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121373-21-5

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121373-21-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121373-21-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,3,7 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 121373-21:
(8*1)+(7*2)+(6*1)+(5*3)+(4*7)+(3*3)+(2*2)+(1*1)=85
85 % 10 = 5
So 121373-21-5 is a valid CAS Registry Number.

121373-21-5Relevant articles and documents

Antibacterials. Synthesis and structure-activity studies of 3-aryl-2-oxooxazolidines. 1. The 'B' group

Gregory,Brittelli,Wang,Wuonola,McRipley,Eustice,Eberly,Bartholomew,Slee,Forbes

, p. 1673 - 1681 (2007/10/02)

The synthesis and structure/activity studies of the effect of varying the 'B' group in a series of oxazolidinone antibacterials (I) are described. Two synthetic routes were used: (1) alkylation of aniline with glycidol followed by dialkyl carbonate heterocyclization to afford I (A = H, B = OH), whose arene ring was further elaborated by using electrophilic aromatic substitution methodology; (2) cycloaddition of substituted aryl isocyanates with epoxides to give A and B with a variety of values. I with B = OH or Br were converted to other 'B' functionalities by using S(N)2 methodology. Antibacterial evaluation of compounds I with A = acetyl, isopropyl, methylthio, methylsulfinyl, methylsulfonyl, and sulfonamido and a variety of different 'B' groups against Staphylococcus aureus and Enterococcus faecalis concluded that the compounds with B = aminoacyl, and particularly acetamido, were the most active of those examined in each A series, possessing MICs in the range of 0.5-4 μg/mL for the most active compounds described.

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