Abstract
| Language | English |
|---|---|
| Pages | 6598-6605 |
| Number of pages | 8 |
| Journal | ChemistrySelect |
| Volume | 1 |
| Issue number | 20 |
| Early online date | 15 Dec 2016 |
| DOIs | |
| Publication status | Published - Dec 2016 |
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β-Diketonate Titanium Compounds Exhibiting High In Vitro Activity and Specific DNA Base Binding. / Lord, Rianne M.; Mannion, James J.; Crossley, Benjamin D.; Hebden, Andrew J.; McMullon, Max W.; Fisher, Julie; Phillips, Roger M.; McGowan, Patrick C.
In: ChemistrySelect, Vol. 1, No. 20, 12.2016, p. 6598-6605.Research output: Contribution to journal › Article
TY - JOUR
T1 - β-Diketonate Titanium Compounds Exhibiting High In Vitro Activity and Specific DNA Base Binding
AU - Lord, Rianne M.
AU - Mannion, James J.
AU - Crossley, Benjamin D.
AU - Hebden, Andrew J.
AU - McMullon, Max W.
AU - Fisher, Julie
AU - Phillips, Roger M.
AU - McGowan, Patrick C.
N1 - Not OA compliant; no AAM on ePrints. SH.
PY - 2016/12
Y1 - 2016/12
N2 - Herein, we report 30 new β-diketonate titanium compounds of the type [Ti(O,O)2X2], whereby O,O=asymmetric or symmetric β-diketonate ligand and X=Cl, Br, OEt or OiPr. Thirteen new crystal structures are discussed and show that these octahedral species all adopt cis geometries in the solid state. These compounds have been tested for their cytotoxicity using SRB and MTT assays, showing several of the compounds are as potent as cisplatin against a range of tumor cell lines. Results also show the [Ti(O,O)2Br2] complexes are more potent than [Ti(O,O)2Cl2], [Ti(O,O)2(OEt)2] and [Ti(O,O)2(OiPr)2]. Using a simple symmetrical heptane-3,5-dione (O,O) ligand bound to titanium, we observed more than a 50-fold increase in potency with the [Ti(O,O)2Br2] (28) when compared to [Ti(O,O)2Cl2] (27). One of the more potent compounds (6) has been added to three different sixmers of DNA, in order to analyse the potential DNA binding of the compound. NMR studies have been carried out on the compounds, in order to understand the structural properties and the species formed in solution during the in vitro cell assays.
AB - Herein, we report 30 new β-diketonate titanium compounds of the type [Ti(O,O)2X2], whereby O,O=asymmetric or symmetric β-diketonate ligand and X=Cl, Br, OEt or OiPr. Thirteen new crystal structures are discussed and show that these octahedral species all adopt cis geometries in the solid state. These compounds have been tested for their cytotoxicity using SRB and MTT assays, showing several of the compounds are as potent as cisplatin against a range of tumor cell lines. Results also show the [Ti(O,O)2Br2] complexes are more potent than [Ti(O,O)2Cl2], [Ti(O,O)2(OEt)2] and [Ti(O,O)2(OiPr)2]. Using a simple symmetrical heptane-3,5-dione (O,O) ligand bound to titanium, we observed more than a 50-fold increase in potency with the [Ti(O,O)2Br2] (28) when compared to [Ti(O,O)2Cl2] (27). One of the more potent compounds (6) has been added to three different sixmers of DNA, in order to analyse the potential DNA binding of the compound. NMR studies have been carried out on the compounds, in order to understand the structural properties and the species formed in solution during the in vitro cell assays.
U2 - 10.1002/slct.201601290
DO - 10.1002/slct.201601290
M3 - Article
VL - 1
SP - 6598
EP - 6605
JO - ChemistrySelect
T2 - ChemistrySelect
JF - ChemistrySelect
SN - 2365-6549
IS - 20
ER -