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1448021-11-1

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1448021-11-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1448021-11-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,8,0,2 and 1 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1448021-11:
(9*1)+(8*4)+(7*4)+(6*8)+(5*0)+(4*2)+(3*1)+(2*1)+(1*1)=131
131 % 10 = 1
So 1448021-11-1 is a valid CAS Registry Number.

1448021-11-1Downstream Products

1448021-11-1Relevant articles and documents

Construction of functionalized tricyclic dihydropyrazino-quinazolinedione chemotypes via an Ugi/N-acyliminium ion cyclization cascade

Gunawan, Steven,Hulme, Christopher

, p. 4467 - 4470 (2013/07/26)

Dihydropyrazino-quinazolinedione chemotypes are complex and structurally challenging structures of biological interest, being found in the marine alkaloids such as brevianamide M-N and fumiquinazolines A-C. Herein we report the synthesis of this tricyclic system in three synthetic operations by means of an Ugi multi-component reaction (MCR) followed by a tandem N-acyliminium ion cyclization-intramolecular nucleophilic addition reaction sequence. Additional structural diversification for further library enrichment was also accomplished via sequential N-alkylation and N-acylation/sulfonation.

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