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109276-71-3

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109276-71-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109276-71-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,2,7 and 6 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 109276-71:
(8*1)+(7*0)+(6*9)+(5*2)+(4*7)+(3*6)+(2*7)+(1*1)=133
133 % 10 = 3
So 109276-71-3 is a valid CAS Registry Number.

109276-71-3Relevant articles and documents

Synthesis of N-Boc-α-Amino Acids with Nucleobase Residues as Building Blocks for the Preparation of Chiral PNA (Peptidic Nucleic Acids).

Lenzi, Alessandro,Reginato, Gianna,Taddei, Maurizio

, p. 1713 - 1716 (1995)

N-Boc-Glutamic acid α-benzyl ester was transformed into 4-bromo-2-(tert-butoxycarbonylamino)-butyric acid benzyl ester using the Barton-Crich protocol.This bromo derivative undergoes nucleophilic substitution with nucleobases to give optically active N-Bo

Side chain homologation of alanyl peptide nucleic acids: Pairing selectivity and stacking

Diederichsen, Ulf,Weicherding, Daniel,Diezemann, Nicola

, p. 1058 - 1066 (2007/10/03)

Alanyl peptide nucleic acids (alanyl-PNAs) are oligomers based on a regular peptide backbone with alternating configuration of the amino acids. All side chains are modified by covalently linked nucleobases. Alanyl-PNAs form very rigid, well defined, and l

MANIPULATION OF THE CARBOXYL GROUPS OF α-AMINO-ACIDS AND PEPTIDES USING RADICAL CHEMISTRY BASED ON ESTERS OF N-HYDROXY-2-THIOPYRIDONE

Barton, Derek H. R.,Herve, Yolande,Potier, Pierre,Thierry, Josiane

, p. 5479 - 5486 (2007/10/02)

Photolysis of α-amino-acid or peptide esters derived from N-hydroxy-2-thiopyridone in the presence of t-butylthiol affords the expected decarboxylation products in good yield.The reaction can be applied to the α-carboxyl or to the side chain carboxyl of g

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