Prodrug,which is from the modification of active drug constructure or pharmaceutical dosage form,greatly overcome the defect of chemotherapy agent and open a new way in target tumor treatment.

• 前体药物通过对原药的化学结构或药物剂型给予一定修饰,大大克服了化疗药物的缺点,开辟了一条靶向治疗肿瘤的新途径。