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International Journal of Medicinal Mushrooms
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ISSN Imprimer: 1521-9437
ISSN En ligne: 1940-4344

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International Journal of Medicinal Mushrooms

DOI: 10.1615/IntJMedMushr.v4.i2.10
8 pages

Triterpenoids, Steroids, and a New Sesquiterpen from Inonotus obliquus (Pers.: Fr.) Pilat

Shin Yusoo
Laboratory of Forest Chemistry, Division of Environmental Resources, Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, Japan
Tamai Yutaka
Laboratory of Forest Chemistry, Division of Environmental Resources, Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, Japan
Terazawa Minoru
Laboratory of Forest Chemistry, Division of Environmental Resources, Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, Japan

RÉSUMÉ

Six triterpenes including three new from extracts of sclerotium of Inonotus obliquus and four compounds from extracts of cultured mycelia have been isolated. They were lanosterol (1), inotodiol (2), trametenolic acid (3), 3b-hydroxy-8,24-dien-lanosta-21,23-lactone (4), 21,24-cyclopentalanosta-3b,21,25-triol-8-ene (5), 3b,22,25-trihydroxy-lanosta-8-ene (6) from the sclerotium and lanosterol (1), ergosterol (7), ergosterol peroxide (8), glucositol (9), 3b,22-dihydroxy-lanosta-7,9(11),24-triene (10), and 5-(2ў-etene-6ў,6ў-dimethyl-cyclohexa)- 3-methyl-pentanol (11) from the cultured mycelia. The biogenetic relationship of those compounds is discussed in detail.


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