Abstract
A series of aminoethylpyrrolidine-platinum complexes were synthesized and partially characterized for chemical structure. The leaving groups in this series of complexes were varied in an attempt to identify cytotoxic, water-soluble aminoethylpyrrolidine-platinum complexes. The cytotoxic activity was tested in vitro against L1210 cells sensitive to cis-diamminedichloroplatinum(II) (L1210/0), L1210 cells resistant to cis-diamminedichloroplatinum(II) (L1210/DDP), and L1210 cells resistant to 1,2-diaminocyclohexane platinum (L1210/DACH). The complexes were also tested for in vivo antitumor activity against L1210/0 cells injected i.p. The results of these studies indicate that the aminoethylpyrrolidine-platinum complexes have moderate antitumor activity but are cross-resistant in L1210/DDP cells. The degree of antitumor activity was dependent on the characteristic leaving group of a given complex.
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