The present invention relates compounds of the formula (I):
1
wherein
R
1a
, R
1b
; and R
2
represent a variety of substituents;
R
3
represents an optionally substituted phenyl, biphenyl or naphthyl or heteroaryl group;
R
4
represents hydrogen, C
1-6
alkyl, carbonyl (=O), (CH
2
)
p
phenyl or a
C
1-2
alkylene bridge across the piperidine ring;
R
5
and R
6
each independently represent a variety of substituents; or
R
5
and R
6
together are linked so as to form an optionally substituted 5-or 6-membered ring;
X represents an oxygen or a sulfur atom, two hydrogen atoms, ═NH or ═N(C
1-6
alkyl);
Y is a straight or branched C
1-4
alkylene, C
2-4
alkenylene or C
2-4
alkynylene chain;
the dotted line represents an optional double bond;
m is zero or an integer from 1 to 4; n is an integer from 1 to 4; and p is an integer from 1 to 4;
or a pharmaceutically acceptable salt thereof.
The compounds are of particular use in the treatment or prevention of depression, anxiety, pain, inflammation, migaine, emesis or postherpetic neuralgia.
本发明涉及公式(I)的化合物:其中R1a,R1b和R2表示各种取代基;R3表示可选取代的苯基,
联苯基或
萘基或杂环芳基;R4表示氢,C1-6烷基,羰基(=O),(
CH2)pphenyl或C1-2烷基桥接到
哌啶环上;R5和R6各自独立地表示各种取代基;或R5和R6连在一起形成可选取代的5或6元环;X表示氧或
硫原子,两个氢原子,═NH或═N(C1-6烷基);Y是直链或支链C1-4烷基,C2-4烯基或C2-4炔基链;虚线表示可选的双键;m为零或1到4的整数;n为1到4的整数;p为1到4的整数;或其药学上可接受的盐。该化合物特别适用于治疗或预防抑郁症、焦虑症、疼痛、炎症、偏头痛、呕吐或带状疱疹后神经痛。