申请人:——
公开号:US20040176407A1
公开(公告)日:2004-09-09
The invention relates to isoxazolopyridone derivatives of a formula (I-a):
1
wherein R
1a
represents an optionally-substituted heteroaryl or phenyl group, R
2a
represents an optionally-substituted phenyl or heteroaryl group, and R
3a
represents a methyl group, provided that, (1) when R
1a
is an unsubstituted phenyl group, then R
2a
must not be a para-substituted phenyl group of which the substituent is any of a methoxy group, a chloro group, a methyl group, a trifluoromethyl group, a fluoro group, a bromomethyl group or a dimethylaminomethyl group, and R
2a
must not be an unsubstituted heteroaryl group, and (2) when R
1a
is a 4-tolyl group or a 4-fluorophenyl group, then R
2a
must not be an unsubstituted phenyl group, a 4-methoxyphenyl group or a 4-fluorophenyl group, or their pharmaceutically-acceptable salts.
The isoxazolopyridone derivatives or their pharmaceutically-acceptable salts of the invention have a metabotropic glutamic acid receptor-antagonistic effect, and are useful for remedy of, for example, anxiety disorders, psychosomatic disorders, obsessive-compulsive neurosis, bipolar disorders, melancholia, eating disorders, schizophrenia, multi-infarct dementia, Alzheimer disease, epilepsy, Parkinson disease, Huntington's chorea, pain or retrograde neurosis.
本发明涉及一种式(I-a)的异噁唑吡啶酮衍生物:其中,R1代表可选取代的杂环芳基或苯基,R2代表可选取代的苯基或杂环芳基,R3代表甲基,但是当(1)R1a为未取代的苯基时,R2a不能是对位上的取代苯基,其取代基为甲氧基、氯基、甲基、三氟甲基、氟基、溴甲基或二甲氨基甲基中的任何一种,且R2a不能是未取代的杂环芳基,当(2)R1a为4-甲基苯基或4-氟苯基时,R2a不能是未取代的苯基、4-甲氧基苯基或4-氟苯基,或其药学上可接受的盐。本发明的异噁唑吡啶酮衍生物或其药学上可接受的盐具有代谢型谷氨酸受体拮抗作用,可用于治疗例如焦虑症、心身疾病、强迫症、双相障碍、忧郁症、进食障碍、精神分裂症、多发性梗塞性痴呆、阿尔茨海默病、癫痫、帕金森病、亨廷顿舞蹈症、疼痛或逆行神经病的疗法。