کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1325254 1499945 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Novel benzyl-substituted vanadocene anticancer drugs
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Novel benzyl-substituted vanadocene anticancer drugs
چکیده انگلیسی

From the reaction of 6-(p-methoxyphenyl) fulvene (1a), 6-(3,4-dimethoxyphenyl) fulvene (1b) and 6-(3,4,5-trimethoxyphenyl) fulvene (1c) with LiBEt3H, lithiated cyclopentadienide intermediates (2a–c) were synthesised. These intermediates were then transmetallated to vanadium with VCl4 to yield the benzyl-substituted vanadocenes bis-[(p-methoxybenzyl)cyclopentadienyl] vanadium(IV) dichloride (3a), bis-[(3,4-dimethoxybenzyl)cyclopentadienyl] vanadium(IV) dichloride (3b), and bis-[(3,4,5-trimethoxybenzyl)cyclopentadienyl] vanadium(IV) dichloride (3c). The two vanadocenes 3a and 3c were characterised by single crystal X-ray diffraction. All three vanadocenes had their cytotoxicity investigated through MTT based preliminary in vitro testing on the LLC-PK (pig kidney epithelial) cell line in order to determine their IC50 values and compare them with the corresponding titanocene dichloride derivatives. Vanadocenes 3b–c were found to have IC50 values of 9.1 and 8.3 μM, while 3a showed a superior value of 3.0 μM, respectively.

Three benzyl-substituted vanadocene dichloride complexes were synthesised through the hydridolithiation reaction of appropriately substituted fulvenes with LiBEt3H. Within, the synthesis of the three vanadocene derivatives are reported along with a structural discussion of two of the vanadocenes. Additionally, the compounds were tested for their anticancer activity.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Organometallic Chemistry - Volume 694, Issues 9–10, 15 April 2009, Pages 1369–1374
نویسندگان
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