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188183-27-9

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188183-27-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188183-27-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,1,8 and 3 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 188183-27:
(8*1)+(7*8)+(6*8)+(5*1)+(4*8)+(3*3)+(2*2)+(1*7)=169
169 % 10 = 9
So 188183-27-9 is a valid CAS Registry Number.

188183-27-9Relevant articles and documents

Stereoselective Amination of Chiral Enolates: Synthesis of enantiomerically pure α,β-Diamino Acids, Chiral Key Compounds in the Synthesis of Conformationally Constrained Peptido- and Non-peptidomimetics

Badorrey, Ramon,Cativiela, Carlos,Diaz-de-Villegas, Maria D.,Galvez, Jose A.

, p. 2787 - 2796 (2007/10/03)

This work describes an efficient synthesis of enantiomerically pure (R)-2-aminomethylalanine, (R)-2-aminomethylnorvaline, (R)-2-aminomethylvaline, (R)-2-aminomethylleucine and (R)-2-aminomethylphenylalanine by electrophilic amination of chiral 2-cyanoeste

Asymmetric Synthesis of β-Lactams. Highly Diastereoselective Alkylation of Chiral 2-Cyano Esters

Cativiela, Carlos,Diaz-de-Villegas, Maria D.,Galvez, Jose A.

, p. 2497 - 2505 (2007/10/02)

Enolates derived from 10-(dicyclohexylsulfamoyl)isobornyl 2-substituted-2-cyanoacetates were alkylated with very good yield and high diastereoselectivity.The reduction of the resulting reaction products and subsequent cyclization of the β-amino acids led

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