位点选择性功能化反应的进步使得复杂分子外围的单个原子发生变化,但在分子核心框架上实现这种变化的反应流形仍然稀疏。在这里,我们公开了一种在环状二芳基甲烷和二芳基酮中碳氧取代以产生环状二芳基醚的策略。氧原子插入是通过亚甲基和拜尔-维利格氧化完成的。为了去除这种 C 到 O“原子交换”过程中的碳原子,我们开发了一种镍催化的内酯脱羰基反应,以产生相应的环状二芳基醚。该反应是通过化学计量镍 ( II ) 络合物的机理研究实现的,从而优化了能够促进具有挑战性的 C(sp 2 )–O(芳基) 还原消除的配体。镍催化脱羰作用适用于 6-8 元内酯(16 个实例,32-99%)。最后,在天然产物和药物前体上完成了 C 到 O 原子交换反应序列。
Methods for Treating Cognitive Disorders Using Inhibitors of Histone Deacetylase
申请人:Forum Pharmaceuticals, Inc.
公开号:US20170000749A1
公开(公告)日:2017-01-05
This disclosure relates to compounds for the inhibition of histone deacetylase and treatment of a cognitive disorder or deficit. More particularly, the disclosure provides for compounds of formula (I)
wherein
Q, J, L and Z are as defined in the specification.
Ligand-Controlled Chemoselective One-Pot Synthesis of Dibenzothiazepinones and Dibenzoxazepinones via Twice Copper-Catalyzed Cross-Coupling
作者:Yanyu Chen、Qiujun Peng、Rong Zhang、Jian Hu、Yijun Zhou、Lanting Xu、Xianhua Pan
DOI:10.1055/s-0036-1558959
日期:2017.6
from 2-bromobenzamides and 2-bromo(thio)phenols via twice copper-catalyzed couplings to afford dibenzothiazepines and dibenzoxazepinones has been developed. High levels of yield and chemoselectivity are achieved in a single-pot reaction by using an appropriate ligand. Moreover, this facile methodology allows rapid access to a variety of bioactive compounds and known psychotropic drug, which should
This invention relates to compounds for the inhibition of histone deacetylase. More particularly, the invention provides for compounds of formula (I)
wherein
Q, J, L and Z are as defined in the specification.
Compounds of structural formula (I) where A is a lipophilic group including an aliphatic bridging group, B is a lipophilic group, D is a group having at least one amino or substituted amino group and R is hydrogen, alkyl or cycloalkyl, and pharmaceutically acceptable salts and individual isomers thereof, which have growth hormone releasing activity in humans or animals.