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17559-40-9

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17559-40-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17559-40-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,5,5 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 17559-40:
(7*1)+(6*7)+(5*5)+(4*5)+(3*9)+(2*4)+(1*0)=129
129 % 10 = 9
So 17559-40-9 is a valid CAS Registry Number.

17559-40-9Relevant articles and documents

1-Aryl-3-azabicyclohexanes, a New Series of Nonnarcotic Analgesic Agents

Epstein, Joseph W.,Brabander, Herbert J.,Fanshawe, William J.,Hofmann, Corris M.,McKenzie, Thomas C.,et al.

, p. 481 - 490 (2007/10/02)

A series of 1-aryl-3-azabicyclohexanes was synthesized by hydride reduction of 1-arylcyclopropanedicarboximides.Hydroxyphenyl analogues 20, 22, and 24 were prepared by EtSNa-DMF ether cleavage of the corresponding methoxyphenyl analogues 2m, 2n, and 23, respectively, with the secondary amines 20 and 22 going through the N-formyl intermediates 19 and 21.The p-ethoxy analogue 26 was obtained by O-ethylation of 19, followed by base hydrolysis of the amide 25.The greatest analgesic potency in mouse writhing and rat paw-pain assays was observed for para-substituted compounds.Bicifadine, 1-(4-methylphenyl)-3-azabicyclohexane (2b), was the most potent member of the series and is presently undergoing clinical trials in man.Analgesic activity of 2b is limited to the (+) enantiomer 2v, which has the 1R,5S absolute configuration as determined by single-crystal X-ray analysis.The N-methyl analogue (27d) of 2b showed significant analgesic potency, whereas the N-allyl (27a), N-(cyclopropylmethyl) (27b), and N-(n-hexyl) (27c) analogues were inactive.Bicifadine (2b) showed a nonnarcotic profile different from analogous azabicycloalkane and 3-phenylpyrrolidine analgesics.

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