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100277-55-2

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100277-55-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 100277-55-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,2,7 and 7 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 100277-55:
(8*1)+(7*0)+(6*0)+(5*2)+(4*7)+(3*7)+(2*5)+(1*5)=82
82 % 10 = 2
So 100277-55-2 is a valid CAS Registry Number.

100277-55-2Relevant articles and documents

Synthesis and angiotensin converting enzyme-inhibitory activity of N- [(1S)-1-carboxy-5-(4-piperidyl)pentyl]-L-alanine derivatives

Kori,Itoh,Inada,Katoh,Sumino,Nishikawa,Sugihara

, p. 580 - 585 (2007/10/02)

As part of a search for potent and long-lasting angiotensin converting enzyme (ACE) inhibitors, various types of N-[(1S)-1-carboxy-5-(4- piperidyl)pentyl]-L-alanine derivatives (7a, 8-11) were prepared. The key synthetic intermediate, N-[(1S)-5-(1-benzyloxycarbonyl-4-piperidyl)-1- ethoxycarbonylpentyl]-L-alanine (17a), was synthesized by asymmetric reduction of the α-oxoester (13) with Lactobacillus paracasei subsp. paracasei followed by a substitution reaction with tert-butyl L-alanine (15) and subsequent treatment with hydrogen chloride. Compounds 7a and 8-11 showed potent and long-lasting ACE-inhibitory activity in rats.

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