Browsing by Author "Mungkornasawakul Pitchaya"

UTSePress Research/Manakin Repository

Search UTSePress Research

Browse

My Account

Browsing by Author "Mungkornasawakul Pitchaya"

Sort by: Order: Results:

  • Alkaloids from the Roots of Stemona aphylla 
    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 ...
  • Confirmation of the structure of oxystemokerrin by single crystal x-ray structural analysis and a proposed biosynthesis 
    Mungkornasawakul Pitchaya; Matthews Hayden; Ung Alison; Pyne Stephen; Jatisatienr Araya; Lie Wilford; Skelton Brian; White Allan (Asian Coordinating Group for Chemistry, 2005)
  • Phytochemical and Larvicidal Studies on Stemona curtisii: Structure of a New Pyrido[1,2-a]azepine Stemona Alkaloid 
    Mungkornasawakul Pitchaya; Pyne Stephen; Jatisatienr Araya; Supyen Damrat; Jatisatienr Chaiwat; Lie Wilford; Ung Alison; Skelton Brian; White Allan (American Chemical Society, 2004)
    A new pentacyclic Stemona alkaloid, stemocurtisinol (3), with a pyrido[1,2-a]azepine A,B-ring system, and the known pyrrolo[1,2-a]azepine alkaloid oxyprotostemonine (4) have been isolated from a root extract of S. curtisii. ...
  • Phytochemical Investigations of Stemona curtisii and Synthetic Studies on Stemocurtisine 
    Chaiyong Sukanda; Jatisatienr Araya; Mungkornasawakul Pitchaya; Sastraruji Thanapat; Pyne S.; 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 ...
  • Phytochemical Studies on Stemona burkillii Prain: Two New Dihydrostemofoline Alkaloids 
    Mungkornasawakul Pitchaya; Pyne Stephen; Jatisatienr Araya; Lie Wilford; Ung Alison; Issakul Kritchaya; Sawatwanich Auntika; Supyen Damrat; Jatisatienr Chaiwat (American Chemical Society, 2004)
    Two new dihydrostemofoline alkaloids, 11(S),12(R)-dihydrostemofoline (3) and stemoburkilline (4), along with stemofoline (1) and 2`-hydroxystemofoline (2) have been isolated from a root extract of Stemona burkillii Prain. ...
  • The pyrido[1,2-a]azepine Stemona alkaloids 
    Pyne Stephen; Ung Alison; Jatisatienr Araya; Mungkornasawakul Pitchaya (Maejo University, 2007)
    This paper reviews the isolation, structure elucidation, proposed biosynthesis and biological activities of the small, but increasing, number of pyrido[1,2-a]azepine Stemona alkaloids.
  • Stemocurtisine, the First Pyrido[1,2-a]azapine Stemona Alkaloid 
    Mungkornasawakul Pitchaya; Pyne Stephen; Jatisatienr Araya; Supyen Damrat; Lie Wilford; Ung Alison; Skelton Brian; White Allan (American Chemical Society, 2003)
    A new pentacyclic stemona alkaloid, stemocurtisine (2), with a novel pyrido[1,2-a]azapine A,B-ring system, has been isolated from a root extract of Stemona curtisii. The structure and relative stereochemistry was determined ...
  • Stemofoline ethyl acetate solvate 
    Mungkornasawakul Pitchaya; Pyne Stephen; Ung Alison; Jatisatienr Araya; Willis Anne-Marie (Wiley-Blackwell Publishing, Inc, 2009)
    Crystals of the title compound, C22H29NO5 center dot C4H8O2, {[systematic name: (2R,3R,5R,5aS,6R,8aR,9S)-(5Z)-5-[3-butyl-tetrahydro-6-methyl-2,5-methano-4,3,8a-[1]propanyl[3]ylidenefuro[3,2-f][1,4]oxazepin-7(5H)-ylidene] ...
  • Structural Revision of Stemoburkilline from an E-Alkene to a Z-Alkene 
    Sastraruji Kwankamol; Pyne Stephen; Ung Alison; Mungkornasawakul Pitchaya; Lie Wilford; Jatisatienr Araya (American Chemical Society, 2009)
    Semisynthesis studies starting from (11Z)-1?,2?-didehydrostemofoline (4) indicated that the known Stemona alkaloid stemoburkilline is the Z-isomer and not the E-isomer as initially reported. The semisynthesis involved ...