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331766-97-3

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331766-97-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 331766-97-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,7,6 and 6 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 331766-97:
(8*3)+(7*3)+(6*1)+(5*7)+(4*6)+(3*6)+(2*9)+(1*7)=153
153 % 10 = 3
So 331766-97-3 is a valid CAS Registry Number.

331766-97-3Relevant articles and documents

Small hydroxyethylene-based peptidomimetics inhibiting both HIV-1 and C. albicans aspartic proteases

Tossi, Alessandro,Benedetti, Fabio,Norbedo, Stefano,Skrbec, Damiano,Berti, Federico,Romeo, Domenico

, p. 4719 - 4727 (2007/10/03)

We have extended a highly flexible method for rapidly assembling aspartic protease inhibitors to produce symmetric and asymmetric monohydroxyethylene peptidomimetics. This method is based on the prior synthesis of the central non-cleavable peptide-bond is

Epoxyalcohol route to hydroxyethylene dipeptide isosteres: A new synthesis of the diaminoalcohol core of HIV-protease inhibitor ABT-538 (Ritonavir)

Benedetti,Norbedo

, p. 203 - 204 (2007/10/03)

A stereoselective synthesis of the diaminoalcohol core of Ritonavir illustrates a novel approach to hydroxyethylene dipeptide isosteres, based on the regioselective reduction of amino acid-derived epoxyalcohols.

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