申请人:OTSUKA PHARMACEUTICAL CO., LTD.
公开号:EP0226441A2
公开(公告)日:1987-06-24
In the preparation of a pharmaceutical compositions to the treatment of hypoxia there is used, as active ingredient, a compound of the formula:
in which R' is a hydrogen atom or a lower alkyl, lower alkenyl, lower alkynyl or phenyl-lower alkyl group.
Z is a group of the formula
(in which R2 is a hydrogen atom or a lower alkyl group; and the bond is a single or double bond), a group -(CH2)3-, -O-CH2- or -S-CH2-;
R3 is a pyridyl group, or a phenyl group optionally substituted with up to three substituents selected from halogen atoms and lower alkyl, lower alkoxy and hydroxy groups:
the group
is a group
and A is a lower alkylene group;
provided that when the group
is a group
then Z is a group of the formula
and R3 is neither a pyridyl group nor a phenyl group having a hydroxy group as the substituent; or provided that when R3 is a pyridyl group, then Z is a group of the formula
在制备治疗缺氧症的药物组合物时,使用式中的化合物作为活性成分:
其中 R'是氢原子或低级烷基、低级烯基、低级炔基或苯基-低级烷基。
Z 是式中的一个基团
(其中 R2 为氢原子或低级烷基;键为单键或双键)、基团-(CH2)3-、-O-CH2-或-S-CH2-;
R3 是吡啶基,或最多可被三个取代基取代的苯基,这三个取代基可选 自卤素原子、低级烷基、低级烷氧基和羟基:
该基团
是一个基团
且 A 为低级亚烷基;
但当该基团
是一个基团
则 Z 是式中的一个基团
且 R3 既非吡啶基,也非以羟基为取代基的苯基;或当 R3 为吡啶基时,则 Z 为式中的基团