申请人:DUPHAR INTERNATIONAL RESEARCH B.V
公开号:EP0410509A1
公开(公告)日:1991-01-30
The present invention is concerned with compounds of formula 1:
wherein
R₁ is straight or branched alkyl having 1-4 C-atoms, halogen or cyano;
n has the value 0-1;
R₂ is hydrogen, (1-6 C)alkyl, (3-6 C)alkenyl, (3-6 C)alkenyl, (3-6 C)cycloalkyl, (3-6 C)cycloalkyl(1-4 C)alkyl, phenyl, phenyl-(1-3 C)alkyl, COOR₆, COR₆, CONR₆R₇ or SO₂-R₆, wherein R₆ and R₇ independently of each other are hydrogen, (1-6 C)alkyl, (3-6 C)cycloalkyl, phenyl or phenyl-(1-4 C)alkyl, wherein the benzene ring is optionally substituted with a methyl group or a halogen atom, with the proviso that R₆ is not hydrogen when R₂ is a group COOR₆ or SO₂R₆;
R₃ is hydrogen, straight or branched (1-6 C)alkyl or a phenyl-(1-3 C)alkyl group optionally substituted in the benzene ring; and
A is a group of formula 2 or 3
wherein one of the groups R₈, R₉ and R₁₀ is hydrogen, (1-4 C)alkyl, (3-6 C)cycloalkyl, (3-4 C)alkenyl or (3-4 C)alkynyl and the two other groups, independently of each other, are hydrogen or (1-4 C)alkyl, and the pharmacologically acceptable acid addition salts thereof, which are pharmaceutically useful as strong and selective antagonists of "neuronal" 5-hydroxy tryptamine (5-HT) receptors.
本发明涉及式 1 的化合物:
其中
R₁ 是具有 1-4 个 C 原子的直链或支链烷基、卤素或氰基;
n 的值为 0-1;
R₂ 是氢、(1-6 C)烷基、(3-6 C)烯基、(3-6 C)炔基、(3-6 C)环烷基、(3-6 C)环烷基(1-4 C)烷基、苯基、苯基-(1-3 C)烷基、COOR₆、COR₆、CONR₆R₇ 或 SO₂-R₆,其中 R₆ 和 R₇ 相互独立地均为氢、(1-6 C)烷基、(3-6 C)环烷基、苯基或苯基-(1-4 C)烷基,其中苯环任选被甲基或卤原子取代,但当 R₂ 是 COOR₆ 或 SO₂R₆ 基团时,R₆ 不是氢;
R₃ 是氢、直链或支链(1-6 C)烷基或在苯环上被任选取代的苯基-(1-3 C)烷基;以及
A 是式 2 或 3 的基团
其中基团 R₈、R₉ 和 R₁₀ 之一为氢、(1-4 C)烷基、(3-6 C)环烷基、(3-4 C)烯基或(3-4 C)炔基,另外两个基团相互独立地为氢或(1-4 C)烷基、及其药理上可接受的酸加成盐,它们在药学上可作为 "神经元 "5-羟色胺(5-HT)受体的强效选择性拮抗剂。