| 摘要 |
PCT No. PCT/EP97/02985 Sec. 371 Date Dec. 14, 1998 Sec. 102(e) Date Dec. 14, 1998 PCT Filed Jun. 6, 1997 PCT Pub. No. WO97/47602 PCT Pub. Date Dec. 18, 1997A compound of formula (I): wherein R1 represents a group of formula (A) or (B): R2, R3, Ar, Y Ar1 are as defined herein; or a pharmaceutically acceptable salt thereof, which has activity at dopamine receptor and is useful in the treatment of psychoses
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