Abstract: A fractionation method, pure active compounds and derivatives thereof, compositions including the same and methods of treating cancer including administering such compounds, derivatives, compositions or any combination thereof. A fractionation method of a Cyathus striatus CBS 126585 for obtaining at least one of the pure active ingredients Striatal C, Striatal C? or Striatal D, wherein the fractionation method includes: providing an octadecyl silica gel column; and performing a series of RP-18 preparative chromatography steps using the acetadecyl silica gel column.

Abstract: A new and distinct variety of higher Basidiomycetes mushroom Cyathus striatus HAI-1302, and extracts thereof are provided. These extracts as well as pharmaceutical composition comprising them are capable of inhibiting growth of cancer cells, arresting cancer cell cycle, reducing DNA synthesis in cancer cells and inducing apoptosis in cancer cells, and are thus useful for the treatment of cancer.