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{(S)-1-[((1S,2S)-2-Hydroxy-1-methyl-2-phenyl-ethyl)-methyl-carbamoyl]-2-methyl-propyl}-carbamic acid tert-butyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

189823-46-9

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189823-46-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 189823-46-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,8,2 and 3 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 189823-46:
(8*1)+(7*8)+(6*9)+(5*8)+(4*2)+(3*3)+(2*4)+(1*6)=189
189 % 10 = 9
So 189823-46-9 is a valid CAS Registry Number.

189823-46-9Relevant academic research and scientific papers

The use of phosphinamide N-protecting groups in the diastereoselective reduction of ketones

Palmer, Matthew J.,Studley, John R.,Walsgrove, Tim C.,Wills, Martin

, p. 8827 - 8840 (1998)

The phosphinamide N-protecting group is demonstrated to be an effective directing group for diastereoselective reductions of proximal ketones. A range of methods for the preparation of the requisite α-amino ketones substrates are described.

The use of phosphinamide N-protecting groups in the diastereoselective reduction of ketones

Palmer, Matthew J.,Studley, John R.,Walsgrove, Tim C.,Wills, Martin

, p. 2315 - 2316 (2007/10/03)

The phosphinamide N-protecting group is demonstrated to be an effective directing group for the diastereoselective reductions of proximal ketones.

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