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171016-45-8

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171016-45-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 171016-45-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,0,1 and 6 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 171016-45:
(8*1)+(7*7)+(6*1)+(5*0)+(4*1)+(3*6)+(2*4)+(1*5)=98
98 % 10 = 8
So 171016-45-8 is a valid CAS Registry Number.

171016-45-8Relevant articles and documents

Application of radical cyclisation/iodine atom transfer to the chiral synthesis of (-)-methylenolactocin

Mawson, Simon D.,Weavers, Rex T.

, p. 11257 - 11270 (2007/10/02)

Methylenolactocin, an antitumour antibiotic, has been synthesized through an efficient radical cyclisation process on a chiral iodo acetylene ester. Chiral iodohydrins may be formed by regioselective opening of a chiral epoxy ester, prepared by Sharpless epoxidation. C-2 opening is achieved with TMSCl/NaI and C-3 attack with MgI2. Subsequent esterification of the 2-iodo compound by reaction with substituted propynoyl triflates gives the key iodo acetylenic esters. This route is highly adaptable to the synthesis of analogues.

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