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389090-45-3

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389090-45-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 389090-45-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,8,9,0,9 and 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 389090-45:
(8*3)+(7*8)+(6*9)+(5*0)+(4*9)+(3*0)+(2*4)+(1*5)=183
183 % 10 = 3
So 389090-45-3 is a valid CAS Registry Number.

389090-45-3Relevant articles and documents

HETEROARYL COMPOUNDS, COMPOSITIONS THEREOF, AND USE THEREOF AS PROTEIN KINASE INHIBITORS

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Page/Page column 65; 66, (2008/12/05)

Provided herein are Heteroaryl Compounds having the following structure: (I) wherein R1, R2, L, X, Y, Z, Q, A and B are as defined herein, compositions comprising an effective amount of a Heteroaryl Compound and methods for treating or preventing cancer, inflammatory conditions, immunological conditions, metabolic conditions and conditions treatable or preventable by inhibition of a kinase pathway comprising administering an effective amount of a Heteroaryl Compound to a patient in need thereof.

The reactions of diaminomaleonitrile with isocyanates and either aldehydes or ketones revisited

Booth,Dias,Proenca,Zaki

, p. 8436 - 8441 (2007/10/03)

A reinvestigation of the reactions of urea derivatives of diaminomaleonitrile 2 with aldehydes or ketones in the presence of triethylamine has established that the products of these reactions are not pyrimidino[5,4-d]pyrimidines 9 as previously reported, but 8-oxo-6-carboxamido-1,2-dihydropurines 12, which are oxidized rapidly in air to the corresponding 6-carboxamidopurines 13. Similarly, the reaction of Schiff base derivatives of DAMN 5 with isocyanates in the presence of triethylamine gives the substituted 2-oxoimidazoles 20 and not the pyrimidine derivatives 8 as previously claimed. The compounds 20 cyclize in solution and are easily oxidized to 8-oxopurine-6-carbonitriles 22, which give the same 8-oxopurine-6-carboxamides 13 upon further hydrolysis.

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