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melodinus suaveolens/indole
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Cytotoxic indole alkaloids from the fruits of Melodinus cochinchinensis.
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Eight indole alkaloids, melosines A-H, together with 13 known alkaloids, were isolated from the fruits of Melodinus cochinchinensis. The structure elucidation of isolated secondary metabolites was based on comprehensive spectroscopic data analysis. Melosine B showed moderate cytotoxic activity
Melodinines A-G, monoterpenoid indole alkaloids from Melodinus henryi.
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Nineteen monoterpenoid indole alkaloids including seven new ones, melodinines A-G (1-7), were isolated from Melodinus henryi. The structures of the new compounds were elucidated using spectroscopic methods, and the structure of compound 4 was confirmed by single-crystal X-ray diffraction analysis.
Cytotoxic indole alkaloids from Melodinus khasianus and Melodinus tenuicaudatus.
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Four new indole alkaloids, melodinusines A-D (1, 2, 6, and 7), along with 26 known indole alkaloids, were isolated from Melodinus tenuicaudatus and Melodinus khasianus (Melodinus genus). Among them, 1 and 2 are aspidospermine-aspidospermine-type bisindole alkaloids while 7 is a novel melodinus-type
Melognine, a novel monoterpenoid indole alkaloid from Melodinus fusiformis that induce apoptosis in BT549 cells.
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A novel monoterpenoid indole alkaloid, melognine (1) possessing an unprecedented skeleton with a 6/6/5/5/6/6 hexatomic rearranged ring system was isolated from the stems of Melodinus fusiformis. The structure with absolute configuration of 1 was established by extensive
Melotenuines A-E, cytotoxic monoterpenoid indole alkaloids from Melodinus tenuicaudatus.
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Five new monoterpenoid indole alkaloids, melotenuines A-E (1-5), along with 18 known indole alkaloids, were isolated from the twigs and leaves of Melodinus tenuicaudatus. The structures of the new alkaloids were determined by a combination of MS, NMR and ECD analysis. Melotenuine A (1) represents
Structurally Diverse Indole Alkaloids with Vasorelaxant Activity from Melodinus hemsleyanus
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Six new structurally diverse indole alkaloids, melohemsines J-M (1-4), 11-hydroxy-Δ14-vincamine (5), and 11-hydroxy-16-epi-Δ14-vincamine (6), and 15 known alkaloids were isolated from the leaves and twigs of Melodinus hemsleyanus Diels.
Cytotoxic Indole Alkaloid 3α-Acetonyltabersonine Induces Glioblastoma Apoptosis via Inhibition of DNA Damage Repair.
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Cytotoxic indole alkaloids from Melodinus suaveolens, which belongs to the toxic plant family Apocynaceae, demonstrated impressive antitumor activities in many tumor types, but less application in glioblastoma, which is the lethal brain tumor. In the present study, we reported the anti-glioblastoma
Melaxillines A and B, monoterpenoid indole alkaloids from Melodinus axillaris.
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Two new monoterpenoid indole alkaloids, melaxillines A (1) and B (2), together with four known alkaloids (3-6), were isolated from the roots of Melodinus axillaris. The structures were determined by extensive spectroscopic methods, including 1D and 2D-NMR spectroscopy, high resolution mass
A novel monoterpenoid indole alkaloid with anticancer activity from Melodinus khasianus.
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A novel monoterpenoid indole alkaloid with unprecedented 6/5/6/4/6 fused rings, khasuanine A (1), was isolated from the roots of Melodinus khasianus. The structure was determined by extensive analysis of its HR-MS, 1D-, and 2D-NMR spectra. Khasuanine A markedly inhibited the proliferation of PC3
Melokhanines A-J, Bioactive Monoterpenoid Indole Alkaloids with Diverse Skeletons from Melodinus khasianus.
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The new melokhanines A-J (1-10) and 22 known (11-32) alkaloids were isolated from the twigs and leaves of Melodinus khasianus. The new compounds and their absolute configurations were elucidated by extensive analysis of spectroscopic, X-ray diffraction, and computational data. Melokhanine A (1),
Monoterpenoid indole alkaloids from the bark of Melodinus henryi.
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Four new alkaloids, melodinines W1-W4 (1-4), together with twenty one known alkaloids (5-25) were isolated from Melodinus henryi. The structures with absolute configurations were elucidated by extensive MS and NMR spectroscopic methods, as well as the single crystal X-ray
Cytotoxic indole alkaloids from Melodinus tenuicaudatus.
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Four new bisindole alkaloids, melodinines H-K (1-4), a new monomer, melodinine L (5), and 11 known alkaloids were isolated from Melodinus tenuicaudatus. The structures of 1-5 were elucidated by extensive spectroscopic methods, and the known compounds were identified by comparison with data in the
Melotenine A, a cytotoxic monoterpenoid indole alkaloid from Melodinus tenuicaudatus.
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Melotenine A (1), an unprecedented skeleton with a 6/5/5/6/7 pentacyclic rearranged ring system, was isolated from Melodinus tenuicaudatus. The structure was elucidated by means of spectroscopic methods and further confirmed by the single-crystal X-ray diffraction analysis. A possible biogenesis was
Melokhasines A and B, monoterpenoid indole alkaloids from Melodinus axillaris.
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Corrigendum to "A novel monoterpenoid indole alkaloid with anticancer activity from Melodinus khasianus" [Bioorg. Med. Chem. Lett. 27 (2017) 893-896]
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