Merck
CN
Search Within

234826

应用筛选条件
关键词:'234826'
显示 1-28 共 28 条结果 关于 "234826" 范围 论文
Sumit Saha et al.
The Journal of organic chemistry, 76(17), 7229-7234 (2011-07-29)
Titanocene(III) chloride (Cp(2)TiCl) mediated radical induced allylation of aldimines for the preparation of homoallyl amines is described. The radical was generated from the allyl bromide using Cp(2)TiCl as the radical source. Formal synthesis of C(4)-C(5')-linked 4'-deoxy aza-disaccharide is demonstrated and
Gladiany Ramos et al.
Anticancer research, 34(4), 1609-1615 (2014-04-03)
Titanocene dichloride held great promise as a chemotherapeutic compound in pre-clinical studies. However, subsequent clinical trials revealed hepatoxicity and nephrotoxicity, which limited its use in clinical applications. Therefore, we used steroid pendant groups to improve the targeting of titanocene in
Ramón Hernández et al.
Toxicology in vitro : an international journal published in association with BIBRA, 24(1), 178-183 (2009-09-24)
Replacement of the ancillary ligand in titanocene dichloride by amino acids provides titanocene species with high water solubility. As part of our research efforts in the area of titanium-based antitumor agents, we have investigated the cytotoxic activity of Cp(2)TiCl(2) and
Maria Pavlaki et al.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry, 14(6), 947-957 (2009-04-25)
Titanocene dichloride, the most studied metallocene, exhibits antiproliferative activity in a wide spectrum of murine and human tumours. In this article it is demonstrated that titanocene dichloride inhibits tumour gelatinases in a dose-dependent manner. Substrate saturation experiments and the fact
[Determination of organometallic antitumor crude drug titanocene dichloride by NP-HPLC].
Yunlan Li et al.
Se pu = Chinese journal of chromatography, 25(2), 282-283 (2007-06-22)
Samaresh Jana et al.
The Journal of organic chemistry, 70(20), 8252-8254 (2005-11-10)
[Chemical reaction: see text] A radical based Wagner-Meerwein-type rearrangement has been observed in camphoric systems. The radical was generated from the epoxide using Cp2TiCl as the radical source. The radical initiator Cp2TiCl was prepared in situ from commercially available Cp2TiCl2
Marize C Valadares et al.
European journal of pharmacology, 473(2-3), 191-196 (2003-08-02)
In the present work, we studied the effects of two titanocenes, biscyclopentadienyldichlorotitanium IV, (DDCT) and its derivative, biscyclopentadienylditiocianatetitanium IV (BCDT), on the activity of natural killer (NK) cells in Ehrlich ascites tumour (EAT)-bearing BALB/c mice. In order to investigate a
M L Pereira et al.
Chemotherapy, 53(6), 446-448 (2007-10-25)
Some chemotherapeutic agents induce testicular damage, thereby affecting fertility potential. Two metal-based antineoplastic complexes, titanocene dichloride and budotitane, were used to demonstrate their effects on the blood-testis barrier (BTB). Male mice were treated in vivo with the two titanium compounds
Sandra Cuffe et al.
The Prostate, 71(2), 111-124 (2010-07-29)
While locally advanced prostate cancer is initially treatable with androgen ablation, eventually cells develop a castrate-resistant phenotype. Currently, there are no effective treatments for this form of the disease with Docetaxel only providing a small survival advantage. In this study
Tetrahedron Letters, 48, 3205-3205 (2007)
A Fernandez-Mateos et al.
The Journal of organic chemistry, 72(26), 9973-9982 (2007-11-30)
The reactions of a series of epoxynitriles and epoxyketones induced by titanocene chloride have been studied. The kinetics of the decyanogenation of beta,gamma-epoxynitriles with Ti(III) corresponds to a radical reaction (k25 approximately 106 s-1), as demonstrated by competition experiments with
Ramón Hernández et al.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry, 13(5), 685-692 (2008-02-22)
As part of our research efforts in the area of titanium-based antitumor agents, we have investigated the cytotoxic activity of [Ti(4)(maltolato)(8)(mu-O)(4)], (Cp-R)(2)TiCl(2) and (Cp-R)CpTiCl(2) (R = CO(2)CH(3) and CO(2)CH(2)CH(3)), and three water-soluble titanocene-amino acid complexes-[Cp(2)Ti(aa)(2)]Cl(2) (aa = L: -cysteine, L:
Active cytotoxic reagents based on non-metallocene non-diketonato well-defined C2-symmetrical titanium complexes of tetradentate bis(phenolato) ligands.
Michal Shavit et al.
Journal of the American Chemical Society, 129(40), 12098-12099 (2007-09-20)
Andrea Erxleben et al.
Journal of inorganic biochemistry, 104(4), 390-396 (2009-12-29)
The interaction of the antitumoural metallocene dihalides, titanocene dichloride (Cp(2)TiCl(2)) and Titanocene Y (bis-[(p-methoxybenzyl)cyclopentadienyl]titanium(IV) chloride), with bis(4-nitrophenyl) phosphate (BNPP), which is a widely used model for the phosphate diester linkages in DNA, has been studied. Cp(2)TiCl(2) has been shown to
Li Ming Gao et al.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry, 12(7), 959-967 (2007-06-15)
Functionalization of cyclopentadienyl (Cp) ligands and incorporation of these into a Ti(IV) center require careful design and selection of the appropriate synthetic routes to obtain the desired product in reasonably good yields. As part of our research efforts in the
Francesco Caruso et al.
