| 摘要 |
PCT No. PCT/EP97/01611 Sec. 371 Date Sep. 30, 1998 Sec. 102(e) Date Sep. 30, 1998 PCT Filed Mar. 26, 1997 PCT Pub. No. WO97/37989 PCT Pub. Date Oct. 16, 1997Prodrugs of 5HT2C receptor antagonists of formula (I) are provided wherein the prodrug has a quaternary ammonium group, in particular quaternary pyridinium atom:
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