Anticancer metallopharmaceutical agents based on mixed‐ligand palladium(II) complexes with dithiocarbamates and tertiary organophosphine ligands
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Bibliographic record
Abstract
Mixed‐ligand palladium(II) complexes of the type [(DT)Pd(PR 3 )Cl], where DT = diethyldithiocarbamate (1), dibutyldithiocarbamate (2,3), dipropyldithiocarbamate (4,5), bis(2‐methoxyethyl)dithiocarbamate; PR 3 = benzyldiphenylphosphine (1,4), diphenyl‐ o ‐tolylphosphine (2), diphenyl‐ t ‐butylphosphine (3), P‐chlorodiphenylphosphine (5) and triphenylphosphine (6), have been synthesized and characterized by elemental analyses and FT‐IR, Raman and multinuclear NMR spectroscopy. The structures of compounds 1 and 2 were determined by single‐crystal X‐ray diffraction (XRD) measurements and these analyses showed that the complexes have pseudo square‐planar geometry around the Pd(II) and that the dithiocarbamate ligand is bound in a bidentate fashion, while the remaining two positions are occupied by a tertiary organophosphine and a chloride ligand. The anticancer studies showed that the Pd(II) complexes are highly active against cisplatin‐resistant DU145 human prostate carcinoma (HTB‐81) cells with the highest activity shown by compound 6 (IC 50 = 2.12 µ m ). The redox behavior and ds‐DNA‐denaturing ability of the complexes were studied by cyclic voltammetry and two reduction and one oxidation waves were observed. The decrease in the reduction peak currents illustrated the consumption of the mixed‐ligand drug by the DNA molecule. Copyright © 2013 John Wiley & Sons, Ltd.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.006 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it