Antisweet Natural Products. V. Structures of Gymnemic Acids VIII-XII from Gymnema sylvestre R. BR

Five oleanane-type triterpenoid saponins, gymnemic acids VIII-XII as antisweet principles were isolated from the leaves of Gymnema sylvestre (Asclepiadaceae). Their structures were established on the basis of spectral and chemical evidence. They were characterized as glucosideuronic acid derivatives...

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Veröffentlicht in:	Chemical & pharmaceutical bulletin 1992/07/25, Vol.40(7), pp.1779-1782
Hauptverfasser:	YOSHIKAWA, Kazuko, NAKAGAWA, Miki, YAMAMOTO, Ryouko, ARIHARA, Shigenobu, MATSUURA, Kouji
Format:	Artikel
Sprache:	eng
Schlagworte:	2-methylbutyric acid acetic acid acylsaponin antisweet substance Asclepiadaceae Gymnema sylvestre gymnemagenin gymnemic acid oleanane tiglic acid
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description	Five oleanane-type triterpenoid saponins, gymnemic acids VIII-XII as antisweet principles were isolated from the leaves of Gymnema sylvestre (Asclepiadaceae). Their structures were established on the basis of spectral and chemical evidence. They were characterized as glucosideuronic acid derivatives of gymnemagenin acylated with acetyl, tigloyl and/or 2-methylbutyroyl moieties.
doi_str_mv	10.1248/cpb.40.1779
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language	eng
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source	J-STAGE Free; EZB-FREE-00999 freely available EZB journals; Free Full-Text Journals in Chemistry
subjects	2-methylbutyric acid acetic acid acylsaponin antisweet substance Asclepiadaceae Gymnema sylvestre gymnemagenin gymnemic acid oleanane tiglic acid
title	Antisweet Natural Products. V. Structures of Gymnemic Acids VIII-XII from Gymnema sylvestre R. BR
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