ARYLPIPERAZINE MODULATORS OF D2 RECEPTORS, 5-HT1A RECEPTORS, AND/OR 5-HT2A RECEPTORS
申请人:Gant Thomas G.
公开号:US20100069399A1
公开(公告)日:2010-03-18
The present invention relates to new arylpiperazine modulators of D2 receptors, 5-HT1A receptors, and/or 5-HT2A receptors, pharmaceutical compositions thereof, and methods of use thereof.
Efficient synthesis of deuterium labeled hydroxyzine and aripiprazole
作者:Mohit Vohra、Mahendra Sandbhor、Andrew Wozniak
DOI:10.1002/jlcr.3298
日期:2015.6.15
Hydroxyzine and aripiprazole are active pharmaceutical ingredients that have been largely acknowledged for their antipsychotic properties. Deuterium labeled isotopes of hydroxyzine and aripiprazole are internal standards that can aid in the further research of non-isotopic forms via quantification analysis using HPLC-MS/MS. The synthesis of hydroxyzine-d8 was accomplished by coupling piperazine-d8 with 4-chlorobenzhydryl chloride followed by the reaction of the first intermediate with 2-(2-chloroethoxy) ethanol to afford 11.7% of hydroxyzine-d8 with 99.5% purity. The synthesis of aripiprazole-d8 was also achieved in two steps. 1,4-Dibromobutane-d8 reacted with 7-hydroxy-3,4-dihydro-2(1H)-quinolinone. The first intermediate was then coupled with 1-(2, 3-dichlorophenyl)piperazine hydrochloride to produce 33.4% of aripiprazole-d8 with 99.93% purity.