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177770-51-3

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177770-51-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 177770-51-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,7,7 and 0 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 177770-51:
(8*1)+(7*7)+(6*7)+(5*7)+(4*7)+(3*0)+(2*5)+(1*1)=173
173 % 10 = 3
So 177770-51-3 is a valid CAS Registry Number.

177770-51-3Relevant articles and documents

Enantioselective total synthesis of Irniine and Bgugaine, bioactive 2-alkylpyrrolidine alkaloids

Jossang, Akino,Melhaoui, Ahmed,Bodo, Bernard

, p. 755 - 766 (2007/10/03)

An asymmetric total synthesis of the 2-(R)-alkylpyrrolidines, (-)-irniine (1a) and (-)-bgugaine (1b), toxic and antibiotic components of the tubers of Arisarum vulgare, and (+)-(S)-irniine (1c), was carried out by condensation of the corresponding 4-oxoalkanoic acid (9) with chiral phenylglycinol. Acids (9) were prepared from a hetero-organocuprate (I) complex, generated by reaction of methylcopper (I) with alkylmagnesium bromides and methyl chlorocarbonylpropionate. Alkaloids (1a, 1b and 1c) displayed anti Gram(+) bacterial (MIC 12.5 - 50 μg/ml) and antifungal (MIC 6.25 - 50 μg/ml) activities.

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