New synthetic approaches to CNS drugs. A straightforward, efficient synthesis of tetrahydroindol-4-ones and tetrahydroquinolin-5-ones via palladium-catalyzed oxidation of hydroxyenaminones
摘要:
We have developed a facile and efficient synthesis of new conformationally restricted butyrophenones in the indole and quinoline series via palladium-catalyzed oxidation of hydroxyenaminones, and subsequent cyclization followed by spontaneous arornatization. (C) 2002 Elsevier Science Ltd. All rights reserved.
Efficient synthesis of quinazolinones as intermediates of CNS agents via inverse-electron demand Diels–Alder reaction
作者:Estibaliz R. Bilbao、Mario Alvarado、Christian F. Masaguer、Enrique Raviña
DOI:10.1016/s0040-4039(02)00563-4
日期:2002.5
Enaminones undergo inverse electron demand Diels–Alder reaction with 1,3,5-triazine, allowing access to functionalised quinazolinones as intermediates in the synthesis of CNSagents. This reaction is highly dependent of the solvent: 1,3,5-triazine undergoes single or double [4+2] cycloadditions with enaminones, and quinazolinones or acridinediones can be selectively obtained.
Synthesis and binding affinity of new pyrazole and isoxazole derivatives as potential atypical antipsychotics
作者:María Barceló、Enrique Raviña、Christian F. Masaguer、Eduardo Domínguez、Filipe Miguel Areias、José Brea、María I. Loza
DOI:10.1016/j.bmcl.2007.06.045
日期:2007.9
We describe the synthesis and binding affinities on D(2), 5-HT(2A) and 5-HT(2C) receptors of 6-aminomethyl-6,7-dihydro-1H-indazol-4(5H)-ones and 6-aminomethyl-6,7-dihydro-3-methyl-benzo[d]isoxazol-4(5H)-ones, as conformationally constrained butyrophenone analogues. One of the new compounds showed good in vitro binding features, and a Meltzer's ratio characteristic of an atypical antipsychotic profile
Synthesis and binding affinity of potential atypical antipsychotics with the tetrahydroquinazolinone motif
作者:Laura Carro、Enrique Raviña、Eduardo Domínguez、José Brea、María I. Loza、Christian F. Masaguer
DOI:10.1016/j.bmcl.2009.09.041
日期:2009.11
A series of 8 new tetrahydroquinazolinone derivatives was synthesized and evaluated for binding affinity to D-2 and 5-HT2A human receptors; in addition, some properties related to blood-brain barrier penetration were calculated. From the results of these assays, three compounds were selected for further binding tests on D-1, D-3, and 5-HT2C human receptors, which are thought to be involved in schizophrenia. From these data, compound 19b emerged as the most promising candidate based on its good binding affinities for D-1, D-2, and D-3 receptors, high affinity for 5-HT2A, low affinity for 5-HT2C receptors, and a Meltzer's ratio characteristic of an atypical antipsychotic profile. (C) 2009 Elsevier Ltd. All rights reserved.