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303014-69-9

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303014-69-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 303014-69-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,3,0,1 and 4 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 303014-69:
(8*3)+(7*0)+(6*3)+(5*0)+(4*1)+(3*4)+(2*6)+(1*9)=79
79 % 10 = 9
So 303014-69-9 is a valid CAS Registry Number.

303014-69-9Relevant articles and documents

Synthesis of acyclic nucleoside and nucleotide analogs derived from 6-amino-7H-purin-8(9H)-one

Janeba, Zlatko,Holy, Antonin,Masojidkova, Milena

, p. 1126 - 1144 (2000)

Reaction of 8-bromoadenine derivatives 2 with sodium acetate in acetic acid and cleavage of (S)-7-[(trityloxy)methyl]-7,8-dihydro[1,3]oxazolo[3,2-e]purin-4-amine (12) and diisopropyl (S)-[[(4-amino-8,9-dihydro-7H-[1,3]oxazino[3,2-e]purin-8-yl)oxy]methyl]phosphona te (13a) were used for the synthesis of the corresponding N9-substituted derivatives of 6-amino-7H-purin-8(9H)-one 3a-3c and 7. Alkylation of 6-amino-7H-purin-8(9H)-one (3a) with diverse alkylation agents afforded the title N9-monosubstituted 3b, 3d and 7a and N7,N9-disubstituted acyclic nucleoside and nucleotide analogs 6b, 6d and 8a.

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