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171725-33-0

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171725-33-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 171725-33-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,7,2 and 5 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 171725-33:
(8*1)+(7*7)+(6*1)+(5*7)+(4*2)+(3*5)+(2*3)+(1*3)=130
130 % 10 = 0
So 171725-33-0 is a valid CAS Registry Number.

171725-33-0Relevant articles and documents

Synthesis and pharmacological properties of ureidomethylcarbamoylphenylketone derivatives. A new potent and subtype-selective nonpeptide CCK-B/gastrin receptor antagonist, S-0509

Hagishita, Sanji,Murakami, Yasushi,Seno, Kaoru,Kamata, Susumu,Haga, Nobuhiro,Konoike, Toshiro,Kanda, Yasuhiko,Kiyama, Ryuichi,Shiota, Takeshi,Ishihara, Yasunobu,Ishikawa, Michio,Shimamura, Mayumi,Abe, Koji,Yoshimura, Koji

, p. 1695 - 1714 (2007/10/03)

A novel series of CCK-B/gastrin receptor antagonists - ureidomethylcarbamoylphenylketone derivatives - were designed, synthesized, and evaluated for activity. Structure-activity relationship studies revealed the importance of a carboxylic acid at substituent R2 and a tert-butoxycarbonyl group at R1 in structure A. Compound 7a (S-0509) showed remarkable affinity for the CCK-B/gastrin receptor and a subtype selectivity profile in vitro. Administration (id) of 7a led to excellent inhibition of gastric acid secretion induced by pentagastrin in anesthetized rats with an ED50 value of 0.014 mg/kg. Furthermore, 7a proved to have poor blood-brain permeability by its small effect on enhancement of morphine analgesia. Thus, S-0509 has an increase in selectivity for the peripheral effects of gastrin antagonism from the central effects of CCK-B antagonism.

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