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A New 9-Methoxyyohimbine-Type Indole Alkaloid from Mitragyna africanus
2004
Chemical and pharmaceutical bulletin
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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.
doi:10.1248/cpb.52.359
pmid:14993762
fatcat:6bzaegaounhk7a7wosllwrn2qu