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https://www.readbyqxmd.com/read/25111267/chiral-multidentate-oxazoline-ligands-based-on-cyclophosphazene-cores-synthesis-characterization-and-complexation-studies
#1
Dheeraj Kumar, Jatinder Singh, Anil J Elias
Chiral oxazoline based bi and hexadentate ligands built on cyclophosphazene cores have been synthesized and characterized. (NPPh2)2[NP(m-OC6H4C(O)OCH3)2] (1) was prepared by the reaction of gem-(NPPh2)2(NPCl2) with methyl-3-hydroxy benzoate in the presence of Cs2CO3. Compound 1 was converted to the dicarboxylic acid (NPPh2)2[NP(m-OC6H4C(O)OH)2] (2) by base promoted hydrolysis with KO(t-Bu). The dicarboxylic acid 2 on reaction with oxalyl chloride followed by (S)-(+)-2-amino-3-methyl-1-butanol, triethylamine and mesyl chloride was converted to the C2-symmetric phosphazene based chiral bisoxazoline ligand (NPPh2)2[NP{m-OC6H4(4-iPr-2-Ox)}2] (3) (Ox = oxazolinyl)...
October 7, 2014: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/24960403/phase-ii-study-of-gemcitabine-oxaliplatin-in-combination-with-panitumumab-in-kras-wild-type-unresectable-or-metastatic-biliary-tract-and-gallbladder-cancer
#2
A F Hezel, M S Noel, J N Allen, T A Abrams, M Yurgelun, J E Faris, L Goyal, J W Clark, L S Blaszkowsky, J E Murphy, H Zheng, A A Khorana, G C Connolly, O Hyrien, A Baran, M Herr, K Ng, S Sheehan, D J Harris, E Regan, D R Borger, A J Iafrate, C Fuchs, D P Ryan, A X Zhu
BACKGROUND: Current data suggest that platinum-based combination therapy is the standard first-line treatment for biliary tract cancer. EGFR inhibition has proven beneficial across a number of gastrointestinal malignancies; and has shown specific advantages among KRAS wild-type genetic subtypes of colon cancer. We report the combination of panitumumab with gemcitabine (GEM) and oxaliplatin (OX) as first-line therapy for KRAS wild-type biliary tract cancer. METHODS: Patients with histologically confirmed, previously untreated, unresectable or metastatic KRAS wild-type biliary tract or gallbladder adenocarcinoma with ECOG performance status 0-2 were treated with panitumumab 6 mg kg(-1), GEM 1000 mg m(-2) (10 mg m(-2) min(-1)) and OX 85 mg m(-2) on days 1 and 15 of each 28-day cycle...
July 29, 2014: British Journal of Cancer
https://www.readbyqxmd.com/read/18607506/radiotherapy-combined-with-gemcitabine-and-oxaliplatin-in-pancreatic-cancer-cells
#3
Meredith A Morgan, Amichay Meirovitz, Mary A Davis, Laura E Kollar, Maria C Hassan, Theodore S Lawrence
Clinical evidence suggests that gemcitabine (Gem) plus oxaliplatin (Ox) is superior to gemcitabine alone in advanced pancreatic carcinoma. The addition of radiation to gemcitabine improves response and is a standard treatment for locally advanced disease. We investigated the effect of oxaliplatin on gemcitabine-based chemoradiation by determining whether gemcitabine and oxaliplatin produced synergistic cytotoxicity using median effect analysis and radiosensitization using clonogenic survival assays. We analyzed the effects of gemcitabine and oxaliplatin on cell cycle distribution by DNA content and on radiation-induced DNA damage repair by phosphorylated H2AX (gamma-H2AX)...
March 2008: Translational Oncology
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