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95237-09-5

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95237-09-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 95237-09-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,5,2,3 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 95237-09:
(7*9)+(6*5)+(5*2)+(4*3)+(3*7)+(2*0)+(1*9)=145
145 % 10 = 5
So 95237-09-5 is a valid CAS Registry Number.

95237-09-5Relevant articles and documents

Synthesis, biological, and chiroptical activity of 3-phenyl-clavams

Cierpucha, Maciej,Solecka, Jolanta,Frelek, Jadwiga,Szczukiewicz, Patrycja,Chmielewski, Marek

, p. 405 - 416 (2007/10/03)

The [2+2]cycloaddition of chlorosulfonyl isocyanate to simple vinyl ethers derived from the 2-O-sulfonylated (R) and (S) 1-phenyl-1,2-ethanediol leads to 4-alkoxy-azetidin-2-ones with a moderate stereoselectivity. The cycloaddition to analogous (Z)-propenyl ethers proceeds stereospecifically with the retention of the olefin configuration. The intramolecular alkylation of β-lactam nitrogen atom furnished all possible stereoisomers of 3-phenyl- and 6-methyl-3-phenyl-clavams. The biological and chiroptical activity of synthesized clavams was investigated. The (3R,5R)-diastereomer 30 showed higher inhibition of bacterial enzymes than other related compounds.

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