Oxaliplatin,(trans-R, R-cyclohexane-1, 2-diamine) oxalatoplatinum (II), has recently been approved for combination chemotherapy of metastatic colorectal cancer. Oxaliplatin is significantly more active than its trans-S, S isomer and the mixture of both enantiomers. New oxaliplatin analogues,(SP-4-3)-(4-methyl-trans-cyclohexane-1, 2-diamine) oxalatoplatinum (II) and (SP-4-3)-(4-ethyl-trans-cyclohexane-1, 2-diamine) oxalatoplatinum (II), have been ...