(+)-2-[1-(2,6-Dichlorophenoxy)-ethyl]-1,3-diazacyclopent-2-ene and the
申请人:A. Nattermann & Cie GmbH
公开号:US04443464A1
公开(公告)日:1984-04-17
This invention relates to (+)-2-[1-(2,6-dichlorophenoxy)-ethyl]-1,3-diazacyclopent-2-ene and to pharmaceutically acceptable acid addition salts thereof and the method for the treatment of human beings suffering from nervous disarrangements, in particular migraine, using these compounds.
This invention relates to processes for producing the (-)-2-[1-(2,6-dichlorophenoxy)-ethyl]-1,3-diazacyclopent-2-ene and to pharmaceutically acceptable acid addition salts thereof and the method for lowering the blood pressure in human beings suffering from increased blood pressure, using these compounds.
A Scalable, Enantioselective Synthesis of the α<sub>2</sub>-Adrenergic Agonist, Lofexidine
作者:Ashish P. Vartak、Peter A. Crooks
DOI:10.1021/op8002689
日期:2009.5.15
A scalable and high-yielding synthetic route toward pure enantiomers of the alpha(2)-adrenergic agonist, lofexidine hydrochloride, is presented. Salient features include a rapid one-pot amide alkylation-imidazoline formation sequence on the carboxamide function of alpha-(2,6-dichlorophenoxy)propionamide, while preserving the sensitive configuration about the alpha-carbon of the resulting product. A means to accelerate the sluggish O-alkylation of the carboxamide function of alpha-(2,6-dichlorophenoxy)propionamide by Me3O+BF4- is also described, which may be of general applicabitity.
Verfahren zur Herstellung von (-)-2-(1-(2,6-Dichlorphenoxy)-ethyl)-1,3-diazacyclopent-2-en
申请人:A. Nattermann & Cie. GmbH
公开号:EP0081748B1
公开(公告)日:1987-02-25
(+)-2-(1-(2,6-Dichlorphenoxy)-ethy1)-1,3-diazacyclopent-2-en, dessen Herstellung und seine Verwendung in pharmazeutischen Präparaten