2-Methoxycanthin-6-one: A New Alkaloid from the Stem Wood ofQuassia amara

2-Methoxycanthin-6-one: A New Alkaloid from the Stem Wood ofQuassia amara New Canthin-6-one Alkaloids fromQuassia amara Indole Alkaloids fromQuassia amara Isolation of 4‐Hydroxy‐5‐methoxycanthin‐6‐one from Picrasma quassioides and Revision of a Previously Reported Structure Isolation of 4‐Hydroxy‐5‐methoxycanthin‐6‐one from <i>Picrasma quassioides</i> and Revision of a Previously Reported Structure Antifertility activity of Quassia amara in male rats — In vivo study Studies on the constituents of Ailanthus altissima Swingle. On the alkaloidal constituents. Alkaloids and quassinoids from Ailanthus malabarica Canthin-6-one alkaloids fromPicrasma quassioidesand their cytotoxic activity Studies on the constituents of Picrasma quassioides BENNET. II. On the alkaloidal constituents.