申请人:Nippon Kayaku Kabushiki Kaisha
公开号:US05296492A1
公开(公告)日:1994-03-22
A chroman derivative represented by the following general formula [1]: ##STR1## wherein R.sub.1 represents cyano group, nitro group, halogenomethyl group or --SO.sub.2 --X group (X represents lower alkyl group having 1-6 carbon atoms or aryl group); R.sub.2 represents hydrogen atom or OA group (A represents hydrogen atom, nitro group, lower acyl group having 1-6 carbon atoms, arylcarbonyl group, lower alkylsulfonyl group having 1-6 carbon atoms, arylsulfonyl group, arylalkyl group, tetrahydropyranyl group, lower alkoxycarbonyl group having 1-6 carbon atoms, arylalkoxycarbonyl group or silyl derivative group); R.sub.3 singly represents a hydrogen atom; or R.sub.3 forms a bond jointly with R.sub.2 ; and R.sub.4, R.sub.5, R.sub.6 and R.sub.7 each represent hydrogen atom, vinyl group, formyl group, --Y--(OA).sub.n group (Y represents straight or branched chain alkylene group having 1-6 carbon atoms or lower alkenyl group having 1-6 carbon atoms, A is as defined above, and n represents an integer of 1-3. The compound of this invention is expected to be effectively usable as an agent for treatment of various symptoms due to the contraction of smooth muscles, for treatment of the diseases of the circulatory system and for treatment of epilepsy.
以下是通用公式[1]表示的一种色酮衍生物:##STR1##其中R.sub.1代表氰基、硝基、卤代甲基基团或--SO.sub.2--X基团(X代表具有1-6个碳原子的较低烷基基团或芳基团);R.sub.2代表氢原子或OA基团(A代表氢原子、硝基、具有1-6个碳原子的较低酰基基团、芳基羰基基团、具有1-6个碳原子的较低烷基磺酰基团、芳基磺酰基团、芳基烷基基团、四氢吡喃基团、具有1-6个碳原子的较低烷氧羰基团、芳基烷氧羰基团或硅基衍生物基团);R.sub.3单独代表氢原子;或R.sub.3与R.sub.2共同形成键;而R.sub.4、R.sub.5、R.sub.6和R.sub.7分别代表氢原子、乙烯基、甲酰基、--Y--(OA).sub.n基团(Y代表具有1-6个碳原子的直链或支链烷基基团或具有1-6个碳原子的较低烯基基团,A如上定义,n代表1-3的整数)。本发明的化合物预计可有效用作治疗由于平滑肌收缩引起的各种症状的药剂,治疗循环系统疾病和治疗癫痫。