Guianensine, a zwitterionic alkaloid from Strychnos guianensis

Guianensine, a zwitterionic alkaloid from Strychnos guianensis Guiaflavine, a New Bisindole Quaternary Alkaloid from the Stem Bark of<i>Strychnos</i><i>g</i><i>uianensis</i> Guiaflavine, a New Bisindole Quaternary Alkaloid from the Stem Bark of<i>Strychnos</i><i>g</i><i>uianensis</i> 9-methoxygeissoschizol, an alkaloid from bark of Strychnos guianensis 5′,6′-Dehydroguiachrysine and 5′,6′-dehydroguiaflavine, two curarizing quaternary indole alkaloids from the stem bark of Strychnos guianensis 5′,6′-Dehydroguiachrysine and 5′,6′-dehydroguiaflavine, two curarizing quaternary indole alkaloids from the stem bark of Strychnos guianensis Quaternary indole alkaloids from the stem bark of Strychnos guianensis Quaternary indole alkaloids from the stem bark of Strychnos guianensis La strychnoxanthine, un alcaloïde monoterpénique d'un nouveau type isolé à partir du Strychnos gossweileri Structure of ngouniensine: an indole alkaloid of a new type from Strychnos ngouniensis