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Studies on Monoterpene Glucosides and Related Natural Products Part 51 . Absolute Structures of Hydrangenosides A, B, C, D, E, F, and G. Novel Type Secoiridoid Glucosides from Two Hydrangea Plants
Author(s) -
Uesato Shinichi,
Takeda Yoshio,
Hashimoto Toshihiro,
Uobe Kenichi,
Inouye Hiroyuki,
Taguchi Heihachiro,
Endo Toru
Publication year - 1984
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19840670812
Subject(s) - loganin , chemistry , monoterpene , stereochemistry , saxifragaceae , glucoside , botany , organic chemistry , high performance liquid chromatography , biology , medicine , alternative medicine , pathology
Abstract From Hydrangea macrophylla var. Macrophylla , four new secoiridoid glucosides, hydrangenosies A, B, C and D, were isolated, along with the known iridoid glucosides loganin, secologanin, secologanic acid and sweroside. Moreover, hydrangenosides E, F, and G, the glucosides of the same class, were isolated together with hydrangenosides C and D from Hydrangea Scandens . Based on spectroscopic and chemical methods, the novel structures of the new glucosides consisting of secologanin and a shikimate‐malonate‐derived unit which are joined by a CC bond were elucidated. However, seven other Hydrangea plants were tested and found not to contain hydrangenoside‐type glucosides.