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The metabolism of swertiamarin in vivo was studied by LC‐MS following 2,4‐dinitrophenylhydrazine derivatization. The ionization efficiency of the main metabolite erythrocentaurin was greatly enhanced by the new analytical method developed, and erythrocentaurin was successfully detected for the first time in rat plasma after oral administration of swertiamarin. Methyl 4‐formylbenzoate was used as the...
The metabolism of swertiamarin (STM) in vivo was studied by LC/MS following picolinoyl derivatization. Incubation of erythrocentaurin (ECR), one of the main in vitro metabolites of STM by intestinal bacteria, with liver microsome indicated that STM may be metabolized to the final metabolite 3,4‐dihydro‐5‐(hydroxymethyl) isochroman‐1‐one (HMIO) in vivo. After hydrolyzation with sulfatase, HMIO was...
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