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189459-10-7

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189459-10-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 189459-10-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,4,5 and 9 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 189459-10:
(8*1)+(7*8)+(6*9)+(5*4)+(4*5)+(3*9)+(2*1)+(1*0)=187
187 % 10 = 7
So 189459-10-7 is a valid CAS Registry Number.

189459-10-7Downstream Products

189459-10-7Relevant articles and documents

Synthesis of highly substituted imidazolidine-2,4-dione (Hydantoin) through Tf2O-mediated dual activation of Boc-protected dipeptidyl compounds

Liu, Hui,Yang, Zhimin,Pan, Zhengying

supporting information, p. 5902 - 5905 (2015/01/08)

Highly substituted chiral hydantoins were readily synthesized from simple dipeptides in a single step under mild conditions. This reaction proceeded through the dual activation of an amide and a tert-butyloxycarbonyl (Boc) protecting group by Tf2O-pyridine. This method was successfully applied in the preparation of a variety of biologically active compounds, including drug analogs and natural products.

Allyltrichlorostannane additions to chiral dipeptide aldehydes

Dias, Luiz C.,Ferreira, Edílson

, p. 7159 - 7162 (2007/10/03)

The first examples of successful allylsilane additions to chiral dipeptide aldehydes are described. Treatment of allylsilanes with tin tetrachloride at room temperature affords allyltrichlorostannane intermediates that reacts with dipeptide aldehydes to give 1,2-syn-homoallylic alcohols, potential intermediates for the synthesis of hydroxyethylene dipeptide isosteres.

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