A New 9-Methoxyyohimbine-Type Indole Alkaloid from Mitragyna africanus

A New 9-Methoxyyohimbine-Type Indole Alkaloid from Mitragyna africanus

A new yohimbine-type indole alkaloid (1) was isolated from the stem bark of Mitragyna africanus (WILLD.) collected in Nigeria, along with known seven Corynanthe-type oxindole alkaloids, two secoiridoids, three lignans, and a quinovic acid derivative. Their structures were elucidated by spectroscopic...

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Veröffentlicht in:Chemical & Pharmaceutical Bulletin 2004, Vol.52(3), pp.359-361
Hauptverfasser: Takayama, Hiromitsu, Ishikawa, Hayato, Kitajima, Mariko, Aimi, Norio, Aji, Baba Muhammad
Format: Artikel
Sprache:eng
Schlagworte:
alkaloid
indole
Indole Alkaloids - chemistry
Indole Alkaloids - isolation & purification
Lignans - chemistry
Lignans - isolation & purification
Mitragyna
Mitragyna - chemistry
Molecular Structure
Nigeria
NMR
Nuclear Magnetic Resonance, Biomolecular
Plant Bark - chemistry
Plant Stems - chemistry
Plants, Medicinal - chemistry
Yohimbine - analogs & derivatives
Yohimbine - chemistry
Yohimbine - isolation & purification
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Zusammenfassung:A new yohimbine-type indole alkaloid (1) was isolated from the stem bark of Mitragyna africanus (WILLD.) collected in Nigeria, along with known seven Corynanthe-type oxindole alkaloids, two secoiridoids, three lignans, and a quinovic acid derivative. Their structures were elucidated by spectroscopic analyses.
ISSN:0009-2363
1347-5223
DOI:10.1248/cpb.52.359