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1391833-12-7

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1391833-12-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1391833-12-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,9,1,8,3 and 3 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1391833-12:
(9*1)+(8*3)+(7*9)+(6*1)+(5*8)+(4*3)+(3*3)+(2*1)+(1*2)=167
167 % 10 = 7
So 1391833-12-7 is a valid CAS Registry Number.

1391833-12-7Relevant articles and documents

Highly stereoselective formal synthesis of rosuvastatin and pitavastatin through Julia-Kocienski olefination using the lactonized statin side-chain precursor

Fabris, Jan,?asar, Zdenko,Smilovi?, Ivana Gazi?,?rnugelj, Martin

supporting information, p. 2333 - 2346 (2014/12/09)

An expedient and simple synthetic approach to pitava statin and rosuvastatin final intermediates is described. The presented approach consists of completely stereoselective Julia-Kocienski olefination step (E/Z up to 300:1) between lactonized statin side-chain precursor and sulfone derivative of the corresponding pyrimidine and quinoline heterocyclic cores. The desired O-TBS protected statin lactones were isolated in 66-71% yield and high >97% purity (HPLC). Georg Thieme Verlag Stuttgart. New York.

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