Inversion of the Cis Geometry Requirement for Cytotoxicity in Structurally Novel Platinum(II) Complexes Containing the Bidentate N,O-Donor Pyridin-2-yl-acetate
作者:Ulrich Bierbach、Michal Sabat、Nicholas Farrell
DOI:10.1021/ic991259p
日期:2000.5.1
characterized by 1H NMR and IR spectroscopy and elemental analyses. The solid-state structure of 2 was determined: triclinic, P1 (no. 2), with a = 8.170(2) A, b = 9.274(3) A, c = 7.374(2) A, alpha = 108.68(2) degrees, beta = 113.27(2) degrees, gamma = 74.40(2) degrees, V = 479.7(6) A3, Z = 2. The six-membered metallacyclus in 2 adopts a "boat" form, allowing a strainless coordination of platinum. The most promising
[EN] IMPROVEMENTS IN PLATINUM COMPOUNDS PREPARATION BY USE OF TETRABUTYLAMMOUNIUM AMMINETRICHLOROPLATINATE AS INTERMEDIATE<br/>[FR] AMÉLIORATIONS DANS LA PRÉPARATION DE COMPOSÉS À BASE DE PLATINE PAR L'UTILISATION D'AMINOTRICHLOROPLATINATE DE TÉTRABUTYLAMMONIUM COMME INTERMÉDIAIRE
申请人:JOHNSON MATTHEY PLC
公开号:WO2009150448A1
公开(公告)日:2009-12-17
The invention provides a commercially practicable route to X[PtCl 3 (NH 3 )], where X represents an alkali metal ion, comprising the steps of heating a reaction mixture comprising cisplatin in an acidified organic solvent, together with NBu 4 OH, a Pt catalyst and saturated aqueous NaC1 solution to form (NBu 4 )[PtCl 3 (NH 3 )], and reacting that product with an alkali metal salt, to form X[PtCl 3 (NH 3 )] The product may be used in the synthesis of platinum anticancer complexes.
A novel characterization of the structure of `Cossa's salt' Kx(NH4)1−x[PtCl3NH3]·H2O by crystallographic comparison with the stoichiometric compounds K[PtCl3NH3]·H2O and NH4[PtCl3NH3]·H2O
作者:Anneli Oksanen
DOI:10.1016/s0020-1693(96)05532-6
日期:1997.7
present understanding of `Cossa'ssalt' with two crystalline forms in single crystals, which describes the yellow parts of the crystal as the pure compound K[PtCl 3 NH 3 ]·H 2 O and the red parts as K[PtCl 3 NH 3 ] 1− ω [PtCl 5 NH 3 ] ω (0 ω x (NH 4 ) 1− x [PtCl 3 NH 3 ]·H 2 O containing mixed counter ions with different composition of the K + and NH 4 + ions. A sample of the `red' form with x ≈0.25 ( 2