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methyl N-benzenesulfonyl-N,O-isopropylidene-D-allothreoninate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

157801-19-9

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157801-19-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157801-19-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,8,0 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 157801-19:
(8*1)+(7*5)+(6*7)+(5*8)+(4*0)+(3*1)+(2*1)+(1*9)=139
139 % 10 = 9
So 157801-19-9 is a valid CAS Registry Number.

157801-19-9Relevant academic research and scientific papers

Synthesis and Absolute Configuration of Four Diastereomeric 1-(2-Furyl)-2-aminobutane-1,3-diols

Szechner, Barbara,Achmatowicz, Osman,Galdecki, Zdzislaw,Fruzinski, Andrzej

, p. 7611 - 7624 (2007/10/02)

The synthesis of N-benzenesulfonyl-N,O-isopropylidene derivatives of (1R,2R,3S)-, (1S,2R,3S)-, (1R,2R,3R)- and (1S,2R,3R)-1-(2-furyl)-2-aminobutane-1,2-diols was accomplished by the addition of furyllithium to the similarly protected D-threoninal and D-allothreoninal, prepared in four steps from D-threonine and D-allothreonine, respectively.The configuration integrity of β-hydroxy-α-amino aldehydes as well as the structure and the stereochemistry of resultant aminodiols derivatives was established by 1H NMR spectroscopy and single-crystal X-ray analysis.

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