Study on the Secondary Metabolites of Endophytic Fungus Irpex sp.from Euphorbia neriifolia L.
Through analytical methods such as silica gel column chromatography and semi-preparative high performance liquid chromatography,the liquid fermentation products of the endophytic fungus Irpex sp.from Euphorbia neriifolia L.were extracted and separated,yielding nine compounds.These were identified as Irpexlacte C(1),Irpexlacte D(2),5-(4-Oxopentyl)furan-2-carbaldehyde(3),22-tetraen-3-one(4),Irlactin L(5),Irlactin K(6),Irlactin I(7),Davotremulane B(8),and(+)-(1R,6S,7S)-Tremul-2-ene-12(11)-lactone(9),among which three were furan derivatives,five were sesquiterpenes,and one was a sterol compound.Compounds 3,4,8,and 9 were isolated from the genus Irpex sp.for the first time.
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