artabotrys/alkaloid

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The alkaloids of Artabotrys uncinatus.

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A novel type of alpha,beta-butenolide alkaloid, uncinine (1), two novel oxoaporphines, artabonatine C (2) and artabonatine D (3), a new oxazoloaporphine, artabonatine E (4), and a new 7,7'-bisdehydroaporphine, artabonatine F (5), along with 25 known alkaloids, were isolated from Artabotrys

[Studies on the alkaloids from stem of Artabotrys hainanensis].

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OBJECTIVE To investigate the alkaloids from the stem of Artabotrys hainanensis. METHODS Compounds in plant extracts were separated by silica gel and sephadex LH-20 column chromatography. Chemical structures were elucidated by chemical and spectral analyses including UV, 1H-NMR, 13C-NMR, ESIMS and

Two new alkaloids from artabotrys uncinatus

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A novel oxazoloaporphine, artabonatine A (1), and a new 7-hydroxyaporphine, artabonatine B (2), have been isolated and characterized from the fresh unripe fruits of Artabotrys uncinatus, along with five known compounds. Structure elucidation of 1 and 2 was based on UV, IR, NMR, and MS analyses.

Antibacterial alkaloids from Artabotrys crassifolius Hook.f. & Thomson.

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Chloroform extract of bark of Artabotrys crassifolius Hook.f. & Thomson exhibited antibacterial activities against both American Type Culture Collection and clinical bacterial strains in vitro with zones of inhibition ranging from 7 to 14 mm. Further analysis of this extract yielded artabotrine,

[Norstephalagine and atherospermidine: two smooth muscle relaxant aporphines from Artabotrys maingayi].

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Nine isoquinoline alkaloids have been isolated from the bark of Artabotrys maingayi: four noraporphines (norstephalagine, 3-hydroxynornuciferine, anonaine, and nornuciferine), one 7-hydroxyaporphine (ushinsunine), three oxoaporphines (atherospermidine, liriodenine, and lysicamine), and one

Cytotoxic Aporphines from Artabotrys crassifolius.

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Artabotrys crassifolius Hook. f. & Thomson is a medicinal plant used in Malaysia. The cytotoxic effects of the hexane, chloroform and ethanol extracts of the leaves and bark were examined in vitro against MCF-7, MDA-468 and HCT-116 cells. The chloroform extract of the bark inhibited the growth of

Cytotoxic and cytostatic effects of four Annonaceae plants on human cancer cell lines.

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Several species of the Annonaceae plants have been used as complementary medicine for cancer-associated illnesses in some ethnic groups of northern Thailand. This study investigated the cytotoxic and cytostatic activity of methanolic extracts derived from the stems of these plants, including Uvaria

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