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185802-89-5

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185802-89-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 185802-89-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,5,8,0 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 185802-89:
(8*1)+(7*8)+(6*5)+(5*8)+(4*0)+(3*2)+(2*8)+(1*9)=165
165 % 10 = 5
So 185802-89-5 is a valid CAS Registry Number.

185802-89-5Downstream Products

185802-89-5Relevant articles and documents

Synthesis and biological evaluation of phenylacetyl derivatives having low central nervous system permeability as potent and selective M2 muscarinic receptor antagonists

Watanabe, Toshihiro,Kakefuda, Akio,Tanaka, Akihiro,Takizawa, Kenji,Hirano, Seiko,Shibata, Hiroshi,Yamagiwa, Yoko,Yanagisawa, Isao

, p. 53 - 68 (2007/10/03)

A series of phenylacetyl derivatives containing the 5,10-dihydro-11H- dibenzo[b,e][1,4]diazepin-11-one or 5,11-dihydro-6H-pyrido[2,3- b][1,4]benzodiazepin-6-one skeleton was prepared and evaluated for their binding affinities to muscarinic receptors in vitro and for antagonism of bradycardia, salivation and tremor in vivo. Among them, compounds 56 and 66 had high affinity for M2 muscarinic receptors in the heart (pK(i) = 8.7 and 8.9, respectively) with low affinity for M3 muscarinic receptors in the submandibular gland. A structure-activity relationship (SAR) study suggested that the high M2 selectivity over the M3 muscarinic receptors of 56 may be attributed to the direction of the carboxamide carbonyl group. In in vivo studies, 56 and 66 antagonized oxotremorine-induced bradycardia in rats on both intravenous and oral administration, and their heart rate increasing effect in dogs with nocturnal bradycardia was about 3-fold greater than that of AF-DX 116. Furthermore, they had almost no influence on oxotremorine- induced tremor in mice, presenting no evidence of central transfer.

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