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220395-81-3

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220395-81-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220395-81-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,3,9 and 5 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 220395-81:
(8*2)+(7*2)+(6*0)+(5*3)+(4*9)+(3*5)+(2*8)+(1*1)=113
113 % 10 = 3
So 220395-81-3 is a valid CAS Registry Number.

220395-81-3Downstream Products

220395-81-3Relevant articles and documents

Antagonists of the human CCR5 receptor as anti-HIV-1 agents. Part 2: Structure-activity relationships for substituted 2-aryl-1-[N-(methyl)-N-(phenylsulfonyl)amino]-4-(piperidin-1-yl)butanes

Finke, Paul E.,Meurer, Laura C.,Oates, Bryan,Mills, Sander G.,MacCoss, Malcolm,Malkowitz, Lorraine,Springer, Martin S.,Daugherty, Bruce L.,Gould, Sandra L.,DeMartino, Julie A.,Siciliano, Salvatore J.,Carella, Anthony,Carver, Gwen,Holmes, Karen,Danzeisen, Renee,Hazuda, Daria,Kessler, Joseph,Lineberger, Janet,Miller, Michael,Schleif, William A.,Emini, Emilio A.

, p. 265 - 270 (2007/10/03)

(2S)-2-(3,4-Dichlorophenyl)-1-[N-(methyl)-N-(phenylsulfonyl)amino]-4-[spiro(2 ,3-dihydrobenzthiophene-3,4′-piperidin-1′yl)]butane S-oxide (3) has been identified as a potent CCR5 antagonist lead structure having an IC50 = 35 nM. Herein, we describe the structure-activity relationship studies directed toward the requirement for and optimization of the C-2 phenyl fragment. The phenyl was found to be important for CCR5 antagonism and substitution was limited to small moieties at the 3-position (13 and 16: X = H, 3-F, 3-Cl, 3-Me).

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