制备了一系列咪唑并[1,5- a ]吡嗪的羟吲哚衍生物,并通过1 H NMR,质量和HRMS数据证实。评估了这些化合物对一组来自52种人类肿瘤细胞系的抗癌活性,这些细胞系来自9种不同的癌症类型:白血病,肺癌,结肠癌,中枢神经系统,黑色素瘤,卵巢癌,肾癌,前列腺癌和乳腺癌。其中化合物7l显示出显着的抗癌活性,GI 50值为1.54至13.0μM。用6.5μM(IC 50)浓度的化合物7l处理A549细胞后,在G0 / G1期观察到细胞周期停滞并诱导凋亡。膜联蛋白V-FITC以及DNA片段分析证实了这一点,有趣的是该化合物(7l)不影响正常细胞。
examples of catalysis using nickel complexes have been reported. In this work, the Ni-catalyzed transformation of ortho C-H bonds utilizing chelation assistance, such as oxidative cycloaddition of aromatic amides with alkynes, has been achieved.
Cobalt catalysed aminocarbonylation of thiols in batch and flow for the preparation of amides
作者:Jose Maria Orduña、Gema Domínguez、Javier Pérez-Castells
DOI:10.1039/d1ra04736a
日期:——
The synthesis of amides from thiols through a cobalt-catalyzed aminocarbonylation is shown. After optimizing all the reaction parameters, the methodology makes possible the obtention of amides with variable yields, while competing reactions such as the formation of disulfides and ureas can be limited. The process works well with aromatic thiols with electron donating groups (EDG) whereas other thiols
An efficient method for N-acylation of amides is described using a pyridine ring as the internal nucleophilic catalyst to give imides in moderate to excellent yields. The methodology provides a facile, air insensitive, and environmentally friendly route to form diversified imide scaffolds, which exist widely in natural products and biologically active materials.
Synthesis and biological evaluation of imidazo[1,5-a]pyridine-benzimidazole hybrids as inhibitors of both tubulin polymerization and PI3K/Akt pathway
作者:Ahmed Kamal、A. V. Subba Rao、V. Lakshma Nayak、N. V. Subba Reddy、Konderu Swapna、G. Ramakrishna、Mallika Alvala
DOI:10.1039/c4ob01930j
日期:——
Imidazo[1,5-a]pyridine-benzimidazole hybrids are firstly reported herein to induce cytotoxicity by targeting microtubules.
Imidazo[1,5-a]吡啶-苯并咪唑杂合物首次报道在靶向微管的作用下诱导细胞毒性。
Direct Arylation of Imidazo[1,5-<i>a</i>]azines Through Ruthenium and Palladium Catalysis
作者:Daniela Sustac Roman、Valentin Poiret、Guillaume Pelletier、André B. Charette
DOI:10.1002/ejoc.201403268
日期:2015.1
The regioselective RuII-catalyzed direct ortho-arylation of C-3 aryl-substituted imidazo[1,5-a]azines with (hetero)aryl halides was investigated. The employment of RuII and PdII catalysts in the same flask resulted in two sequential and distinct C–H bond arylations, which allowed the rapid synthesis of highly conjugated compounds.