申请人:Maikap Golak Chandra
公开号:US20080207935A1
公开(公告)日:2008-08-28
We disclose here processes for making Platinum complex of general formula (I) where in, the conformation of 1,2-diaminocyclohexane is cis, trans-l or trans-d isomer and R
1
and R
2
combinedly make dicarboxylic acid having formulae (II), (III) and (IV), here in, the two carboxylic acid groups are on the same or on vicinal carbon atoms, n is zero or an integer ranging from 1 to 5 and R
3
is either hydrogen or a substituent with electron withdrawing or electron releasing effects exemplified by alkoxy, halo, and nitro groups by reacting a compound of formula M
2
PtX
4
wherein X represents halogen atom such as Cl or Br or thiocyanate with (i) 1,2-diaminocyclohexane (ii) source of silver ion selected from a silver compound containing divalent anion in presence of a corresponding carboxylic acid of formula (II) or (III) or (IV) to get the compound of formula (I), purifying the said compound by treating with alkali metal iodide and isolating the title compound by any conventional methods. The preparation of the said compound involves, for the first time, the intermediate formation of cis-Diiodo-trans-l-1,2-diaminocyclohexane platinum(II) and biscarboylato-trans-l-1,2-diaminocyclohexane platinum(II).
我们在此披露制备一般式(I)的铂配合物的过程,其中1,2-二氨基环己烷的构象为顺式、反式-l或反式-d异构体,R1和R2组合成具有式(II)、(III)和(IV)的二羧酸,其中,两个羧酸基团在同一碳原子上或在邻位碳原子上,n为零或范围为1至5的整数,R3为氢或具有电子吸引或电子释放效应的取代基,例如烷氧基、卤素和硝基基团,通过将具有式M2PtX4的化合物与(i)1,2-二氨基环己烷(ii)银离子来源的银化合物和相应的式(II)或(III)或(IV)的羧酸在存在下进行反应,以获得式(I)的化合物,通过用碱金属碘化物处理所述化合物来纯化所述化合物,并通过任何传统方法分离所述化合物。所述化合物的制备首次涉及顺式-二碘-反式-l-1,2-二氨基环己烷铂(II)和双羧酸酯-反式-l-1,2-二氨基环己烷铂(II)的中间体形成。