Comparison between the Molecular and Crystal Structures of a Benzylpenicillin Ester and its Corresponding Sulfoxide with Drastically Reduced Biological Activity

Abstract

A comparative X-ray structure determination was performed to elucidate possible conformational differences between penicillins and penicillin sulfoxides. Penicillin-G-acetoxy-methylester and its Iß-oxide were used as model substances, because the only chemical difference between both compounds resides in the thiazolidine ring sulfur oxidation. On the basis… (More)

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