Novel Uses of small molecules, particularly, triterpenoids and ingol diterpenes isolated fromEuphorbia neriifolia, are disclosed herein. The triterpenoids are useful as lead compounds for manufacturing a medicament or a pharmaceutical composition for treating cancer whereas the ingol diterpenes are useful as lead compounds for manufacturing a medicament or a pharmaceutical composition for treating thrombocytopenia.在此揭示某些小分子的新穎用途,特別是單離自金剛纂之三萜類及林醇二萜類化合物(ingol diterpenes)的新穎用途。這些三萜類及林醇二萜類化合物分別是潛在可用來製造能治療癌症及血小板數量低下的醫藥品或藥學組合物的先導化合物。