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Chemical constituents from the leaves of Hydrangea macrophylla var. thunbergii (III): Absolute stereostructures of hydramacrosides A and B, secoiridoid glucoside complexes with inhibitory activity on histamine release

DOI: 10.1248/cpb.47.1753

Source and publish data:

Chemical and Pharmaceutical Bulletin p. 1753 - 1758 (1999)

Update date:2022-08-11

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Authors:

Matsuda, HisashiMatsuda, Hisashi

Shimoda, HiroshiShimoda, Hiroshi

Uemura, ToshiakiUemura, Toshiaki

Ueda, TomohikoUeda, Tomohiko

Yamahara, JohjiYamahara, Johji

Yoshikawa, MasayukiYoshikawa, Masayuki

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Article abstract of DOI:10.1248/cpb.47.1753

Following the characterization of dihydroisocoumarin constituents, two secoiridoid glucoside complexes, called hydramacrosides A and B, were isolated from the leaves of Hydrangea macrophylla SERINGE var. thunbergii MAKINO. The absolute stereostructures of hydramacrosides A and B were elucidated on the basis of chemical and physicochemical evidence, which included the application of the 13C-NMR glycosylation shift rule of 1,1'- disaccharides and the modified Mosher's method. Hydramacrosides A and B exhibited an inhibitory effect on histamine release from rat mast cells induced by an antigen-antibody reaction.

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Full text of DOI:10.1248/cpb.47.1753

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