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Sterols from the fungus Lactarium volemus
1Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, PR China. jmyue@mail.shcnc.ac.cn
Phytochemistry
|April 28, 2001
Abstract:
Seven ergostane-type sterols and two mono-glucosides were isolated from the ethyl acetate soluble fraction of Lactarium rolemus. Three are previously unknown, i.e. 3-O-beta-D-glucopyranosyl-22E,24R-5alpha,8alpha-epidioxyergosta-6,22-diene, 3-O-beta-D-glucopyranosyl-22E,24R-5beta,8beta-epidioxyergosta-6,22-diene and 22E,24R-ergosta-7,22-diene-3beta,5alpha,6beta,9alpha-tetraol. The structural elucidation of these compounds was mainly achieved by spectroscopic methods.