NOVEL 4-(2FUROYL)AMINOPIPERIDINES, INTERMEDIATES IN SYNTHESIZING THE SAME, PROCESS FOR PRODUCING THE SAME AND MEDICINAL USE OF THE SAME
申请人:Kyorin Pharmaceutical Co., Ltd.
公开号:EP1443046A1
公开(公告)日:2004-08-04
There are provided novel 4-(2-furoyl)aminopiperidines represented by the general formula (I), their synthetic intermediates, processes for their preparation and medicaments containing them.
In the above formula, X is CH or N, and Y is a group of the following general formula (II), formula (II-a) or formula (III):
wherein
a, b and c are each an integer of 0-6;
Z is CH2 or NH;
W is O or S;
T is O or N-R15 wherein R15 is H, a C1-C6 alkyl group, a benzyl group or a phenethyl group; and
R1 is H, a C1-C6 alkoxycarbonyl group, a benzyloxycarbonyl group, or the like.
The 4-(2-furoyl) aminopiperidine derivatives according to this invention possess opioid µ antagonistic activity and are useful for the treatment or prevention of side effects which are caused by µ receptors agonist and which are selected from constipation, nausea/emesis or itch, or for the treatment or prevention of idiopathic constipation, postoperative ileus, paralytic ileus, irritable bowel syndrome or chronic pruritus.
本发明提供了由通式(I)代表的新型 4-(2-呋喃基)氨基哌啶类化合物、其合成中间体、制备工艺以及含有这些化合物的药物。
在上式中,X 是 CH 或 N,Y 是下式(II)、式(II-a)或式(III)的基团:
其中
a、b 和 c 各为 0-6 的整数;
Z 是 CH2 或 NH
W 是 O 或 S;
T 是 O 或 N-R15,其中 R15 是 H、C1-C6 烷基、苄基或苯乙基;以及
R1 是 H、C1-C6 烷氧基羰基、苄氧基羰基或类似基团。
根据本发明的 4-(2-呋喃基)氨基哌啶衍生物具有阿片μ拮抗活性,可用于治疗或预防由μ受体激动剂引起的副作用,这些副作用可选自便秘、恶心/呕吐或瘙痒,或用于治疗或预防特发性便秘、术后回肠梗阻、麻痹性回肠梗阻、肠易激综合征或慢性瘙痒。