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885957-47-1

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885957-47-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 885957-47-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,5,9,5 and 7 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 885957-47:
(8*8)+(7*8)+(6*5)+(5*9)+(4*5)+(3*7)+(2*4)+(1*7)=251
251 % 10 = 1
So 885957-47-1 is a valid CAS Registry Number.

885957-47-1Relevant articles and documents

Synthesis of novel 1,2,4-oxadiazoles and analogues as potential anticancer agents

Kumar, Dalip,Patel, Gautam,Chavers, Angela K.,Chang, Kuei-Hua,Shah, Kavita

, p. 3085 - 3092 (2011)

A library of 3,5-disubstituted-1,2,4-oxadiazoles 7-9 and their bioisosters, 1,3,4-oxadiazole 14 and 1,3,4-thiadiazole 16, were synthesized and evaluated in vitro for their anticancer potential against a panel of six human cancer cell lines. The key step in the synthesis of oxadiazoles 7-9 involve coupling of amidoxime 6 with an appropriate carboxylic acid followed by thermal cyclization. The bioisosteres, 1,3,4-oxadiazole 14 and 1,3,4-thiadiazole 16 were prepared from the reaction of a common precursor diacylhydrazine 13 with thionyl chloride and Lawesson′s reagent, respectively. The anticancer studies on the synthesized compounds revealed that presence of a cyclopentyloxy or n-butyloxy on the C-3 aryl ring and piperdin-4-yl or trichloromethyl at the C-5 position of 1,2,4-oxadiazole is essential for good activity. In particular, 1,2,4-oxadiazole 7i and analogue 1,3,4-thiadiazole 16 exhibited significant activity against DU145 (IC50: 9.3 μM) and MDA-MB-231 (IC 50: 9.2 μM) cell lines, respectively.

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