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438037-26-4

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438037-26-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 438037-26-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,8,0,3 and 7 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 438037-26:
(8*4)+(7*3)+(6*8)+(5*0)+(4*3)+(3*7)+(2*2)+(1*6)=144
144 % 10 = 4
So 438037-26-4 is a valid CAS Registry Number.

438037-26-4Downstream Products

438037-26-4Relevant articles and documents

Studies on mimicry of naturally occurring annonaceous acetogenins: Non-THF analogues leading to remarkable selective cytotoxicity against human tumor cells

Zeng, Bu-Bing,Wu, Yikang,Jiang, Sheng,Yu, Qian,Yao, Zhu-Jun,Liu, Zhong-Hai,Li, Hong-Yan,Li, Yan,Chen, Xiao-Guang,Wu, Yu-Lin

, p. 282 - 290 (2007/10/03)

A class of structurally simplified analogues of the naturally occurring annonaceous acetogenins were developed, amongst which some non-THF analogues showed remarkable cytotoxicities against tumor cell lines, as well as good selectivity between human tumor cells and normal cells. The synthetic routes were significantly shortened because of the removal of the chiral centers bearing the THF rings on the natural templates. This simplification also provides access to the parallel synthesis of these mimics by a combinatorial strategy. The remaining stereogenic centers at the positions α to the ethereal links were introduced by the Chiron approach from the easily accessible chiral building blocks 6a and/or 6b, made in turn from L-ascorbic acid or Dmannitol, while the one in the butenolide segment was taken from L-lactate. All four diastereomeric non-THF analogues 2a-2d showed remarkable activity against the HCT-8 cell line, and better differentiation was found when testing against the HT-29 cell line. It was also discovered that both the butenolide and ethylene glycol subunits play essential roles in the cytotoxicities against tumor cell lines, while the 10-substituted hydroxy group and the absolute configuration of methyl group at the butenolide moiety are less important for their activity.

Enantiopure simple analogues of annonaceous acetogenins with remarkable selective cytotoxicity towards tumor cell lines

Zeng, Bu-Bing,Wu, Yikang,Yu, Qian,Wu, Yu-Lin,Li, Yan,Chen, Xiao-Guang

, p. 1934 - 1937 (2007/10/03)

Structure simplification with conservation of the essential functionalities for biological activity has been achieved with the design and synthesis of four analogues of annonaceous acetogenins. The compounds ((15 R/S, 24 R/S)-1) are easily synthesized wit

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