Browsing 03 Chemical Sciences by Author "Sastraruji, Thanapat"

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Browsing 03 Chemical Sciences by Author "Sastraruji, Thanapat"

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  • Mungkornasawakul, Pitchaya; Chaiyong, Sukanda; Sastraruji, Thanapat; Jatisatienr, Araya; Jatisatienr, Chaiwat; Pyne, Stephen; Ung, Alison; Korth, John; Lie, Wilford (American Chemical Society, 2009)
    Three known compounds, stemofoline (1), (2'S)-hydroxystemofoline (2), and (11Z)-1',2'-didehydrostemofoline (3), along with two new alkaloids, stemaphylline (4) and stemaphylline-N-oxide (5), have been isolated from a root ...
  • Sastraruji, Thanapat; Pyne, Stephen; Ung, Alison (Pergamon, 2012)
    Oxidation of (11Z)-1',2'-didehydrostemofoline with DIB/TBHP/Mg(OAc)(2)center dot 4H(2)O resulted in oxidative cleavage of the C-11-C-12 double bond instead of the desired allylic oxidation of the 1-butenyl side chain. ...
  • Chaiyong, Sukanda; Jatisatienr, Araya; Mungkornasawakul, Pitchaya; Sastraruji, Thanapat; Pyne, Stephen; Ung, Alison; Urathamakul, Thitima; Lie, Wilford (American Chemical Society, 2010)
    The isolation of two new Stemona alkaloids, 1-hydroxyprotostemonine and stemocurtisine N-oxide, and a new benzofuran, stemofuran L, from the root extracts of Stemona curtisii is reported. The major known alkaloids from ...
  • Sastraruji, Thanapat; Jatisatienr, Araya; Issakul, Kritchaya; Pyne, Stephen; Ung, Alison; Lie, Wilford; Williams, Morwenna (Natural Product Inc., 2006)
    Six new stemofoline alkaloids, (2`R)-hydroxystemofoline (5), (3`R)-stemofolenol (6), (3`S)-stemofolenol (7), 1`,2`-didehydrostemofoline-N-oxide (8), the first C19 stemofoline alkaloid, methylstemofoline (9), and the first ...
  • Baird, Morwenna; Pyne, Stephen; Ung, Alison; Lie, Wilford; Sastraruji, Thanapat; Jatisatienr, Araya; Jatisatienr, Chaiwat; Dheeranupattana, Srisulak; Lowlam, Jaturong; Boonchalermkit, Sukanya (American Chemical Society, 2009)
    The semisynthesis of the Stemona alkaloids (3?R)-stemofolenol (1), (3?S)-stemofolenol (2), methylstemofoline (3), and (3?S)-hydroxystemofoline (5) and the unnatural analogues (11E)-methylstemofoline (15) and 3?R-hydroxystemofoline ...
  • Hemtasin, Chulida; Ung, Alison; Kanokmedhakul, Somdej; Kanokmedhakul, Kwanjai; Bishop, Roger; Sastraruji, Thanapat; Bishop, David (Springer, 2012)
    Alkaloid-like compounds containing a benzo[c]azepine core structure were successfully prepared in three steps from H-dibenzo[a,d]cyclohepten-5-ol via the bridging Ritter reaction. Biological studies of these compounds ...
  • Sastraruji, Kwankamol; Sastraruji, Thanapat; Ung, Alison; Griffith, Renate; Jatisatienr, Araya; Pyne, Stephen (Elsevier Inc, 2012)
    Thirty-two new stemofoline analogues were prepared from didehydrostemofoline for studies as AChE inhibitors. C-3 Side-chain modified amino, carbamate, triazole and oxazole stemofoline derivatives were prepared. In general ...