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55378-79-5

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55378-79-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55378-79-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,3,7 and 8 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 55378-79:
(7*5)+(6*5)+(5*3)+(4*7)+(3*8)+(2*7)+(1*9)=155
155 % 10 = 5
So 55378-79-5 is a valid CAS Registry Number.

55378-79-5Relevant articles and documents

Complexation of anions including nucleotide anions by open-chain host compounds with amide, urea, and aryl functions

Werner, Frank,Schneider, Hans-Joerg

, p. 465 - 478 (2000)

A systematical evaluation of association constants between halide, phosphate, and carboxylate anions with N-methylformamide (1) and the related bidentate receptors 2-6 (derived from, e.g., phthalic acid or ethylenediamine) in CDCl3 as solvent y

One-pot synthesis of orthogonally protected dipeptide selenazoles employing Nα-amino selenocarboxamides and α-bromomethyl ketones

Madhu, Chilakapati,Panguluri, Nageswara Rao,Narendra,Panduranga,Sureshbabu, Vommina V.

supporting information, p. 6831 - 6835 (2015/01/09)

A simple and efficient protocol for the synthesis of selenazole containing dipeptidomimetics using Nα-amino selenocarboxamides and α-bromomethyl ketones is described. All the compounds made were isolated in good yields and fully characterized.

Serine and threonine β-lactones: A new class of hepatitis A virus 3C cysteine proteinase inhibitors

Lall, Manjinder S.,Ramtohul, Yeeman K.,James, Michael N.G.,Vederas, John C.

, p. 1536 - 1547 (2007/10/03)

Hepatitis A virus (HAV) 3C enzyme is a cysteine proteinase essential for viral replication and infectivity and represents a target for the development of antiviral drugs. A number of serine and threonine β-lactones were synthesized and tested against HAV 3C proteinase. The D-N-Cbz-serine β-lactone 5a displays competitive reversible inhibition with a Ki value of 1.50 × 10-6 M. Its enantiomer, L-N-Cbz-serine β-lactone 5b is an irreversible inactivator with kinact = 0.70 min-1, KI = 1.84 × 10-4 M and kinact/KI = 3800 M-1 min-1. Mass spectrometry and HMQC NMR studies using 13C-labeled 5b show that inactivation of the enzyme occurs by nucleophilic attack of the cysteine thiol (Cys-172) at the β-position of the oxetanone ring. Although the N-Cbz-serine β-lactones 5a and 5b display potent inhibition, other related analogues with an N-Cbz side chain, such as the five-membered ring homoserine γ-lactones 14a and 14b, the four-membered ring β-lactam 33, 2-methylene oxetane 34, cyclobutanone 36, and 3-azetidinone 39, fail to give significant inhibition of HAV 3C proteinase, thus demonstrating the importance of the β-lactone ring for binding.

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