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142564-53-2

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142564-53-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142564-53-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,5,6 and 4 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 142564-53:
(8*1)+(7*4)+(6*2)+(5*5)+(4*6)+(3*4)+(2*5)+(1*3)=122
122 % 10 = 2
So 142564-53-2 is a valid CAS Registry Number.

142564-53-2Relevant articles and documents

HIV protease inhibitors

-

, (2008/06/13)

The present invention relates to novel dihydropyrones with tethered heterocycles having improved pharmacologic properties which potently inhibit the HIV aspartyl protease blocking HIV infectivity. The dihydropyrones are useful in the development of therapies for the treatment of viral infections and diseases, including AIDS. The present invention is also directed to methods of synthesis of the dihydropyrones and intermediates useful in the preparation of the final compounds.

A convenient copper-catalyzed direct animation of nitroarenes with 9-alkylhydroxylamines

Seko, Shinzo,Miyake, Kunihito,Kavvamura, Norio

, p. 1437 - 1444 (2007/10/03)

O-Alkylhydroxylamines, particularly O-methylhydroxylamine, aminate nitroarenes in the presence of a strong base and a copper catalyst to give aminonitroarenes in good yields, ortho- or para-Animation with respect to the nitro group takes place, and in some cases the ortho-aminated product is preferentially obtained. With 3-substituted nitrobenzenes where the substituent has a lone pair of electrons, preferential amination occurs at the 2-position to give the sterically most congested 3c-f, 14 and 22g.

Copper-catalyzed direct amination of nitrobenzenes with O-alkylhydroxylamines

Seko, Shinzo,Kawamura, Norio

, p. 442 - 443 (2007/10/02)

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