Browsing by Author "Brodie, Peggy J."

Now showing 1 - 4 of 4
  • Antimalarial 5,6-Dihydro-alpha-pyrones from Cryptocarya rigidifolia: Related Bicyclic Tetrahydro-alpha-Pyrones Are Artifacts
    Liu, Yixi; Rakotondraibe, L. Harinantenaina; Brodie, Peggy J.; Wiley, Jessica D.; Cassera, Maria B.; Miller, James S.; Ratovoson, F.; Rakotobe, Etienne; Rasamison, Vincent E.; Kingston, David G. I. (American Chemical Society, 2015-06-01)
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    Antiproliferative Compounds from Cleistanthus boivinianus from the Madagascar Dry Forest
    Liu, Yixi; Young, Kelly; Rakotondraibe, L. Harinantenaina; Brodie, Peggy J.; Wiley, Jessica D.; Cassera, Maria B.; Callmander, Martin W.; Rakotondrajaona, R.; Rakotobe, Etienne; Rasamison, Vincent E.; TenDyke, Karen; Shen, Yongchun; Kingston, David G. I. (American Chemical Society, 2015-07-01)
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    Antiproliferative triterpenoid saponins from Leptaulus citroides Baill. from the Madagascar rain forest
    Su, Qingxi; Brodie, Peggy J.; Liu, Yixi; Miller, James S.; Andrianjafy, Naina M.; Antsiferana, Rabodo; Rasamison, Vincent E.; Kingston, David G. I. (Springer, 2016)
    Bioassay-guided fractionation of EtOH extracts obtained from the roots and wood of the Madagascan plant Leptaulus citroides Baill. (Cardiopteridaceae) led to the isolation of ethyl esters of three new triterpenoid saponins (1–3) and the known sesquiterpenoid cinnamosmolide (4). The structures of 1–3 were elucidated by extensive 1D and 2D NMR experiments and mass spectrometry. Compounds 1, 2, and 4 showed moderate cytotoxicity against the A2780 human ovarian cancer cell line with IC50 values of 2.8, 10.2 and 2.0 lM, respectively.
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    Nitrogen-Containing Dimeric nor-Multiflorane Triterpene from a Turraea sp.
    Rasamison, Vincent E.; Rakotondraibe, L. Harinantenaina; Slebodnick, Carla; Brodie, Peggy J.; Ratsimbason, Michael; TenDyke, Karen; Shen, Yongchun; Randrianjanaka, Lucien M.; Kingston, David G. I. (American Chemical Society, 2014-05-16)
    The new triterpene turranoic acid (1) and thenew N-containing nor-triterpene turraenine (2), along with triptocallic acid B (3) and esculentoic acid (4) were isolated from leaves of a Turraea sp. Compounds 1-3 showed weak to moderate in vitro antiplasmodial activity against the chloroquine-resistant Plasmodium falciparum strain FCM29. Compound 1 also displayed weak cytotoxic activity against the non-small lung cancer cell line H522-T1 with an IC50 value of 16.4 μM.