(1R,2R-Diaminocyclohexane)(2-hydroxy-2-methylbutyrato(2-))-O(sup 1),O(sup 2)platinum(II) 135998-29-7 Platinum, (1,2-cyclohexanediammine-N,N')(2-hydroxy-2-methylbutanoato(2-)-O(sup 1),O(sup 2)-, (SP-4-3)-