Synthesis and testing of novel classical cannabinoids: exploring the side chain ligand binding pocket of the CB1 and CB2 receptors
摘要:
A series of C-3 cyclic side-chain analogues of classical cannabinoids were synthesized to probe the ligand binding pocket of the CB1 and CB2 receptors. The analogues were evaluated for CB1 and CB2 receptor binding affinities relative to Delta(8)-THC. The C3 side-chain geometries of the analogues were studied using high field NMR spectroscopy and quantum mechanical calculations. The results of these studies provide insights into the geometry of the ligand binding pocket of the CB1 and CB2 receptors. (C) 2003 Elsevier Science Ltd. All rights reserved.
Mesoporous silica KIT-6 supported superparamagnetic CuFe<sub>2</sub>O<sub>4</sub> nanoparticles for catalytic asymmetric hydrosilylation of ketones in air
作者:Min Li、Bin Li、Hong-Feng Xia、Danru Ye、Jing Wu、Yifeng Shi
DOI:10.1039/c3gc42638f
日期:——
A diverse range of prochiral ketones were reduced in air with high yields and good-to-excellent enantioselectivities (up to 97% ee) in the presence of a heterogeneous catalyst system, which was in situ formed from catalytic amounts of superparamagnetic CuFe2O4 nanoparticles supported on mesoporous silica KIT-6 and non-racemic dipyridylphosphine ligand, the stoichiometric hydride donor polymethylhydrosiloxane
在非均相催化剂体系的存在下,在空气中以高收率和良好至优异的对映选择性(高达97%ee)还原了多种手性酮,该催化剂体系是由催化量的超顺磁性CuFe 2 O 4原位形成的介孔二氧化硅KIT-6和非外消旋二吡啶基膦配体,化学计量的氢化物供体聚甲基氢硅氧烷(PMHS)以及一定量的添加剂负载的纳米颗粒。磁性可分离的催化剂可以有效地重复使用4次,而活性和对映选择性均无明显损失。
Cannabinoid derivatives, methods of making, and use thereof
申请人:——
公开号:US20040242593A1
公开(公告)日:2004-12-02
1′-substituted cannabinoid derivatives of delta-8-tetrahydrocannabinol, delta-9-tetrahydrocannabinol, and delta-6a-10a-tetrahydrocannabinol that have affinity for the cannabinoid receptor type-1 (CB-1) and/or cannabinoid receptor type-2 (CB-2). Compounds having activity as either agonists or antagonists of the CB-1 and/or CB-2 receptors can be used for treating CB-1 or CB-2 mediated conditions.
Copper-dipyridylphosphine-catalyzed hydrosilylation: enantioselective synthesis of aryl- and heteroarylcycloalkyl alcohols
作者:Shan-Bin Qi、Min Li、Shijun Li、Ji-Ning Zhou、Jun-Wen Wu、Feng Yu、Xi-Chang Zhang、Albert S. C. Chan、Jing Wu
DOI:10.1039/c2ob27040d
日期:——
hydrosilylation of a vast array of aryl cycloalkyl ketones with different ring sizes was studied systematically for the first time (up to 99% enantiomeric excess). The results demonstrated that the steric size of cycloalkyl groups has a significant influence on the reaction outcomes. The first stereoselective formation of a selection of cyclohexyl heteroaryl alcohols of up to 97% enantiopurity was realized