Tetrahydroisoquinoline-monoterpene and iridoid glycosides from Alangium lamarckii

From the water soluble fraction of the dried fruits of Alangium lamarckii, four tetrahydroisoquinoline-monoterpene glycosides, 6- O-methyl- N-deacetylisoipecosidic acid, 7- O-methyl- N-deacetylisoipecosidic acid, 6,7-di- O-methyl- N-deacetylisoipecosidic acid and 6″- O-α- d-glucopyranosyl-6- O-methy...

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Veröffentlicht in:Phytochemistry (Oxford) 2001-03, Vol.56 (6), p.623-630
Hauptverfasser: Itoh, Atsuko, Tanahashi, Takao, Tabata, Masako, Shikata, Miho, Kakite, Michiko, Nagai, Maho, Nagakura, Naotaka
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container_issue 6
container_start_page 623
container_title Phytochemistry (Oxford)
container_volume 56
creator Itoh, Atsuko
Tanahashi, Takao
Tabata, Masako
Shikata, Miho
Kakite, Michiko
Nagai, Maho
Nagakura, Naotaka
description From the water soluble fraction of the dried fruits of Alangium lamarckii, four tetrahydroisoquinoline-monoterpene glycosides, 6- O-methyl- N-deacetylisoipecosidic acid, 7- O-methyl- N-deacetylisoipecosidic acid, 6,7-di- O-methyl- N-deacetylisoipecosidic acid and 6″- O-α- d-glucopyranosyl-6- O-methyl- N-deacetylisoipecosidic acid, and an iridoid glycoside, 6′- O-α- d-glucopyranosylloganic acid, were isolated, together with six known compounds. The structures of the previously unknown compounds were determined by spectroscopic and chemical means. The significance of these glucosides in the biogenesis of Alangium alkaloids is discussed; 6- O-methyl- N-deacetylisoipecosidic acid was also chemically converted into 10- O-demethylprotoemetine and dihydroisoalangine.
doi_str_mv 10.1016/S0031-9422(00)00417-9
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subjects 6′- O-α- d-glucopyranosylloganic acid
Alangiaceae
Alangium lamarckii
Alkaloids
Asteraceae - chemistry
Biological and medical sciences
Chemical constitution
Fruits
Fundamental and applied biological sciences. Psychology
Glycosides - chemistry
Glycosides - isolation & purification
Ipecoside
Iridoid glycoside
Isoquinolines - chemistry
Isoquinolines - isolation & purification
Magnetic Resonance Spectroscopy
Medicine, Traditional
Molecular Structure
N-Deacetylisoipecosidic acids
Phytotherapy
Plant physiology and development
Plants, Medicinal - chemistry
Pyrans - chemistry
Pyrans - isolation & purification
Structure elucidation
Terpenes - chemistry
Terpenes - isolation & purification
Tetrahydroisoquinoline-monoterpene glycosides
title Tetrahydroisoquinoline-monoterpene and iridoid glycosides from Alangium lamarckii
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