Skip navigation

Excellent correlation between cathepsin B inhibition and cytotoxicity for a series of palladacycles

Excellent correlation between cathepsin B inhibition and cytotoxicity for a series of palladacycles

Spencer, John, Casini, Angela, Zava, Olivier, Rathnam, Rajendra P., Velhanda, Santosh K., Pfeffer, Michel, Callear, Samantha K., Hursthouse, Michael B. and Dyson, Paul J. (2009) Excellent correlation between cathepsin B inhibition and cytotoxicity for a series of palladacycles. Dalton Transactions (48). pp. 10731-10735. ISSN 1477-9226 (Print), 1477-9234 (Online) (doi:10.1039/b912096c)

Full text not available from this repository.

Abstract

The reaction of the five- or six-membered C,N or C,S-palladacycles [(L)PdCl](2) with PTA (1,3,5-triaza-7-phosphaadamantane) led to the monomeric complexes [(L)Pd(PTA)Cl] 6a, 6b and 7 where LH= N,N-dimethyl-1-phenylmethanamine, benzyl(methyl)sulfane or 1-methyl-5-phenyl-1H-benzo[e][1,4]diazepin-2(3H)-one respectively. Dimeric complexes have also been synthesised: [Pd(2)L(2)(mu-dppe)Cl(2)], where LH = 1-methyl-5-phenyl-1H-benzo[e][1,4]diazepin-2(3H)-one (1a), (R)- or (S)-3-isopropyl-1-methyl-5-phenyl-1H-benzo[e][1,4]diazepin-2(3H)-one (1b, 1c), [Pd(2)L(2)(mu-dppf)Cl(2)], where L= 1-methyl-5-phenyl-1H-benzo[e][1,4]diazepin-2(3H)-one (4a) or (R)-3-isopropyl-1-methyl-5-phenyl-1H-benzo[e][1,4]diazepin-2(3H)-one (4b), respectively, and dppe = 1,2-bis(diphenylphosphino)ethane, dppf = 1,1'-bis(diphenylphosphino)ferrocene. The complexes were characterised in solution, by (1)H and (31)P NMR spectroscopy, and single crystals of complexes 6b and 7 were studied in the solid state by X-ray crystallography. The palladacycles were evaluated for in vitro activity as cytotoxic agents on A2780/S cells and also as cathepsin B inhibitors, an enzyme implicated in a number of cancer related events.

Item Type: Article
Additional Information: [1] First published online 24th August 2009
Uncontrolled Keywords: lysosomal cysteine proteases, bioorganometallic chemistry, breast-cancer, complexes, progression, drugs, pharmaceuticals
Subjects: Q Science > QD Chemistry
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Department of Pharmaceutical, Chemical & Environmental Sciences
Related URLs:
Last Modified: 17 Oct 2016 09:09
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/2101

Actions (login required)

View Item View Item