n-Bu<sub>4</sub>NI-catalyzed selective dual amination of sp<sup>3</sup> C–H bonds: oxidative domino synthesis of imidazo[1,5-c]quinazolines on a gram-scale
作者:Dan Zhao、Teng Wang、Qi Shen、Jian-Xin Li
DOI:10.1039/c4cc01444h
日期:——
An n-Bu4NI catalyzed domino reaction that involves selective dual amination of sp(3) C-Hbonds has been developed. The protocol affords a facile and efficient approach to the synthesis of imidazo[1,5-c]quinazolines under mild conditions.
Synthesis and cyclisation studies of (E)-2-aryl-1-methyl-3-styrylquinolin-4(1H)-ones
作者:Djenisa H.A. Rocha、Diana C.G.A. Pinto、Artur M.S. Silva
DOI:10.1016/j.tet.2015.07.058
日期:2015.10
The synthesis of (E)-2-aryl-1-methyl-3-styrylquinolin-4(1H)-ones, through the Heck reaction of 2-aryl-3-iodo-1-methyl-quinolin-4(1H)-ones with styrene is described. 2-Aryl-3-iodo-1-methyl-2-quinolin-4(1H)-ones can be obtained efficiently in a two-step transformation, methylation followed by in situ cyclization of N-(2-acetylphenyl)benzamides into 2-aryl-1-methylquinolin-4(1H)-ones, which underwent
通过2-芳基-3-碘-1-甲基-1-甲基喹啉-4(1 H)的Heck反应合成(E)-2-芳基-1-甲基-3-苯乙烯基喹啉-4(1 H)-描述了一种与苯乙烯的化合物。可以通过两步转化有效地获得2-Aryl-3-iodo-1-methyl-2-quinolin-4(1 H)-one,将其甲基化,然后将N-(2-乙酰基苯基)苯甲酰胺原位环化为2-甲基2-芳基-1-甲基喹啉-4(1 H)-一,用碘和催化量的Can进行选择性3-碘化。(E)-2-芳基-1-甲基-1-甲基-3-苯乙烯基喹啉-4(1 H)的环化研究)-酮在高温或光诱导的电环化反应下会生成4-芳基-2-苯基呋喃[3,2- c ]喹啉和12-甲基-5-苯基苯并[ c ] ac啶7(12 H)-酮。
In Silico Discovery and Validation of Amide Based Small Molecule Targeting the Enzymatic Site of Shiga Toxin
Shiga toxin (Stx), a category B biothreat agent, is a ribosome inactivating protein and toxic to human and animals. Here, we designed and synthesized small molecules that block the active site of the Stx A subunit. On the basis of binding energy, 20 molecules were selected for synthesis and evaluation. These molecules were primarily screened using fluorescence-based thermal shift assay and in vitro