nitroimidazoles through visible-light-prompted direct radicalreaction with commercially available materials is described. The strategy proceeds smoothly under mild conditions to afford the fluoroalkyl nitroimidazoles under mild conditions. In addition, control experiments have been performed, revealing a radical process involved in the reaction mechanism. Preliminary evaluations on some products display
Enantjomers of 1-[(4-chlorophenyl)phenylmethyl]-4-[(4-methylphenyl) sulfonyl] piperazine
申请人:Cossement Eric
公开号:US20070142400A1
公开(公告)日:2007-06-21
The invention provides a method for the treatment of allergic conditions by administering to a patient an effective amount of dextrorotatory dihydrochloride of 2-[2-[4-[(4-chloro-phenyl)phenylmethyl]-1-piperazinyl]ethoxy]acetic acid. The treatment is conducted in the absence of levorotatory dihydrochloride of 2-[2-[4-[(4-chlorophenyl)phenylmethyl]-1-piperazinyl]ethoxy]acetic acid.
[EN] PROCESS FOR MAKING N-(DIPHENYLMETHYL)PIPERAZINES<br/>[FR] PROCÉDÉ DE FABRICATION DE N-(DIPHÉNYLMÉTHYL)PIPÉRAZINES
申请人:SYNTHON BV
公开号:WO2009065622A1
公开(公告)日:2009-05-28
The compound of formula (8), in racemic or single enantiomeric form, is useful in making N-(diphenylmethyl)-piperazines such as cetirizine and levocetrizine, wherein Z is preferably phenyl.
[EN] PROCESSES FOR PREPARING LEVOCETIRIZINE AND PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF<br/>[FR] PROCÉDÉS DE PRÉPARATION DE LÉVOCÉTIRIZINE ET DE SES SELS PHARMACEUTIQUEMENT ACCEPTABLES
申请人:REDDYS LAB LTD DR
公开号:WO2009062036A2
公开(公告)日:2009-05-14
Processes for preparing levocetirizine dihydrochloride.