Anti‐Markovnikov Hydroamination and Hydroalkoxylation of Allylic Alcohols Promoted by a Simple Rare‐Earth Metal Trialkyl Complex
作者:Xiancui Zhu、Jinrong Sun、Zhixin Wu、Dianjun Guo、Shuangliu Zhou、Shaowu Wang
DOI:10.1002/adsc.202301142
日期:2024.3.19
hydroalkoxylation of allylic alcohols catalyzed by a simple catalyst Y(CH2SiMe3)3(THF)2 has been developed, providing a variety of γ-amino and γ-alkoxy alcohols in good yields under mild conditions. Moreover, this protocol is applied to the synthesis of drug molecules Propipocaine and Proroxan. The rare-earth catalyst features readily available, wide substrate compatability, exclusive anti-Markovnikov selectivity
Synthesis and biological evaluation of (phenylpiperazinyl-propyl)arylsulfonamides as selective 5-HT2A receptor antagonists
作者:Euna Yoo、Juhee Yoon、Ae Nim Pae、Hyewhon Rhim、Woo-Kyu Park、Jae Yang Kong、Hea-Young Park Choo
DOI:10.1016/j.bmc.2009.12.067
日期:2010.2
A novel series of 5-HT2A ligands that contain a (phenylpiperazinyl-propyl)arylsulfonamides skeleton was synthesized. Thirty-seven N-(cycloalkylmethyl)-4-methoxy-N-(3-(4-arylpiperazin-1-yl)propyl)arylsulfonamide and N-(4-(4-arylpiperazin-1-yl)butan-2-yl)-arylsulfonamide compounds were obtained. The binding of these compounds to the 5-HT2A, 5-HT2C, and 5-HT7 receptors was evaluated. Most of the compounds showed IC50 values of less than 100 nM and exhibited high selectivity for the 5-HT2A receptor. Among the synthesized compounds, 16a and 16d showed good affinity at 5-HT2A (IC50 = 0.7 nM and 0.5 nM) and good selectivity over 5-HT2C (50-100 times) and 5-HT7 (1500-3000 times). (C) 2010 Elsevier Ltd. All rights reserved.