Constituents of the fungus Ganoderma lucidum (FR.) Karst. II. Structures of ganoderic acids F, G, and H, lucidenic acids D2 and E2, and related compounds. - Kikuchi,T.; Kanomi,S.; Murai,Y.; Kadota,S.; Tsubono,K.; Ogita,Z.I. (Chem Pharm Bull, 1986)