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136658-80-5

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136658-80-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136658-80-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,6,5 and 8 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 136658-80:
(8*1)+(7*3)+(6*6)+(5*6)+(4*5)+(3*8)+(2*8)+(1*0)=155
155 % 10 = 5
So 136658-80-5 is a valid CAS Registry Number.

136658-80-5Relevant articles and documents

Substrate Analogue Renin Inhibitors Containing Replacements of Histidine in P2 or Isosteres of the Amide Bond between P3 and P2 Sites

Raddatz, Peter,Jonczyk, Alfred,Minck, Klaus-Otto,Schmitges, Claus Jochen,Sombroek, Jan

, p. 3267 - 3280 (2007/10/02)

Incorporation of β-alanine or γ-aminobutyric acid in position P2 of ACHPA or LeuΨVal-based tetrapeptides gave highly active renin inhibitors (compounds V,VI, and XVII) with high specificity for renin and a remarkable stability against chymotrypsin.Replacement of the amide bond between P2 and P3 by isosteres (ketomethylenes, hydroxyethylenes, and the corresponding thio-insertion analogues) led to compounds (VIII-XIII, XVIII, and XIX) with renin inhibitory activity in the nanomolar range.Oral activity was achieved by incorporation of polar functionalities at the N-terminus of β-alanine-containing tetrapeptides.One of these compounds (XXVIII) was chosen for further studies.This inhibitor demonstrated excellent efficacy and a long duration of action after intravenous and oral administration to cynomolgus monkeys.

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