The present invention relates to novel substituted [2-(1-piperazinyl)-ethoxy]methyl compounds of formula
in which
R1 represents a —CONH2, —CN, —COOH, —COOM or —COOR3 group, M being an alkali metal and R3 being an alkyl radical having from 1 to 4 carbon atoms; and
R2 represents a hydrogen atom or a group —COR4 or —R5, where R4 is chosen from the groups —OR6 l or —R7, in which
R5 represents an alkyl or alkylaryl radical,
R6 represents a linear or branched alkyl radical having from 1 to 4 carbon atoms, a haloalkyl, alkylaryl, alkylnitroaryl or alkylhaloaryl radical, and
R7 represents a haloalkyl radical,
to a process for the preparation of these compounds, and to their use for the preparation of compounds which are themselves valuable intermediates for the preparation of 2-[2-[4[(4-chlorophenyl)phenylmethyl]-1-piperazinyl]ethoxy]-acetic acid or 2-[2-[4-[bix(4-fluorophenyl)methyl]-1-piperazinyl]ethoxy]-acetic acid and/or pharmaceutically acceptable salts thereof.
本发明涉及一种新型取代的[2-(1-
哌嗪基)-乙氧基]甲基化合物,其
化学式如下:其中,R1代表—CONH2、—CN、—COOH、—COOM或—COOR3基团,M为碱
金属,R3为具有1至4个碳原子的烷基基团;R2代表氢原子或—COR4或—R5基团,其中R4选自—OR6或—R7基团,R5代表烷基或烷基芳基基团,R6代表具有1至4个碳原子的线性或支链烷基基团、卤代烷基、烷基芳基、烷基硝基芳基或烷基卤代芳基基团,R7代表卤代烷基基团。本发明还涉及一种制备这些化合物的方法,并将其用于制备2-[2-[4[(4-
氯苯基)苯基甲基]-1-
哌嗪基]乙氧基]-
乙酸或2-[2-[4-[双(4-
氟苯基)甲基]-1-
哌嗪基]乙氧基]-
乙酸及/或其药学上可接受的盐的化合物,这些化合物本身是有价值的中间体。