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1138161-59-7

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1138161-59-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1138161-59-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,3,8,1,6 and 1 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1138161-59:
(9*1)+(8*1)+(7*3)+(6*8)+(5*1)+(4*6)+(3*1)+(2*5)+(1*9)=137
137 % 10 = 7
So 1138161-59-7 is a valid CAS Registry Number.

1138161-59-7Relevant articles and documents

Synthesis and Evaluation of Antibacterial Activity of Bottromycins

Yamada, Takeshi,Yagita, Miu,Kobayashi, Yutaka,Sennari, Goh,Shimamura, Hiroyuki,Matsui, Hidehito,Horimatsu, Yuki,Hanaki, Hideaki,Hirose, Tomoyasu,Omura, Satoshi,Sunazuka, Toshiaki

, p. 7135 - 7149 (2018)

Total synthesis of bottromycin A2 can be accomplished through a diastereoselective Mannich reaction of a chiral sulfinamide, mercury-mediated intermolecular amidination, and cyclization of a constrained tetracyclic peptide. Exploitation of this process allowed the synthesis of several novel bottromycin analogs. The antimicrobial activity of these analogs was evaluated in vitro against Gram-positive bacteria, such as methicillin resistant Staphylococcus aureus (MRSA) and vancomycin resistant enterococci (VRE). Structure-activity relationships were explored taking into consideration the unique three-dimensional structure of the compounds. Notably, one of the new analogs devoid of a methyl ester, which is known to lower the in vivo efficacy of bottromycin, exhibited antibacterial bioactivity comparable to that of vancomycin.

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