as
烷基磺酸盐.Alkyl sulfonate
抗代谢药物.Antimetabolic Agents
叶酸类似物.Folic acid analogues
嘧啶类似物.Pyrimidine analogues
嘌呤类似物.Purine analogues
植物生物碱和其它天然产物.Plant alkaloids and other natural produc