Dimethylamino-functionalised and N-heteroaryl-substituted titanocene anticancer drugs: synthesis and cytotoxicity studies
| Autor: | Eoin Fitzpatrick, Thomas Hickey, James Claffey, Clara Pampillón, Matthias Tacke, Megan Hogan |
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| Rok vydání: | 2007 |
| Předmět: |
Pharmacology
Molecular Structure Cell Survival Swine Stereochemistry Molecular Conformation Titanocene dichloride chemistry.chemical_element Antineoplastic Agents Medicinal chemistry chemistry.chemical_compound Transmetalation Oncology chemistry Organometallic Compounds Animals LLC-PK1 Cells Molecule Pharmacology (medical) Lithium Cytotoxicity IC50 Fulvene Pyrrole |
| Zdroj: | Investigational New Drugs. 25:425-433 |
| ISSN: | 1573-0646 0167-6997 |
| DOI: | 10.1007/s10637-007-9061-8 |
| Popis: | From the carbolithiation of 6-N,N-dimethylamino fulvene (3a) and different lithiated N-heterocyclic compounds (N,N-dimethylaminomethylpyrrole, 1-methylimidazole and 2,4-[bis(N',N'-dimethylaminomethyl)]-N-methyl pyrrole), the corresponding lithium cyclopentadienide intermediate (4a-c) was formed. These three lithiated intermediates underwent a transmetallation reaction with TiCl4 resulting in dimethylamino-functionalised titanocenes 5a-c. When these titanocenes were tested against LLC-PK cells, the IC50 values obtained were of 13, and 63 microM for titanocenes 5b and 5c, respectively. The most cytotoxic titanocene in this paper (5a) with an IC50 value of 6.8 microM is found to be almost as cytotoxic as cis-platin, which showed an IC50 value of 3.3 microM, when tested on the epithelial pig kidney LLC-PK cell line, and titanocene 5c is approximately 400 times better than titanocene dichloride itself. |
| Databáze: | OpenAIRE |
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