| 摘要 |
<p>Disclosed herein are novel platinum(II) complexe having a potent anti-tumor activity which are represented by formula (1), wherein R1 and R2, which may be the same or different, are a hydrogen atom or a C1-4 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, R3 is a hydrogen atom or a methyl group; R4 and R5, which may be the same or different, are a hydrogen atom or a C1-4 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 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.</p> |
