PROCESS FOR THE PREPARATION

摘要

Platinum complexes of formula(IV) are prepared by (A) reacting diamine of formula 2(R-NH)2 [R=H or C1-5 alkyl with tetrachloride platinic acid kalium to form the complex of formula (I) in water, (B) reacting (I) with silver nitrate to form a complex solution of formula (II), and (C) reacting (II) with tricarboxylic acid solution of formula (III) in the presence of hydrophilic base.