A stilbene derivative of the following general formula (I) or a pharmaceutically acceptable acid addition salt thereof have low toxicity, but are water soluble and effective as carcinostatics: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3, which may be the same or different, each represent an alkyl group having 1 to 3 carbon atoms; X represents a hydrogen atom or a nitrile group; Y represents an alkyloxy group having 1 to 3 carbon atoms, an alkyl group having 1 to 6 carbon atoms or a halogen atom.
以下一般式(I)的一种stilbene衍
生物或其药学上可接受的酸盐具有低毒性,但
水溶性强,且作为抗癌药物具有有效性:其中R.sup.1、R.sup.2和R.sup.3,可以相同也可以不同,每个代表具有1至3个碳原子的烷基基团;X代表氢原子或腈基团;Y代表具有1至3个碳原子的烷氧基团,具有1至6个碳原子的烷基基团或卤素原子。