| 摘要 |
Certain novel benzothiazoles and benzoxazoles, e.g., 2-(piperazin-1-yl)benzothiazoles and 2-(piperazin-1-yl)benzoxazoles, optionally substituted in the 3 and/or 4 positions of the piperazine rings,! of the general formula (1): having histamine H3 antagonistic activity can be used in pharmaceutical compositions. |
