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685835-75-0

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685835-75-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 685835-75-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,5,8,3 and 5 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 685835-75:
(8*6)+(7*8)+(6*5)+(5*8)+(4*3)+(3*5)+(2*7)+(1*5)=220
220 % 10 = 0
So 685835-75-0 is a valid CAS Registry Number.

685835-75-0Downstream Products

685835-75-0Relevant 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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