申请人:YAMANOUCHI PHARMACEUTICAL CO. LTD.
公开号:EP0555480A1
公开(公告)日:1993-08-18
A novel thiazole derivative represented by general formula (I), which has a selective agonistic activity for 5-HT₃ receptor, a pharmaceutical composition thereof, and a process for producing the same. In the said formula, R¹ represents hydrogen or lower alkoxy; R² and R³ are such that R² represents hydrogen and R³ represents a group, -Y-Het, wherein Y represents a single bond or lower alkylene and Het represents a nitrogenous heterocyclic group, or alternatively R² and R³ are combined together to form a group, -(CH₂)m-NR⁴-(CH₂)n-, wherein m and n are each 1 or 2 and R⁴ represents lower alkyl; and X represents -NH-, -NHC(=O)NH-, -C(=O)NH- or -NHC(=O)-.
一种由通式(I)表示的新型噻唑衍生物,它对 5-HT₃ 受体具有选择性激动活性;一种其药物组合物;以及生产该衍生物的工艺。在上述通式中,R¹代表氢或低级烷氧基;R²和R³是这样的:R²代表氢,R³代表基团-Y-Het,其中Y代表单键或低级亚烷基,Het代表含氮杂环基团,或者R²和R³组合在一起形成基团-(CH₂)m-NR⁴-(CH₂)n-,其中m和n各自为1或2,R⁴代表低级烷基;X 代表-NH-、-NHC(=O)NH-、-C(=O)NH- 或-NHC(=O)-。