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149198-97-0

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149198-97-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 149198-97-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,1,9 and 8 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 149198-97:
(8*1)+(7*4)+(6*9)+(5*1)+(4*9)+(3*8)+(2*9)+(1*7)=180
180 % 10 = 0
So 149198-97-0 is a valid CAS Registry Number.

149198-97-0Relevant articles and documents

Pivaloyl-protected glucosyl iodide as a glucosyl donor for the preparation of β-C-glucosides

Triantakonstanti, Virginia V.,Toskas, Alexandros,Iordanidis, Nicolaos S.,Andreou, Thanos,Koftis, Theoharis V.,Gallos, John K.

, (2020)

A method for the selective synthesis of β-C-glucosides using α-D-tetra-O-pivaloylglucosyl iodide as a glucosyl donor is reported. Its diastereoselectivity differs from that of the respective acetyl-protected glucosyl bromide, as it reported in the literature under similar reaction conditions. The concentration of the catalyst, the solvent and the type of additive used are crucial factors that determine the reaction selectivity. This method has been applied in a short synthesis of dapagliflozin. The stability of α-D-tetra-O-pivaloylglucosyl iodide in CDCl3 and THF at reflux was also studied. All side products in the coupling and decomposition reactions were isolated and characterized, and possible pathways for their formation are proposed.

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