Chemical Constituents of Culture Broth of Hebeloma westraliense

Volemolide(1),a norsterol with a heptanorergostane skeleton was isolated from the culture broth of Hebeloma westraliense,together with other four known compounds including ergosterol peroxide(2),4-hydroxybenzoic acid(3),4-methoxyphenylacetic acid(4),and 4-hydroxy-benzeneethanol(5).The structures of these compounds were elucidated by spectroscopic methods,and the compound 1 was firstly founded in the Cortinariaceae.