| 摘要 |
The invention concerns compounds of formula (1) wherein R stands for methyl or ethyl and stands for prophylene, butylene or pentylene in the case of ring shape formed by bonding two R's; A and A' stand for ammonia, methylamine, isoprophylamine, cycloprophylamine, cyclobutylamine, cyclopentylamine and cyclohexylamine and trans-1,2-diaminocyclohexane, 2,2-dimethyl-1,3-prophanediamine,1,1-cyclobutanediamine, ethylenediamine, 1,1-cyclopentandimethaneamine, 1,1-cyclohexanediamine and stands for terahydro-4H-piran-4,4-dimethaneamine in the case of a chelate form. A platinum chelate compound is produced by reacting a alkali metal and a platinum nitrate derivative or a platinum nitrate derivative of which mole ratio is 1 : 1 by using water as a solvent , followed by condensing and precipitating.
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