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International Journal of Medicinal Mushrooms
Fator do impacto: 1.423 FI de cinco anos: 1.525 SJR: 0.431 SNIP: 0.716 CiteScore™: 2.6

ISSN Imprimir: 1521-9437
ISSN On-line: 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

RESUMO

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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