| 摘要 |
Piperazines of formula (I) n= 4 or 5; A = a (2-6C) alkylene bridge; and B = 2-imidazolyl or where W and Z = CH and/or N, and R1 and R2 =H, (1-4C) alkyl, (1-4C) O-alkyl, (1-4C) S-alkyl, OH, NH2, hal, CF3, (1-6C) alkyl NHCO- or (1-6C) alkyl NHSO2-, and salts of (I), are tranquillizers and anti-emetics.
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