Novel pyrazole derivatives: Synthesis and evaluation of anti-angiogenic activity
作者:Michael S. Christodoulou、Sandra Liekens、Konstantinos M. Kasiotis、Serkos A. Haroutounian
DOI:10.1016/j.bmc.2010.04.076
日期:2010.6.15
The synthesis of a series of novel trisubstituted pyrazolederivatives and their PIFA-mediated conversion to molecules bearing the fused pyrazolo[4,3-c]quinoline ring system is reported. The anti-angiogenicactivity of these compounds was evaluated by using in vitro assays for endothelial cell proliferation and migration, and in the chicken chorioallantoic membrane (CAM) assay. Compounds containing
报道了一系列新型三取代吡唑衍生物的合成及其PIFA介导的向带有稠合吡唑并[4,3- c ]喹啉环系统的分子的转化。这些化合物的抗血管生成活性通过使用体外测定内皮细胞增殖和迁移的方法以及鸡绒膜尿囊膜(CAM)的方法进行评估。含有融合的吡唑并[4,3- c ]喹啉基序的化合物以有效的抗血管生成化合物出现,它们还具有在体外抑制人乳腺癌(MCF-7)和宫颈癌(Hela)细胞生长的能力。
Synthesis and In Vitro Biological Evaluation of Novel Pyrazole Derivatives as Potential Antitumor Agents
作者:Michael S. Christodoulou、Nikolas Fokialakis、Sangkil Nam、Richard Jove、Alexios-Leandros Skaltsounis、Serkos A. Haroutounian
DOI:10.2174/157340612802084252
日期:2012.9.1
The synthesis of twenty seven novelpyrazolederivativesbearing aryl substituted groups at positions 1 and 3 of the pyrazole structural motif and various functional groups at position 4 is presented. The critical step for their synthesis is the TCT/DMF promoted cyclization of the corresponding hydrazine precursors, which provided the desired pyrazole skeleton. The anticancer properties of the novel
PIFA-mediated synthesis of novel pyrazoloquinolin-4-ones as potential ligands for the estrogen receptor
作者:Michael S. Christodoulou、Konstantinos M. Kasiotis、Nikolas Fokialakis、Imanol Tellitu、Serkos A. Haroutounian
DOI:10.1016/j.tetlet.2008.09.098
日期:2008.12
efficient preparation of pyrazoloquinolin-4-ones, as potential ligands for the estrogen receptor, via a PIFA [phenyliodine(III)bis(trifluoroacetate)] promoted cyclization reaction with overall yields up to 29% over six steps is described. The employed strategy, based on an electrophilic amidation reaction as the key step of the synthesis, allows the generation of a diverse array of derivatives.
Construction of Spiro[indoline-3,3′-pyridazines] and Spiro[indene-2,3′-pyridazines] via TEMPO-Mediated Oxidative Aza-Diels-Alder Reactions
作者:Rong Ye、Chao-Guo Yan
DOI:10.1002/ejoc.201900955
日期:2019.9.15
Spiro[indoline‐3,3′‐pyridazine] and spiro[indene‐2,3′‐pyridazine] were efficiently and diastereoselective synthesized from TEMPO‐promoted oxidative aza‐Diels‐Alder reaction of ketohydrazones.
Palladium-catalyzed [5+2] oxidative annulation of N-Arylhydrazones with alkynes through C H activation to synthesize Benzo[d][1,2]diazepines
作者:Manjoorahmed Asamdi、Mohammedumar M. Shaikh、Prakashsingh M. Chauhan、Kishor H. Chikhalia
DOI:10.1016/j.tet.2018.05.051
日期:2018.7
An efficient and novel method using palladium catalyst for the synthesis of benzo[d][1,2]diazepines by [5 + 2] annulation of N-arylhydrazones with alkynes has been developed. This methodology undergoes through eight membered palladacycle serving as a backbone for the formation of C-C/C-N bond to provide benzodiazepine derivatives in moderate to good yield. (C) 2018 Elsevier Ltd. All rights reserved.