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287117-72-0

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287117-72-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 287117-72-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,7,1,1 and 7 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 287117-72:
(8*2)+(7*8)+(6*7)+(5*1)+(4*1)+(3*7)+(2*7)+(1*2)=160
160 % 10 = 0
So 287117-72-0 is a valid CAS Registry Number.

287117-72-0Relevant articles and documents

A formal asymmetric synthesis of (-)-epibatidine using a highly diastereoselective hetero Diels-Alder reaction

Cabanal-Duvillard, Isabelle,Berrien, Jean-Fran?ois,Ghosez, Léon,Husson, Henri-Philippe,Royer, Jacques

, p. 3763 - 3769 (2007/10/03)

A formal asymmetric synthesis of (-)-epibatidine is reported. The key step of the synthesis is a regio- and diastereoselective cycloaddition of silyloxycyclohexadiene with the acylnitroso dienophite derived from (+)- camphorsultam. The resulting cycloadduct was readily transformed into the N- protected-7-azabicycto[2.2.1]heptan-2-one derivative which has previously been transformed into(-)-epibatidine. (C) 2000 Elsevier Science.

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