The present invention is concerned with compounds of formula (I) ##STR1## wherein R, R.sup.1 and R.sup.2 are independently selected from hydrogen and C.sub.1-4 alkyl; R.sup.3 and R.sup.4 are independently selected from hydrogen, C.sub.1-6 alkyl (including cycloalkyl) and aryl (wherein the alkyl or aryl group, which latter includes benzyl, is optionally substituted by one or more atoms or groups independently selected from halogen, C.sub.1-4 alkyl and aryl), provided R.sup.3 benzyl or substituted benzyl when R.sup.4 =H; m is an integer of from 0 to 2; n is an integer of from 0 to 3; (W) is a group of formula (i), (ii), (iii), or (iv) ##STR2## wherein Y is selected from oxygen, methylene and >N--R.sup.5, where R.sup.5 is hydrogen, C.sub.1-4 alkyl, or benzyl, Z and Z' are independently selected from >C.dbd.O, >C.dbd.S and methylene, and the chiral center * in formula (i) or (ii) is in its (S) or (R) form or is a mixture thereof in any proportions; X is a group selected from aryl (including heteroaryl) xanthenyl dibenzofuranyl which group is optionally substituted; and salts and solvates thereof, the preparation of these compounds, pharmaceutical formulations containing them and their use in medicine, particularly in the treatment of migraine.
本发明涉及式(I)的化合物:##STR1## 其中R、R.sup.1和R.sup.2分别独立选择氢和C.sub.1-4烷基;R.sup.3和R.sup.4分别独立选择氢、C.sub.1-6烷基(包括环烷基)和芳基(其中烷基或芳基基团,后者包括苄基,可选地被一个或多个原子或基团独立选择从卤素、C.sub.1-4烷基和芳基中取出),当R.sup.4 = H时,R.sup.3为苄基或取代苄基;m为0至2的整数;n为0至3的整数;(W)是式(i)、(ii)、(iii)或(iv)的基团:##STR2## 其中Y选择氧、亚甲基和> N-R.sup.5,其中R.sup.5为氢、C.sub.1-4烷基或苄基,Z和Z'分别独立选择> C.dbd.O、> C.dbd.S和亚甲基,在式(i)或(ii)中的手性中心*为其(S)或(R)形式或在任何比例下为其混合物;X是选择的基团,包括杂环芳基、
黄酮基、
二苯并呋喃基,该基团可选地被取代;以及它们的盐和溶剂化合物,制备这些化合物,含有它们的制药组合物以及它们在医学上的用途,特别是在治疗偏头痛方面。