyridine followed by a subsequent palladium-catalyzed amination leads to 2,3-diaminopyridines. Treatment with triphosgene affords highly functionalized unsymmetrical imidazo [4,5-b] pyridin-2-

Effective strategy for the preparation of indolocarbazole aglycons and glycosides: Total synthesis of tjipanazoles B, D, E, and I

Kuethe, Jeffrey T.,Wong, Audrey,Davies, Ian W.

, p. 3721 - 3723 (2007/10/03)

(Matrix presented) An effective strategy has been developed for the rapid and efficient preparation of ortho-nitrostyrenes, which can be converted to unsymmetrical 2,2′-biindoles. A unique condensation of these 2,2′-biindoles with (dimethylamino)-acetalde

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