Use of Quantitative Structure–Activity Relationship (QSAR) and ADMET prediction studies as screening methods for design of benzyl urea derivatives for anti-cancer activity
摘要:
2D and 3D quantitative structure--activity relationship studies have been carried out for establishing a correlation between the structural properties of benzyl urea derivatives and their anti-tumour activities. From this correlation, the new chemical entities were designed, and their activity and absorption, distribution, metabolism, excretion, and toxicity properties were also predicted. Finally, the most promising compounds from these screening were synthesized and biologically evaluated for their anti-cancer properties. Compound 1-(2, 4-dimethylphenyl)-3, 3-dimethyl-1-(2-nitrobenzyl) urea (7d) showed significant anti-proliferative activity (at 100 mu A mu g/mL) in human cancer cell lines-T-cell leukemia (Jurkat J6), myelogenous leukemia (K562), and breast cancer (MCF-7) compared to reference standard 5-flurouracil.
Syntheses of phenanthridines and benzophenanthridines by intramolecular ortho-arylation of aryl amide ions with aryl halides via SRN1 reactions
作者:Maria E. Budén、Roberto A. Rossi
DOI:10.1016/j.tetlet.2007.10.009
日期:2007.12
The photostimulated reaction of N-(2-halo-benzyl)aryl amines with t-BuOK in liquid ammonia affords fused azaheterocycles by the SRN1 mechanism. The starting materials are easily obtained by the reaction of 2-halo-benzyl chloride and aromatic amines to prepare the secondary amines. Through this approach, phenanthridine (90%), 4-phenylphenanthridine (87%), benzo[a]phenanthridine (98%), and benzo[c]phenanthridine
的光刺激反应ñ - (2-卤代-苄基)芳基胺与吨-BuOK在由S稠合氮杂杂环液氨得到RN 1机构。通过使2-卤代苄基氯与芳族胺反应以制备仲胺,可以容易地获得起始原料。通过这种方法,合成了菲啶(90%),4-苯基菲啶(87%),苯并[ a ]菲啶(98%)和苯并[ c ]菲啶(84%)。
Electron-Transfer-Mediated Synthesis of Phenanthridines by Intramolecular Arylation of Anions from <i>N</i>-(<i>ortho</i>-Halobenzyl)arylamines: Regiochemical and Mechanistic Analysis
作者:María E. Budén、Viviana B. Dorn、Martina Gamba、Adriana B. Pierini、Roberto A. Rossi
DOI:10.1021/jo9025918
日期:2010.4.2
The synthesis of a series of substituted phenanthridines by photostimulated C-C cyclization of anions from N-(ortho-halobenzyl)arylamines has been found to proceed in very good to excellent yields (79-95%) in liquid ammonia and in DMSO. The N-(ortho-halobenzyl)arylamines are obtained in good to very good isolated yields (44-85%) by nucleophilic substitution of ortho-halobenzylchlorides with different arylamines. The reaction of the anions of a diverse set of N-(ortho-halobenzyl)arylamines was studied, and the methodology was extended to the synthesis of tri-spheridine, a natural product, in very good yield. In order to explain the regiochemical outcome or these reactions, a theoretical analysis was performed with DFT methods and the B3LYP functional.
Synthesis and in vitro activity of new tetrahydronaphtho[1,2-b]azepine derivatives against Trypanosoma cruzi and Leishmania chagasi parasites
作者:Alirio Palma、Andrés Felipe Yépes、Sandra Milena Leal、Carlos Andrés Coronado、Patricia Escobar
DOI:10.1016/j.bmcl.2008.05.013
日期:2009.4
Series of 2-exo-aryl-1,4-epoxy-2,3,4,5-tetrahydronaphtho[1,2-b]azepines 3a-k and cis-2-aryl-4-hydroxy2,3,4,5-tetrahydronaphtho[1,2-b] azepines 4a-j were synthesized and evaluated against free and intracellular live forms of Trypanosoma cruzi and Leishmania chagasi parasites using in vitro assays. Cell toxicity was also analyzed on Vero and THP-1 mammalian cell lines. The compounds 3c, 3f, and 4d were the most active against both live forms of T. cruzi parasites with low mammalian cell toxicity. Some compounds were active on free live forms of L. chagasi parasites but none was active on intracellular amastigotes of L. chagasi infecting THP-1 macrophages. (C) 2008 Elsevier Ltd. All rights reserved.
KESSAR, SATINDER V.;GUPTA, YASH P.;BALAKRISHNAN, PRASANNA;SAWAL, KEWAL K.+, J. ORG. CHEM., 53,(1988) N 8, 1708-1713
ORGANOMETALLIC COMPLEX, ORGANIC LIGHT-EMITTING ELEMENT USING SAME, AND DISPLAY DEVICE
申请人:Kamatani Jun
公开号:US20090134785A1
公开(公告)日:2009-05-28
An organometallic complex is represented by Formula (1) below.
ML
m
L′
n
(1)
In Formula (1) M stands for Ir, Rh, Pt, or Pd, m is an integer of 1 to 3, and n is an integer of 0 to 2, where m+n=3. ML
m
denotes a partial structure represented by Formula (2) below. ML′
n
denotes a partial structure represented by at least one of Formulas (3) to (5) below.