New application this Hair Ming Department of this Hair Ming Department Off Yu mono- Seed compounds are obtained 4- Hydroxyalkyl bases -2 by Antrodia camphorata extract Zhong Fen From Pureization, 3- dimethoxy -6- methyl -5 (3,7,11- trimethyls -2,6,12 carbon triolefins of 10-) -2- Ring hexenones (4-hydroxy-2,3-dimethoxy-6-methy-5 (3,7,11-trimethyl-dodeca-2,6,10-trienyl)-cyclohex-2-enone), The Ring hexenes ketone compound can Should inhibit the life Long of stomach cancer Swollen tumor Fine born of the same parents with what, with Time can Should whats inhibit the Medical Drug Group of the raw Long of stomach cancer Swollen tumor Fine born of the same parents in object.本發明係關於一種化合物之新用途,本發明係由牛樟芝萃取物中分離純化而得4-羥基-2,3-二甲氧基-6-甲基-5(3,7,11-三甲基-2,6,10-十二碳三烯)-2-環己烯酮(4-hydroxy-2,3-dimethoxy-6-methy-5(3,7,11-trimethyl-dodeca-2,6,10-trienyl)-cyclohex-2-enone),該環己烯酮化合物可應用於抑制胃癌腫瘤細胞之生長,同時可應用於抑制胃癌腫瘤細胞生長之醫藥組成物中。