已经开发了一种用于制备烷基芳基醚的稳健实用的方案,该方案依赖于使用两种类型的配体来促进 Cu 催化的(杂)芳基卤化物的烷氧基化。反应范围非常适用于各种偶联伙伴,尤其是具有挑战性的仲醇和(杂)芳基氯。在与芳基氯化物和溴化物偶联的情况下,两个草酸二酰胺作为强大的配体。叔丁醇首先被证明是铜催化偶联反应的配体,导致芳基碘化物在室温下完成烷氧基化。此外,许多碳水化合物衍生物适用于该偶联反应,以 29-98% 的产率提供相应的碳水化合物-芳基醚。
An antipruritic composition for internal and external uses and injection, comprising an antipruritically effective amount of a chelated zinc compound, e.g. zinc picolinate, and a carrier.
Aryl, Heteroaryl, and Heterocyclic Compounds for Treatment of Medical Disorders
申请人:Achillion Pharmaceuticals, Inc.
公开号:US20170066783A1
公开(公告)日:2017-03-09
Compounds, methods of use, and processes for making inhibitors of complement Factor D comprising Formula I, or a pharmaceutically acceptable salt or composition thereof wherein R
12
or R
13
on the A group is an aryl, heteroaryl or heterocycle (R
32
) are provided. The inhibitors of Factor D described herein reduce the excessive activation of complement.