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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/24865

    Title: Chemical Constituents of Two Liversorts Metacalypogeia Alternifolia and Chandonanthus Hirtellus
    Authors: 施宏興;吳嘉麗;頻郁峻;Paul,Claudia;Konig,Wilfried A.
    Contributors: 淡江大學化學學系
    Keywords: Metacalypogeia alternifolia;Metacalypogeia cordifolia;Calypogeiaceae;Chandonanthus hirtellus;Lophoziaceae;Liverwort;Metacalypogin;8;9-Dihydro-10-methoxy-2;2;7;7- tetramethyl-2H;7H-benzo[1;2-b:5;4-b兡dipyran;Dihydrodichromen....
    Date: 2002-08
    Issue Date: 2013-07-29 13:42:04 (UTC+8)
    Publisher: 臺北市:中國化學學會
    Abstract: A novel linear dihydrodichromene derivative, metacalypogin, was identified from the Taiwanese liverwort Metacalypogeia alternifolia. Together with data from M. cordifolia, the chemical marker of the genus Metacalypogeia is obvious chroman derivatives, which is far different from that of Calypogeia, the other genus in the same family. In addition, two isomeric diterpenoids of cembrane-type were identified from the Chinese liverwort Chandonanthus hirtellus. The relative stereostructures of the latter two isomers were proved by X-ray crystallography. Both compounds were unstable in chloroform solution and further oxidized to the corresponding peroxy hemiacetal derivatives.
    Relation: Journal of the Chinese Chemical Society=中國化學會會誌 49(4), pp.593-598
    Appears in Collections:[化學學系暨研究所] 期刊論文

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