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174729-14-7

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174729-14-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 174729-14-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,4,7,2 and 9 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 174729-14:
(8*1)+(7*7)+(6*4)+(5*7)+(4*2)+(3*9)+(2*1)+(1*4)=157
157 % 10 = 7
So 174729-14-7 is a valid CAS Registry Number.

174729-14-7Relevant articles and documents

Regio- and stereoselective methods for the conversion of (2S,3R)-β-phenylglycidic acid esters to taxoids and other enantiopure (2R,3S)-phenylisoserine esters

Afon'Kin,Kostrikin,Shumeiko,Popov,Matveev,Matvienko,Zabudkin

, p. 2149 - 2162 (2013/10/01)

A novel efficient method was proposed for the synthesis of enantiopure precursors of taxane-containing cytostatics, i.e., methyl esters of (2R,3S)- and (2S,3R)-N-benzoylphenylisoserine and similar taxoid esters. The method is based on the regio- and stereoselective hydrobromolysis of the corresponding trans-β-phenyl glycidate enatiomers, consecutive reactions of O-acylcarbamoylation of the obtained 3-bromohydrins, intramolecular cyclization to 4-phenyloxazolidin-2-one-5-carboxylic acid derivatives, and oxazolidinone ring opening.

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