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(2S,3R,4R,5S,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-4-hydroxy-3-(2-hydroxy-ethyl)-4-methyl-7-oxo-3-phenylsulfanyl-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

225220-05-3

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225220-05-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 225220-05-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,5,2,2 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 225220-05:
(8*2)+(7*2)+(6*5)+(5*2)+(4*2)+(3*0)+(2*0)+(1*5)=83
83 % 10 = 3
So 225220-05-3 is a valid CAS Registry Number.

225220-05-3Relevant academic research and scientific papers

Total synthesis of tricyclic β-lactams

Hanessian, Stephen,Reddy, Bhaskar

, p. 3427 - 3443 (2007/10/03)

The synthesis of tricyclic carbapenam and penems was achieved by highly stereoselective Lewis acid-catalyzed reactions of 4-substituted 1- trimethylsilyloxyfurans with a 4-acetoxy azetidinone chiron, and further elaboration of the resulting condensation products using intramolecular Michael cyclizations.

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