Hydroheteroarylation of Unactivated Alkenes Using <i>N</i>-Methoxyheteroarenium Salts
作者:Xiaoshen Ma、Hester Dang、John A. Rose、Paul Rablen、Seth B. Herzon
DOI:10.1021/jacs.7b02388
日期:2017.4.26
reductive coupling of unactivated alkenes with N-methoxy pyridazinium, imidazolium, quinolinium, and isoquinolinium salts under hydrogen atom transfer (HAT) conditions, and an expanded scope for the coupling of alkenes with N-methoxy pyridinium salts. N-Methoxy pyridazinium, imidazolium, quinolinium, and isoquinolinium salts are accessible in 1-2 steps from the commercial arenes or arene N-oxides (25-99%)
to 24S-hydroxycholesterol (24HC). Despite a wide range of potential of CH24H as a drug target, no potent and selective inhibitors have been identified. Here, we report on the structure-based drug design (SBDD) of novel 4-arylpyridine derivatives based on the X-ray co-crystal structure of hit derivative 1b. Optimization of 4-arylpyridine derivatives led us to identify 3v ((4-benzyl-4-hydroxypiperidin-1-yl)(2
The present invention provides a compound useful as an agent for the prophylaxis or treatment of neurodegenerative disease and the like, or a salt thereof.
The present invention relates to a compound represented by the formula
wherein each symbol is as defined in the specification,
or a salt thereof.
A novel compound [Fe(PZDA)(H2O)2]·2H2O}n has been synthesized and its structure determined by X-ray diffraction analysis, which consists of a quasi-ladder-like double chain running along a axis where Fe(II) ions are linked through the carboxylic groups acting as the edges of the ladder and pyrazine rings functioning as the rungs. Variable-temperature magnetic susceptibility study indicates the presence of spin frustration in the double chain compound.
合成了一种新化合物 [Fe(PZDA)(H2O)2]·2 }n,并通过 X 射线衍射分析确定了其结构。该化合物由沿 a 轴的准梯形双链构成,其中 Fe(II) 离子通过羧基相连,羧基作为梯子的边缘,而吡嗪环则作为梯子的横档。变温磁 susceptibili 研究表明,该双链化合物存在自旋挫折现象。
C2-Selective, Functional-Group-Divergent Amination of Pyrimidines by Enthalpy-Controlled Nucleophilic Functionalization
Synthesis of heteroaryl amines has been an important topic in organic chemistry because of their importance in small-molecule discovery. In particular, 2-aminopyrimidines represent a highlyprivilegedstructuralmotif that is prevalent in bioactive molecules, but a general strategy to introduce the pyrimidine C2–N bonds via direct functionalization is elusive. Here we describe a synthetic platform