PURPOSE: A pharmaceutical composition containing compounds for preventing or treating cancer is provided to ensure strong immunocytes and to prevent cancer.CONSTITUTION: A pharmaceutical composition for preventing or treating cancer contains compound of chemical formula I, pharmaceutically acceptable salt thereof, or hydrate. In chemical formula I, R is C_2H_5 or C_2H_3. The composition is taken by parenteral, topical, oral, rectal, or nasal administration. A method for preparing the compound comprises: a step of reacting 2-methyl butylic acid and actigenin-4-O-glucoside, 3,5,7,9-tetraline or alanine a step of reacting with copper, lutheoline-7-rhamnoglucoside, saponin, pinene, trans-geraniol, linalool, or chlorogenic acid a step of reacting with vitexicarpin or hesperidin and 3-hydroxyformononetin, kaempferol or water a step of reacting with sinigrin and a step of reacting with valine.COPYRIGHT KIPO 2012본 발명은 하기 화학식 I의 화합물, 이의 약학적으로 허용가능한 염 또는 이의 수화물, 이를 유효성분으로 함유하는 암 치료 또는 예방용 약학 조성물, 및 화학식 I의 화합물의 제조방법에 관한 것이다.[화학식 I](식 중, 치환기 R은 C2H5 또는 C2H3임).