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638221-54-2

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638221-54-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 638221-54-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,8,2,2 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 638221-54:
(8*6)+(7*3)+(6*8)+(5*2)+(4*2)+(3*1)+(2*5)+(1*4)=152
152 % 10 = 2
So 638221-54-2 is a valid CAS Registry Number.

638221-54-2Downstream Products

638221-54-2Relevant articles and documents

Design, synthesis, and biological evaluation of 8-biarylquinolines: A novel class of PDE4 inhibitors

Gallant, Michel,Chauret, Nathalie,Claveau, David,Day, Stephen,Deschenes, Denis,Dube, Daniel,Huang, Zheng,Lacombe, Patrick,Laliberte, France,Levesque, Jean-Francois,Liu, Susana,Macdonald, Dwight,Mancini, Joseph,Masson, Paul,Mastracchio, Anthony,Nicholson, Donald,Nicoll-Griffith, Deborah A.,Perrier, Helene,Salem, Myriam,Styhler, Angela,Young, Robert N.,Girard, Yves

, p. 1407 - 1412 (2008/12/22)

The structure-activity relationship of a novel series of 8-biarylquinolines acting as type 4 phosphodiesterase (PDE4) inhibitors is described herein. Prototypical compounds from this series are potent and non-selective inhibitors of the four distinct PDE4 (IC50 50 0.5 μM) the LPS-induced release of the cytokine TNF-α. Optimized inhibitors were evaluated in vivo for efficacy in an ovalbumin-induced bronchoconstriction model in conscious guinea pigs. Their propensity to produce an emetic response was evaluated by performing pharmacokinetic studies in squirrel monkeys. This work has led to the identification of several compounds with excellent in vitro and in vivo profiles, including a good therapeutic window of efficacy over emesis.

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