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167629-48-3

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167629-48-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 167629-48-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,7,6,2 and 9 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 167629-48:
(8*1)+(7*6)+(6*7)+(5*6)+(4*2)+(3*9)+(2*4)+(1*8)=173
173 % 10 = 3
So 167629-48-3 is a valid CAS Registry Number.

167629-48-3Relevant articles and documents

Towards the synthesis of the 4,19-diol derivative of (-)-mycothiazole: Synthesis of a potential key intermediate

Batt, Frederic,Fache, Fabienne

, p. 6039 - 6055 (2011)

The synthesis of a potential key intermediate for the synthesis of the 4,19-diol derivative of (-)-mycothiazole using convergent strategies is described in this paper. Several approaches have been tested, including cross metathesis and a Julia-Kocienski olefination. Finally, the formation of the 1,1-dialkyl-1,2-ethanediol motif through C4-C5 bond construction was realized by nucleophilic addition of a vinyl iodide derivative to a keto ester after halogen/lithium exchange followed by reduction of the resulting hydroxy ester. The synthesis of the allylic 1,1-dialkyl-1,2-ethanediol group, achieved by halogen/metal exchange followed by addition to aα-keto ester, is the key step of this convergent strategy towards a potential intermediate of mycothiazole-4,19-diol.

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