The bioactivity-guided fractionation of chloroform extracts of the fruit bodies of Hypsizigus marmoreus led to our isolation of $(22E,24R)-ergosta-7,22-diene-3{eta},5{alpha},6{eta}-triol$ (1), $ergosterol-3-O-{eta}-D-glucopyranoside$ (2), $5{alpha},8{alpha}-epidioxyergosta-6,22-dien-3{eta}-ol$ (3), hypsiziprenol $A_9$ (4), hypsiziprenol $AA_8$ (5), hypsiziprenol $AA_9$ (6) and hypsiziprenol $BA_{10}$ (7). Among these seven isolates, compound 2 was identified for the first time from this plant. All compounds (1-7) exhibited moderate cytotoxicity towards cultured human colon carcinoma (HT-29), human breast carcinoma (MCF-7) and human hepatoblastoma (HepG-2) cell lines.