English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Isolated rat livers were perfused with 3,4-dimethoxybenzaldehyde and 3,4-dimethoxybenzoic acid, which were  14 C-labelled in the m eta-and/or para-configurated methoxy group. Because the aldehyde group was completely oxydized to the carboxylic acid, the perfusions with 3,4-dimethoxybenzalde­ hyde and those with 3,4-dimethoxybenzoic acid exhibited principally the same results. After per­ fusion with a 1:1 mixture of (4 -O -[ 14 C]methyl)-and (3 -O -[ 14 C]methyl)-3,4-dimethoxybenzalde­ hyde, each of which had the same specific activity, thin layer chromatography of an extract of the perfusate revealed both radioactive 4-hydroxy-3-methoxybenzoic acid and radioactive 3-hydroxy-4-methoxybenzoic acid as demethylation products. The distribution of radioactivity between these two metabolites was determined as 20:1. Thus, demethylation of the 3,4-dimethoxyphenyl com­pound occurs preferentially at the para-configurated methoxy group. After perfusion with a mixture of (4-O-[ 14 C] methyl) -and (3 -O -[ 14 C] methyl) -3,4-dimethoxybenzoic acid under identical conditions the distribution of radioactivity of the named demethylation products was determined as 15:1.

zeitschrift für naturforschung c

Metabolisierung von 3.4-Dimethoxybenzaldehyd und 3.4-Dimeth- oxybenzoesäure in der isoliert perfundierten Rattenleber / Metabolism of 3,4-Dimethoxybenzaldehyde and 3,4-Dimethoxybenzoic Acid in Perfused Rat Liver