OPTICALLY ACTIVE CARBAMATES, PROCESS FOR PREPARATION THEREOF AND USE THEREOF AS PHARMACEUTICAL INTERMEDIATES
申请人:Mezei Tibor
公开号:US20090221823A1
公开(公告)日:2009-09-03
The present invention is related to 1-[(4-chlorophenyl)-phenylmethyl]-4-(2,2,2-trichloroethoxycarbonyl)-piperazine of the Formula (IV) and optically isomers thereof, process for preparation thereof and the use of the compound of the Formula (IV) in the preparation of 1-(4-chlorophenyl)-phenylmethyl-piperazine and optical isomers and salts thereof. 1-(4-chlorophenyl)-phenylmethyl-piperazine and optical isomers thereof are important intermediates in the preparation of non-sedating antihistamine-type active pharmaceutical ingredients.
[EN] OPTICALLY ACTIVE CARBAMATES, PROCESS FOR PREPARATION THEREOF AND USE THEREOF AS PHARMACEUTICAL INTERMEDIATES<br/>[FR] CARBAMATES OPTIQUEMENT ACTIFS, LEUR PROCEDE DE PREPARATION ET LEUR UTILISATION EN TANT QU'INTERMEDIAIRES PHARMACEUTIQUES
申请人:EGIS GYOGYSZERGYAR NYRT
公开号:WO2007066163A2
公开(公告)日:2007-06-14
[EN] The present invention is related to l-[(4-chlorophenyl)-phenylmethyl]-4-(2,2,2-trichloroethoxycarbonyl)-piperazine of the Formula (IV) and optically isomers thereof, process for preparation thereof and the use of the compound of the Formula (IV) in the preparation of l-(4-chlorophenyl)-phenylmethyl-piperazine and optical isomers and salts thereof. l-(4-chlorophenyl)-phenylmethyl-piperazine and optical isomers thereof are important intermediates in the preparation of non-sedating antihistamine-type active pharmaceutical ingredients. [FR] La présente invention concerne la 1-[(4-chlorophényl)-phénylméthyl]-4-(2,2,2-trichloroéthoxy carbonyl)-pipérazine de formule (IV) et ses isomères optiques, son procédé de préparation et l'utilisation du composé de formule (IV) dans la préparation de la 1-(4-chlorophényl)-phénylméthyl-pipérazine et de ses isomères optiques et de ses sels. La 1-(4-chlorophényl)-phénylméthyl-pipérazine et ses isomères optiques sont des intermédiaires importants dans la préparation d'ingrédients pharmaceutiquement actifs de type anti-histamine non sédatifs.
Synthesis and Anticonvulsant Activity of New N-Mannich Bases Derived from 5-Cyclopropyl-5-phenyl-hydantoins
Synthesis, physicochemical and anticonvulsantproperties of new N‐Mannichbases 3–24 derivedfrom 5‐cyclopropyl‐5‐phenyl‐ and 5‐cyclopropyl‐5‐(4‐chlorophenyl)‐hydantoins were described here. Initial anticonvulsant screening was performed using intraperitoneal (i.p.) maximal electroshock (MES) and subcutaneous pentylenetetrazole (scPTZ) seizures tests. Selected derivatives were also screened in the