The present invention describes cyclopropylindole cytotoxic prodrugs of formulas (I), (II) and (III) as shown in the specification. The present invention is also directed to a method for the site-specific treatment of neoplastic diseases in a mammal which method includes the following steps: (i) administering to an afflicted mammal an effective amount of a targeting agent- enzyme donor peptide conjugate wherein the targeting agent is selected from the group of antibodies, monoclonal antibodies, adhesion molecules and tumor cell surface binding ligands; (ii) administering to the afflicted mammal an effective amount of an enzyme acceptor dimer thereby forming active enzymatic sites at a tumor cell surface; and (iii) administering to the afflicted mammal a therapeutically effective amount of an enzyme-activateable, cytotoxic pro-drug thereby releasing the cytotoxic drug at the tumor site.
本发明描述了式(I)、(II)和(III)的环丙基
吲哚细胞毒前药,如说明书所示。本发明还涉及一种针对哺乳动物的肿瘤疾病的位点特异性治疗方法,该方法包括以下步骤:(i)向患病的哺乳动物施用有效量的靶向剂-酶给体肽共轭物,其中靶向剂选自
抗体、单克隆
抗体、粘附分子和肿瘤细胞表面结合
配体的组;(ii)向患病的哺乳动物施用有效量的酶受体二聚体,从而在肿瘤细胞表面形成活性酶位点;(iii)向患病的哺乳动物施用治疗有效量的酶活化、细胞毒前药,从而在肿瘤部位释放细胞毒药物。