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405517-54-6

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405517-54-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 405517-54-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,5,5,1 and 7 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 405517-54:
(8*4)+(7*0)+(6*5)+(5*5)+(4*1)+(3*7)+(2*5)+(1*4)=126
126 % 10 = 6
So 405517-54-6 is a valid CAS Registry Number.

405517-54-6Relevant articles and documents

Novel Cyclopropabenzofuranyl Pyridopyrazinediones

-

Paragraph 0302; 0303, (2016/08/29)

Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I wherein X, R1, R2a, R2b, R4a, R4b, R5a, R5b, R6, R7, R10, R11, and y are as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.

Stereocontrolled preparation of a nonpeptidal (-)-spirobicyclic NK-1 receptor antagonist

Maligres, Peter E.,Waters, Marjorie M.,Lee, Jaemoon,Reamer, Robert A.,Askin, David,Ashwood, Michael S.,Cameron, Mark

, p. 1093 - 1101 (2007/10/03)

The synthesis of a spirobicyclic NK-1 receptor (Substance-P) antagonist 1 antipode is described. Retrosynthetic analysis reveals an allylic halide A bearing the cyclopropoxy-substituted aryl group and a 2-phenyl-3-piperidone B. The stereochemistry in the spirobicyclic system bearing three chiral centers is initially set via a highly diastereoselective zinc-mediated coupling of the allylic bromide 23 to the optically active ketopiperidine 3. The remaining benzylic asymmetric center is set by a diastereoselective hydroboration followed by cyclization to the spirobicyclic system.

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