Mini reviews in medicinal chemistry, 4(1), 49-60 (2004-02-03)
Most anticancer titanium compounds act against tumors in the gastrointestinal tract. Activity towards breast, lung and skin (melanoma) cancers is shown by some as well. Among their appealing properties is that they do not show common side effects of widely
Ping Chen et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 76(3), 413-420 (2010-09-22)
In order to improve both safety and efficacy of cancer chemotherapy of titanocene dichloride and overcome the shortcomings such as instability and short half-life in the human body, we report a controlled release system of titanocene dichloride by electrospun fiber
Abhijeet Pandey et al.
International journal of pharmaceutics, 588, 119735-119735 (2020-08-09)
Multimodal therapeutic approach has been gaining lot of attention for effective therapy of cancer. In the present work, a novel and unique pH responsive nanoplatform have been developed for multimodal therapy of glioblastoma using protein, biopolymer and MOFs. Lactoferrin (Lf)
Gema Ruano et al.
The Journal of organic chemistry, 67(23), 8243-8246 (2002-11-09)
The reductive opening of epoxyimonobactams 1 with titanoncene (III) chloride gives rise to radicals that can be trapped by intramolecular pi systems (i.e., conjugated alkenes and lactone and amide carbonyls) in a stereospecific way to give new carbocyclic compounds such
Mauro Ravera et al.
Journal of inorganic biochemistry, 99(12), 2264-2269 (2005-10-08)
Titanocene dichloride exhibits anti-proliferative activity in a wide spectrum of murine and human tumors. Although it is still unclear as to which species are active in biological media, they all readily deliver Ti(IV) to transferrin, the protein that transports iron
Yajaira Pérez et al.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry, 10(2), 94-104 (2004-12-25)
Three new water soluble titanocene-amino acid complexes have been synthesized via the reaction of Cp(2)TiCl(2) and two equivalents of amino acid (L) in methanol, affording [Cp(2)TiL(2)]Cl(2), L = L-cysteine (2), D-penicillamine (3) and L-methionine (4). These complexes have been characterized
Damian P Buck et al.
Dalton transactions (Cambridge, England : 2003), (17)(17), 2328-2334 (2008-04-17)
The encapsulation of the aquated forms of molybdocene dichloride and titanocene dichloride by cucurbit[n]uril (Q[n], where n = 7 and 8) at different pD values has been studied by (1)H NMR spectroscopy and molecular modelling. (1)H NMR titration experiments indicate
H C Kolberg et al.
European journal of gynaecological oncology, 26(4), 398-402 (2005-08-27)
In this study the relationship between therapy with paclitaxel, cisplatin, vinorelbine and titanocene dichloride and of the expression of proliferation markers (ki67 and S-phase fraction) and tumour suppressor gene p53 was analyzed using a human ovarian cancer xenograft model. Biopsy
Arthur D Tinoco et al.
Journal of the American Chemical Society, 130(7), 2262-2270 (2008-01-30)
The trafficking of titanium(IV) by human serum transferrin (HsTf) has been implicated in the physiology of this hydrolysis-prone metal. The current work broadens to include the further interactions of Ti(IV) in serum that bear on this model. Ti2HsTf (2 equiv)
Katherine M Buettner et al.
Dalton transactions (Cambridge, England : 2003), 40(37), 9580-9588 (2011-08-19)
Since the discovery of the anticancer activity of titanocene dichloride (TDC), many derivatives have been developed and evaluated. MKT4, a soluble, water-stable formulation of TDC, was used for both Phase I and Phase II human clinical trials. This formulation is
Alberto García-Peñas et al.
Journal of inorganic biochemistry, 106(1), 100-110 (2011-11-25)
Titanocene dichloride [Ti(η(5)-C(5)H(5))(2)Cl(2)] (1), has been grafted onto dehydrated hydroxyapatite (HAP), Al(2)O(3) and two mesoporous silicas MSU-2 (Michigan State University Silica type 2) and HMS (Hexagonal Mesoporous Silica), to give the novel materials HAP/[Ti(η(5)-C(5)H(5))(2)Cl(2)] (S1) (1.01 wt.% Ti), Al(2)O(3)/[Ti(η(5)-C(5)H(5))(2)Cl(2)] (S2)
Silvia Eger et al.
Inorganic chemistry, 49(4), 1292-1294 (2010-01-09)
Titanocene difluorides can be obtained by halide metathesis of the respective titanocene dichlorides with trimethyltin fluoride (Me(3)SnF), giving access to a new class of cytotoxic active substances. Furthermore, an improved method for the synthesis of diaryl-substituted titanocene dichlorides is presented.
Seiji Takahashi et al.
The journal of physical chemistry. A, 116(2), 865-869 (2011-12-22)
Characterization of the compound Ti(C(5)H(5))(2)Cl(2) was studied using Li(+) ion attachment mass spectrometry (IAMS) as an analytical methodology. Since this target compound is used as an anticancer drug in the treatment of leukemia, accurate and rapid monitoring methods for the
1/1