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1227366-28-0

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1227366-28-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1227366-28-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,7,3,6 and 6 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1227366-28:
(9*1)+(8*2)+(7*2)+(6*7)+(5*3)+(4*6)+(3*6)+(2*2)+(1*8)=150
150 % 10 = 0
So 1227366-28-0 is a valid CAS Registry Number.

1227366-28-0Relevant articles and documents

First asymmetric synthesis of boehmeriasin A

Dumoulin, David,Lebrun, Stephane,Couture, Axel,Deniau, Eric,Grandclaudon, Pierre

, p. 1943 - 1950 (2010)

The first asymmetric synthesis of phenanthroquinolizidine alkaloid (R)-boehmeriasin A is described. Two alternative synthetic pathways to the key intermediate (RS,R)-4 were achieved through a combination of highly diastereoselective 1,2-nucleophilic addition on (-)-(S)-l-amino-2-(methoxy methyl)pyrrolidine hydrazones with a ring-closing metathesis to ensure the construction of the piperidine template. A subsequent acylation/oxidation/aldol condensation/radical cyclization sequence completed the assembly of the title (R)configured natural product.

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