This invention relates to N-aroyl piperazine derivatives of formula (I), wherein: Y represents NR
2
; m represents 1, 2 or 3; p represents 0 or 1; X is O, S, C═O, SO
2
, or CH═CH—; Ar
1
is aryl, or a mono or bicyclic heteroaryl group containing up to 4 heteroatoms selected from N, O and S; any of which may be optionally substituted; Ar
2
represents phenyl or a 5- or 6-membered heterocyclyl group containing 1 to 3 heteroatoms selected from N, O and S, wherein the phenyl heterocyclyl group is substituted by R
1
and further optional substituents; or Ar
2
represents an optionally substituted bicyclic aromatic or bicyclic heteroaromatic group containing 1 to 4 heteroatoms selected from N, O and S; R
1
represents optionally substituted (C
1-4
)alkoxy, halo, optionally substituted (C
1-6
)alkyl, optionally substituted phenyl, or an optionally substituted 5- or 6-membered heterocyclic ring containing 1 to 4 heteroatoms selected from N, O and S; R?2
represents hydrogen, optionally substituted (C
1-4
)alkyl, optionally substituted (C
1-6
)alkanoyl, optionally subtituted (C
1-6
)alkanoxycarbonyl or optionally substituted aryl(C
1-6
)alkyloxycarbonyl; and their use as orexin receptor-antagonists.
本发明涉及式(I)的 N-芳酰基
哌嗪衍
生物,其中:Y 代表 NR
2
m代表1、2或3;p代表0或1;X是O、S、C═O、SO
2
或 CH═CH-; Ar
1
是芳基,或含有最多 4 个选自 N、O 和 S 的杂原子的单环或双环杂芳基,其中任一杂芳基可被任选取代;Ar
2
代表苯基或含有 1 至 3 个选自 N、O 和 S 的杂原子的 5 元或 6 元杂环基团,其中苯基杂环基团被 R
1
和其他任选取代基取代;或 Ar
2
代表含有 1 至 4 个选自 N、O 和 S 的杂原子的任选取代的双环芳香族或双环杂芳香族基团; R
1
代表任选取代的(C
1-4
烷氧基、卤代、任选取代的(C
1-6
烷基、任选取代的苯基或任选取代的含有 1 至 4 个选自 N、O 和 S 的杂原子的 5 或 6 元杂环; R?2
代表氢、任选取代的 (C
1-4
烷基、任选取代的 (C
1-6
)烷酰基、任选取代的(C 1-6)
1-6
)烷氧羰基或任选取代的芳基(C
1-6
烷氧基羰基;以及它们作为
奥曲肽受体拮抗剂的用途。