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138560-19-7

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138560-19-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138560-19-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,5,6 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138560-19:
(8*1)+(7*3)+(6*8)+(5*5)+(4*6)+(3*0)+(2*1)+(1*9)=137
137 % 10 = 7
So 138560-19-7 is a valid CAS Registry Number.

138560-19-7Relevant articles and documents

Concise synthesis and antitumor activity of Bengamide e and its analogs

Zhang, Wenxuan,Liang, Qingzhao,Li, Hui,Meng, Xiangbao,Li, Zhongjun

, p. 664 - 672 (2013/07/27)

Bengamide E (1a) and C-2 epimer (1b), free hydroxyl analogs (1c) and (1d), and shorter chain analog (1e) were synthesized by utilizing (2R,3S,4R)-2,3,4- tris(benzyloxy)hex-5-enal (2a) as the chiral building block. Preliminary biological studies revealed that only compound 1c showed slightly weaker activity than Bengamide E (1a) against MDA-MB-453 human breast carcinoma cells, MCF-7 human breast cancer cells and HCT-116 colon cancer cells, with the others being inactive. These results suggest that the correct stereochemistry at C-2, the alkylation on C-2 hydroxyl group, as well as the length of the carbon chain of Bengamide E are critical for structural recognition and binding to the target(s).

Diastereoselectivity in the intramolecular nitrone, oxime, and nitrile oxide cycloaddition reactions. Synthesis of amino inositol derivatives as α-glucosidase inhibitors

Peet, Norton P.,Huber, Edward W.,Farr, Robert A.

, p. 7537 - 7550 (2007/10/02)

The diastereoselectivity in the intramolecular 1,3-dipolar cycloaddition reactions of 4 and 5 (R=Bn, 4-MeOBn) was examined.

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