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Fungal metabolites 10. New chromenes from Lactarius fuliginosus fries and Lactarius picinus fries

✍ Scribed by E. Conca; M. De Bernardi; G. Fronza; M.A. Girometta; G. Mellerio; G. Vidari; P. Vita-Finzi

Book ID
104235247
Publisher
Elsevier Science
Year
1981
Tongue
French
Weight
290 KB
Volume
22
Category
Article
ISSN
0040-4039

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✦ Synopsis

6-Methoxy-2,2-dimethylchromene (I) and five new chromenes (II-VI) were isolated from Lactarius fuliginosus and L.picinus (Basidiomycetes). These unusual structures have been elucidated by spectroscopic methods.2,2-Dimethylchromene (VII) was identified by GC-MS in L. picinus. We report here for the first time the finding of chromenes in Basidiomycetes. As part of our program to isolate and characterize metabolites of Basidiomycetes, and particularly of Russulaceae, we examined the acetone and ethanolic extracts of two species belonging both, for the similarity of their morphological characters, to the same section ("fuliginosi") of the genus Lactarius: Lactarius fuliginosus Fries and Lactarius picinus Fries.' The TLC analysis of the extracts, compared with that of the extracts of previously studied Lactarius species (i.e. L. scrobiculatus 2-5 and L. uvidus6) showed a quite different pattern

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