申请人:Sunkyong Industries, Ltd.
公开号:US05395947A1
公开(公告)日:1995-03-07
Disclosed herein are novel platinum(II) complexes having a potent anti-tumor activity which are represented by the formula (1), ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, are a hydrogen atom or a C.sub.1-4 alkyl group, respectively, or jointly form a cycloalkane group together with the carbon atom attached thereto; two Xs jointly form a group represented by formula (a) or (b) wherein, R.sub.3 is a hydrogen atom or a methyl group; R.sub.4 and R.sub.5, which may be the same or different, are a hydrogen atom or a C.sub.1-4 alkyl group, respectively, or jointly form a cyclobutane together with the carbon thereto; and the absolute configurations at the respective chiral centers in the 4,5-bis(aminomethyl)-1,3-dioxolane moiety are (4R,5R) or (4S,5S); processes for the preparing the same; and their use for treating animal or human cancer. Further, disclosed herein are novel intermediates useful for the preparation of the platinum(II) complexes and processes for preparing said intermediates.
本文披露了具有强效抗肿瘤活性的新型铂(II)配合物,其化学式为(1),其中R.sub.1和R.sub.2,可以相同也可以不同,分别为氢原子或C.sub.1-4烷基基团,或者与连接的碳原子共同形成环烷基基团;两个X共同形成由化学式(a)或(b)表示的基团,其中,R.sub.3为氢原子或甲基基团;R.sub.4和R.sub.5,可以相同也可以不同,分别为氢原子或C.sub.1-4烷基基团,或者与碳原子共同形成环丁烷基团;以及4,5-双(氨甲基)-1,3-二氧杂环戊烷基团中各立体中心的绝对构型为(4R,5R)或(4S,5S);制备这些配合物的方法;以及它们用于治疗动物或人类癌症的用途。此外,本文还披露了用于制备铂(II)配合物的新型中间体以及制备这些中间体的方法。