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147269-03-2

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147269-03-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 147269-03-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,7,2,6 and 9 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 147269-03:
(8*1)+(7*4)+(6*7)+(5*2)+(4*6)+(3*9)+(2*0)+(1*3)=142
142 % 10 = 2
So 147269-03-2 is a valid CAS Registry Number.

147269-03-2Relevant articles and documents

Base-catalysed 18F-labelling of trifluoromethyl ketones. Application to the synthesis of 18F-labelled neutrophil elastase inhibitors

Meyer, Denise N.,Cortés González, Miguel A.,Jiang, Xingguo,Johansson-Holm, Linus,Pourghasemi Lati, Monireh,Elgland, Mathias,Nordeman, Patrik,Antoni, Gunnar,Szabó, Kálmán J.

, p. 8476 - 8479 (2021/09/02)

A new method for the fluorine-18 labelling of trifluoromethyl ketones has been developed. This method is based on the conversion of a-COCF3 functional group to a difluoro enol silyl ether followed by halogenation and fluorine-18 labelling. The utility of this new method was demonstrated by the synthesis of fluorine-18 labelled neutrophil elastase inhibitors, which are potentially useful for detection of inflammatory disorders.

Nonpeptidic inhibitors of human leukocyte elastase. 2. Design, synthesis, and in vitro activity of a series of 3-amino-6-arylopyridin-2-one trifluoromethyl ketones

Damewood Jr.,Edwards,Feeney,Gomes,Steelman,Tuthill,Williams,Warner,Woolson,Wolanin,Veale

, p. 3303 - 3312 (2007/10/02)

A series of potent nonpeptidic inhibitors of the enzyme human leukocyte elastase (HLE) is reported. These inhibitors contain a 3-amino-2-pyridone ring as a central template in which the pyridone carbonyl and 3-position NH group are thought to form important hydrogen bonding interactions with the Val-216 residue of HLE. Substitution of the 6-position of the pyridone ring by various alkyl and aryl groups was found to afford increases in the in vitro potency of these inhibitors. A 6-position phenyl group, compound 10f, was found to result in a large increase in binding affinity, which was not obtained when the phenyl group was placed in either the 4- or 5-position of the molecule. Compound 10f was found to have good selectivity for HLE over other proteolytic enzymes, with the exception of bovine pancreatic chymotrypsin (BPC). Substitution of the 6-phenyl group in these molecules was found to decrease binding affinity for BPC without adversely affecting affinity for HLE.

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