Studies on Monoterpene Glucosides and Related Natural Products. XLII. On the Possibility of the Intermediacy of 10-Hydroxyloganin in the Biosynthesis of Secologanin

Abstract

Administration of various ³H labeled compounds, deoxyloganic acid (6), loganin (1), 10-hydroxyloganin (3) and 7-epi-10-hydroxyloganin (5) to Lonicera morrowii and A dina pilulifera suggested that, unlike the first two compounds, neither 3 nor 5 was a precursor of secologanin (2). This conclusion was supported by dilution analysis of 3 and 5 carried out during the same experiments.