Synthesis and characterization of ionic Ru(III) complexes containing dimethylsulfoxide and dinitrogen heterocyclic ligands
摘要:
Several new Ru(III) DMSO compounds including [PPh4]trans-[Ru(DMSO)(2)Cl-4], [PPh4]trans-[Ru(DMSO)(pyrazine)Cl-4] (2), [PPh4]trans-[Ru(DMSO)(4,4'-bipyridine)Cl-4] and [PPh4]trans-[Ru(DMSO)(pyrimidine)Cl-4] were reported and characterized. The crystal structure of 2 and its Na+ analogue were determined by X-ray diffraction methods. The PPh4+ complex 2 is a discrete ionic compound, while the compound [Na]trans-[Ru(DMSO)(pyrazine)Cl-4]center dot DMSO (3) crystallized with a molecule of DMSO. The environment around the Na atom is a distorted octahedron with short contacts with three chloro ligands, two O atoms from the bonded and unbonded DMSO molecules, and the unbonded N atom of the pyrazine ligand. The Na atoms form bridges between the complexed anions in 3 resulting in the formation of infinite chains or ribbons parallel to the b axis. The chains are held together by van der Waals interactions. (c) 2007 Elsevier Ltd. All rights reserved.
Synthesis, Characterization, and in Vitro Evaluation of a Potentially Selective Anticancer, Mixed-Metal [Ruthenium(III)−Platinum(II)] Trinuclear Complex
摘要:
A new type of mixed-metal trinuclear complex containing platinum(II) and ruthenium(III) fragments that resemble both cisplatin and NAMI-A has been synthesized and characterized by IR, H-1 NMR, elemental analysis, and X-ray crystallography. The water-soluble compound Na-2{trans,cis,trans-[(RuCl4)-Cl-III(DMSO-S)(mu-pyz)](2)(PtCl2)-Cl-II} (AH-197, pyz = pyrazine) was assessed for its effects on DNA mobility and toxicity against human cancer cell lines. When compared to cisplatin and KP-1019 (which structurally resembles NAMI-A), IC50 results showed that AH-197 had an intermediate toxicity. When this data was coupled with a subsequent COMPARE evaluation (standard COMPARE queries resulted in insignificant correlation coefficients (<0.70) while very low COMPARE correlation coefficients were found in the matrix queries as well), AH-197 yielded a correlation coefficient of 0.19 when compared to cisplatin and 0.25 when compared to KP1019 indicating that AH-197 has a unique behavior.
Synthesis and characterization of ionic Ru(III) complexes containing dimethylsulfoxide and dinitrogen heterocyclic ligands
作者:Craig M. Anderson、Amnon Herman、Fernande D. Rochon
DOI:10.1016/j.poly.2007.03.041
日期:2007.8
Several new Ru(III) DMSO compounds including [PPh4]trans-[Ru(DMSO)(2)Cl-4], [PPh4]trans-[Ru(DMSO)(pyrazine)Cl-4] (2), [PPh4]trans-[Ru(DMSO)(4,4'-bipyridine)Cl-4] and [PPh4]trans-[Ru(DMSO)(pyrimidine)Cl-4] were reported and characterized. The crystal structure of 2 and its Na+ analogue were determined by X-ray diffraction methods. The PPh4+ complex 2 is a discrete ionic compound, while the compound [Na]trans-[Ru(DMSO)(pyrazine)Cl-4]center dot DMSO (3) crystallized with a molecule of DMSO. The environment around the Na atom is a distorted octahedron with short contacts with three chloro ligands, two O atoms from the bonded and unbonded DMSO molecules, and the unbonded N atom of the pyrazine ligand. The Na atoms form bridges between the complexed anions in 3 resulting in the formation of infinite chains or ribbons parallel to the b axis. The chains are held together by van der Waals interactions. (c) 2007 Elsevier Ltd. All rights reserved.
Synthesis, Characterization, and in Vitro Evaluation of a Potentially Selective Anticancer, Mixed-Metal [Ruthenium(III)−Platinum(II)] Trinuclear Complex
作者:Amnon Herman、Joseph M. Tanski、Michael F. Tibbetts、Craig M. Anderson
DOI:10.1021/ic062419h
日期:2008.1.1
A new type of mixed-metal trinuclear complex containing platinum(II) and ruthenium(III) fragments that resemble both cisplatin and NAMI-A has been synthesized and characterized by IR, H-1 NMR, elemental analysis, and X-ray crystallography. The water-soluble compound Na-2trans,cis,trans-[(RuCl4)-Cl-III(DMSO-S)(mu-pyz)](2)(PtCl2)-Cl-II} (AH-197, pyz = pyrazine) was assessed for its effects on DNA mobility and toxicity against human cancer cell lines. When compared to cisplatin and KP-1019 (which structurally resembles NAMI-A), IC50 results showed that AH-197 had an intermediate toxicity. When this data was coupled with a subsequent COMPARE evaluation (standard COMPARE queries resulted in insignificant correlation coefficients (<0.70) while very low COMPARE correlation coefficients were found in the matrix queries as well), AH-197 yielded a correlation coefficient of 0.19 when compared to cisplatin and 0.25 when compared to KP1019 indicating that AH-197 has a unique behavior.