氟化环己烷衍生物的生产是通过在分子改性的二氧化硅载体(Rh @ Si–R)上作为高效且可回收的催化剂,使用Rh纳米粒子对易得的氟化芳烃进行选择性氢化来完成的。催化剂制备包括将非极性分子实体接枝在SiO 2表面上,从而产生疏水性环境,以控制从简单的有机金属前体中沉淀出明确的铑颗粒。各种氟化环己烷衍生物被证明具有出色的功效(0.05–0.5 mol%Rh,10–55 bar H 2,80–100°C,1-2小时),包括与工业相关的构建基块。添加CaO作为痕量HF的清除剂可大大提高催化体系的可回收性,并防止与HF存在相关的风险,而不会影响反应的活性和选择性。
Compounds, methods of use, and processes for making inhibitors of complement Factor D comprising Formula I, or a pharmaceutically acceptable salt or composition thereof. The inhibitors described herein target Factor D and inhibit or regulate the complement cascade. The inhibitors of Factor D described herein reduce the excessive activation of complement.
Amide Compounds for Treatment of Medical Disorders
申请人:Achillion Pharmaceuticals, Inc.
公开号:US20170057950A1
公开(公告)日:2017-03-02
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 amide substituent (R
32
) are provided. The inhibitors described herein target Factor D and inhibit or regulate the complement cascade. The inhibitors of Factor D described herein are capable of reducing the excessive activation of complement.
Ether Compounds for Treatment of Medical Disorders
申请人:Achillion Pharmaceuticals, Inc.
公开号:US20170057993A1
公开(公告)日:2017-03-02
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 ether substituent (R
32
) are provided. The inhibitors described herein target Factor D and inhibit or regulate the complement cascade. The inhibitors of Factor D described herein reduce the excessive activation of complement.
Phosphonate Compounds for Treatment of Medical Disorders
申请人:Achillion Pharmaceuticals, Inc.
公开号:US20170057983A1
公开(公告)日:2017-03-02
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 a phosphonate substituent (R
32
) are provided. The inhibitors described herein target Factor D and inhibit or regulate the complement cascade. The inhibitors of Factor D described herein reduces the excessive activation of complement.
Selective hydrogenation of fluorinated arenes using rhodium nanoparticles on molecularly modified silica
arenes using Rh nanoparticles on molecularly modified silica supports (Rh@Si–R) as highly effective and recyclable catalysts. The catalystpreparation comprises grafting non-polar molecular entities on the SiO2 surface generating a hydrophobic environment for controlled deposition of well-defined rhodium particles from a simple organometallic precursor. A broad range of fluorinated cyclohexane derivatives
氟化环己烷衍生物的生产是通过在分子改性的二氧化硅载体(Rh @ Si–R)上作为高效且可回收的催化剂,使用Rh纳米粒子对易得的氟化芳烃进行选择性氢化来完成的。催化剂制备包括将非极性分子实体接枝在SiO 2表面上,从而产生疏水性环境,以控制从简单的有机金属前体中沉淀出明确的铑颗粒。各种氟化环己烷衍生物被证明具有出色的功效(0.05–0.5 mol%Rh,10–55 bar H 2,80–100°C,1-2小时),包括与工业相关的构建基块。添加CaO作为痕量HF的清除剂可大大提高催化体系的可回收性,并防止与HF存在相关的风险,而不会影响反应的活性和选择性。