One-Pot Synthesis of Functionalized Benzimidazoles and 1H-Pyrimidines via Cascade Reactions of o-Aminoanilines or Naphthalene-1,8-diamine with Alkynes and p-Tolylsulfonyl Azide
作者:Yanguang Wang、Jin She、Zheng Jiang
DOI:10.1055/s-0029-1217515
日期:2009.7
A one-potsynthesis of functionalized benzimidazoles and 1H-pyrimidines via the cascadereactions of o-aminoanilines or naphthalene-1,8-diamine with terminal alkynes and p-tolylsulfonyl azide is reported. The protocol is efficient and general.
previously reported. Although most of the benzimidazole derivatives showed strong inhibitory activity in low micromolar potency, 2-(4-methoxybenzyl)-1H-benzo[d]imidazole (3m; IC50 = 1.7 μM) and 2-(2-methoxybenzyl)-1H-benzo[d]imidazole (3n; IC50 = 2.4 μM) showed the best inhibition. The structure activity relationship revealed that 2-benzylbenzimidazole scaffold with hydrogen bonding acceptor on phenyl
为了找到新的核因子κB活性抑制剂,合理设计,合成和系统研究了一系列苯并咪唑衍生物对RAW 264.7细胞中LPS诱导的NF-κB抑制的体外活性,基于基于柔性查尔酮JSH的SEAP分析(先前报道的((E)-1-(2-羟基-6-(异戊氧基)苯基)-3-(4-羟基苯基)丙-2-烯-1-酮)。尽管大多数苯并咪唑衍生物在低微摩尔浓度下均显示出强大的抑制活性,但是2-(4-甲氧基苄基)-1 H-苯并[ d ]咪唑(3m; IC 50 = 1.7μM)和2-(2-甲氧基苄基)-1 H-苯并[ d ]咪唑(3n ; IC50 = 2.4μM)表现出最好的抑制作用。结构活性关系表明,在苯环上带有氢键受体的2-苄基苯并咪唑支架以药效团的形式出现。
Water-based organic solderability preservative, and electronic board and surface treatment method using the same
申请人:TAMURA CORPORATION
公开号:US10149395B2
公开(公告)日:2018-12-04
A water-based organic solderability preservative includes (A) an imidazole compound, (B) an organic acid, (C) a complex coating formation aid, (D) an organic solvent and (E) water. The component (D) (organic solvent) has a solubility to water of 10 g/100 g or more at 20 degrees C. and a boiling temperature in a range from 100 degrees C. to 300 degrees C.
WATER-BASED ORGANIC SOLDERABILITY PRESERVATIVE, AND ELECTRONIC BOARD AND SURFACE TREATMENT METHOD USING THE SAME
申请人:TAMURA CORPORATION
公开号:US20170327702A1
公开(公告)日:2017-11-16
A water-based organic solderability preservative includes (A) an imidazole compound, (B) an organic acid, (C) a complex coating formation aid, (D) an organic solvent and (E) water. The component (D) (organic solvent) has a solubility to water of 10 g/100 g or more at 20 degrees C. and a boiling temperature in a range from 100 degrees C. to 300 degrees C.
Synthesis of 2-(Arylmethyl)benzazoles by the Sulfur-mediated Cyclization of 2-Aminophenol or 2-Aminoaniline with Arylacetylenes