The present invention relates to compounds of formula I
wherein
R1 is selected from the group consisting of hydrogen and lower alkyl;
each R2 is independently selected from the group consisting of hydrogen and lower alkyl;
each R3 is independently selected from the group consisting of hydrogen, lower alkyl, lower alkoxy, phenyloxy, benzyloxy, halogen and lower alkyl substituted by halogen;
X is selected from the group consisting of —CH2—, —CH— and —O—;
Y is selected from the group consisting of —CH2—, —CH— and a bond with the proviso that, when X is —O—, Y may not be a bond;
Z is selected from the group consisting of —CH2— and —CH—;
m is 0, 1 or 2; and
n is 0, 1 or 2;
and to pharmaceutically-acceptable acid addition salts of such compounds.
The invention relates also to processes for preparing such compounds, compositions comprising such a compound or a pharmaceutically-acceptable acid addition salt thereof, and a method of treating a disease or disorder in a patient comprising administering such a compound, or pharmaceutically-acceptable acid addition salt thereof, to a patient in need of such treatment.
本发明涉及式I的化合物,其中R1选自氢和较低的烷基组;每个R2独立地选自氢和较低的烷基组;每个R3独立地选自氢、较低的烷基、较低的烷氧基、苯氧基、苄氧基、卤素和被卤素取代的较低烷基;X选自-
CH2-、-CH-和-O-组;Y选自- -、-CH-和键,但当X为-O-时,Y不能是键;Z选自- -和-CH-组;m为0、1或2;n为0、1或2;以及这些化合物的药学可接受的酸加盐。本发明还涉及制备这些化合物的方法,包含这样的化合物或其药学可接受的酸加盐的组合物,以及通过向需要此类治疗的患者施用这种化合物或其药学可接受的酸加盐来治疗患病或障碍的方法。