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.
化合物式(8),无论是外消旋体还是单对映体形式,用于制备N-二苯甲基-
哌嗪类化合物,例如
西替利嗪和
左西替利嗪,其中Z优选为苯基。