A series of benzimidazole derivatives, being potent modulators of human TNFα activity, are accordingly of benefit in the treatment and/or prevention of various human ailments, including autoimmune and inflammatory disorders; neurological and neurodegenerative disorders; pain and nociceptive disorders; cardiovascular disorders; metabolic disorders; ocular disorders; and oncological disorders.
dithiocarbamates and tetramethylthiuram disulfide (TMTD), respectively. With the promotion of NaH/CuI, the reaction of o-aminophenols with dithiocarbamates gave 2-aminobenzoxazoles with good yield (70–92%) in one pot manner, and 2-mercaptobenzoxazoles were synthesized (yield: 55–80%) in the presence of K2CO3 by treating o-aminophenols with tetramethylthiuram disulfide (TMTD). The feature of this method
通过分别用二硫代氨基甲酸酯和四甲基秋兰姆二硫化物(TMTD)处理邻氨基苯酚来选择性合成2-氨基苯并恶唑和2-巯基苯并恶唑。随着NaH / CuI的促进,邻氨基苯酚与二硫代氨基甲酸酯的反应可以一锅法得到2-氨基苯并恶唑,收率良好(70-92%),而合成2-巯基苯并恶唑(收率:55-80%)。通过用二甲基四甲基秋兰姆(TMTD)处理邻氨基苯酚来获得K 2 CO 3的存在。该方法的特征包括良好到极好的收率,容易的操作和广泛的底物范围,这使得该方案在制备某些潜在的药物活性化合物中具有实用性和吸引力。
Copper(I)-Catalyzed Tandem One-Pot Synthesis of 2-Arylthiobenzothiazoles and 2-Arylthiobenzoxazoles in Water
作者:Xing Liu、Shi-Bo Zhang、Hui Zhu、Zhi-Bing Dong
DOI:10.1021/acs.joc.8b01644
日期:2018.10.5
efficient tandem process for the preparation of 2-arylthiobenzothiazoles has been developed. By condensation of 2-aminobenzenethiol with tetramethylthiuram disulfide (TMTD), 2-mercaptobenzothiazoles was in situ generated, which susequently underwent coupling with iodobenzenes to give the desired 2-arylthiobenzothiazoles fluently in a one-pot manner. This method can also be used for the synthesis of 2-
AlCl<sub>3</sub>
-Promoted Synthesis of 2-Mercapto Benzoheterocycles by Using Sodium Dimethyldithiocarbamate as Thiocarbonyl Surrogate
作者:Xing Liu、Shi-Bo Zhang、Zhi-Bing Dong
DOI:10.1002/ejoc.201800993
日期:2018.10.24
AlCl3-mediated one-pot preparation of 2-mercapto benzoheterocycles (2-mercapto benzothiazoles, benzoxazoles and benzimidazoles) is described. By the treatment of a series of S, O and N heteroatoms containing bifunctional molecules with sodium dimethyldithiocarbamate in AlCl3, the desired benzoheterocycles are obtained smoothly. The protocol can also be applied on the synthesis of a series of thiazolidine-2-thiones
The present invention is directed to substituted diazepan compounds which are antagonists of orexin receptors, and which are useful in the treatment or prevention of neurological and psychiatric disorders and diseases in which orexin receptors are involved. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which orexin receptors are involved.