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1174549-42-8

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1174549-42-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1174549-42-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,4,5,4 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1174549-42:
(9*1)+(8*1)+(7*7)+(6*4)+(5*5)+(4*4)+(3*9)+(2*4)+(1*2)=168
168 % 10 = 8
So 1174549-42-8 is a valid CAS Registry Number.

1174549-42-8Relevant articles and documents

Efficient Total Synthesis of Bongkrekic Acid and Apoptosis Inhibitory Activity of Its Analogues

Matsumoto, Kenji,Suyama, Masaki,Fujita, Satoshi,Moriwaki, Takuya,Sato, Yukiko,Aso, Yoshifumi,Muroshita, Satoshi,Matsuo, Hiroshi,Monda, Keishi,Okuda, Katsuhiro,Abe, Masato,Fukunaga, Hiroyuki,Kano, Arihiro,Shindo, Mitsuru

, p. 11590 - 11602 (2015/08/03)

Bongkrekic acid (BKA), isolated from the bacterium Burkholderia cocovenenans, is an inhibitor of adenine nucleotide translocator, which inhibits apoptosis, and is thus an important tool for the mechanistic investigation of apoptosis. An efficient total synthesis of BKA has been achieved by employing a three-component convergent strategy based on Kocienski-Julia olefination and Suzuki-Miyaura coupling. It is noteworthy that segment B has been prepared as a new doubly functionalized coupling partner, which contributes to shortening of the number of steps. Torquoselective olefination with an ynolate has also been applied for the efficient construction of an unsaturated ester. Furthermore, it is revealed that 1-methyl-2-azaadamantane N-oxyl is an excellent reagent for final oxidation to afford BKA in high yield. Based on the total synthesis, several BKA analogues were prepared for structure-activity relationship studies, which indicated that the carboxylic acid moieties were essential for the apoptosis inhibitory activity of BKA. More easily available BKA analogues with potent apoptosis inhibitory activity were also developed. Stripped BKA: The highly efficient second-generation total synthesis of bongkrekic acid (BKA), an apoptosis inhibitor, has been developed. The synthesis features a three-component convergent strategy based on a Kocienski-Julia olefination and Suzuki-Miyaura coupling. The structure-activity relationship (SAR) is also examined for the first time (see scheme).

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