Abstract: Novel platinum(II)-steroid complexes are now provided, which exhibit antitumor activities as shown by tests on mouse leukemia, L-1210 cells in mice. These novel platinum(II)-steroid complexes contain a 1,2-cyclohexanediamine, a 2-(aminomethyl)cyclohexylamine, an ethylenediamine or NH.sub.3 --groups as a ligand or ligands.

Abstract: New platinum (IV) complexes are now provided, which exhibit antitumor activity as shown by the tests on mouse leukemia, L-1210 cell in mice. These new platinum (IV) complexes contain 1,2-cyclohexanediamine or 2-(aminomethyl)cyclohexyl-amine as a ligand.

Abstract: New platinum(II)-flavin complexes are now provided, which exhibit antitumor activities as shown by tests on mouse leukemia, L-1210 cells in mice. These novel platinum(II)-flavin complexes contain a 1,2-cyclohexanediamine, a 2-(aminomethyl)cyclohexylamine, an ethylenediamine or NH.sub.3 -- groups as a ligand or ligands.

Abstract: 1,2-Diaminocyclohexane platinum (II) complexes of the general formula: ##STR1## wherein R.sub.1 and R.sub.2, are selected from nitrate and various organic carboxylate groups, with the proviso that R.sub.1 and R.sub.2 are not both nitrate, and the configuration of the 1,2-diaminocyclohexane being selected from cis, trans-d and trans-1, have been found to exhibit potent cytostatic activity.They may be made by reacting a starting material, in which R.sub.1 and R.sub.2 are nitrate, with the appropriate carboxylic acid or salt thereof.

Abstract: Disclosed herein are novel complex compounds of platinum showing an antitumor activity, represented by the formula(I): ##STR1## wherein one of R.sup.1 and R.sup.2 represents a group selected from the group consisting of (1) glucuronato groups whose hydroxyl groups may be acylated, (2) gluconato groups whose hydroxyl groups may be acylated, (3) pyruvato group and (4) nitrato group, and the other of R.sup.1 and R.sup.2 represents a group selected from the group consisting of (i) glucuronato groups whose hydroxyl groups may be acylated, (ii) gluconato groups whose hydroxyl groups may be acylated, (iii) pyruvato group and (iv) halogen atoms, or R.sup.1 and R.sup.

Abstract: The invention relates to compounds that are complexes of diaminocyclohexane platinum glucuronic acid halide and the use of these compounds as anti-tumor agents for lower animals.

Abstract: Platinum(II) complexes comprising platinum(II), a diamine, a ligand of D-gluconic acid and an inorganic or organic anion or ligand, and effecting superior antineoplastic activity at a smaller dose.

Abstract: Cis-platinum (II) complexes wherein platinum (II) coordinates 1,2-diamino-cyclohexane (cis-, trans-l-or trans-d-) are disclosed. The complexes exhibit anti-tumor activity.

Abstract: Cis-platinum (II) complexes wherein platinum (II) coordinates 1,2-diamino-cyclohexane (cis-, trans-l- or trans-d-) are disclosed. The complexes exhibit anti-tumor activity.