申请人:Pfizer Inc
公开号:US06211222B1
公开(公告)日:2001-04-03
The invention relates to compounds of the formula I
and pharmaceutically acceptable salts thereof, wherein
R2a and R2b are independently selected from the group consisting essentially of hydrogen and hereinafter recited substituents, provided that one, but not both of R2a and R2b must be independently selected as hydrogen, wherein said substituents comprise:
wherein the dashed lines in formulas (Ia) and (Ib) independently and optionally represent a single or double bond, provided that in formula (Ia) both dashed lines cannot both represent double bonds at the same time; and
R, R1, R3, R4, R5, R6, R7, R18 and m are as defined. The invention further relates to intermediates for the preparation of the compounds of formula I, and to pharmaceutical compositions containing, and methods of using, the compounds of formula I, or acceptable salts thereof, for the inhibition of phosphodiesterase (PDE) type IV or the production of tumor necrosis factor (TNF) in a mammal.
本发明涉及式I化合物及其药学上可接受的盐,其中R2a和R2b各自独立地选自基本上由氢和以下所述的取代基组成的组,条件是R2a和R2b中仅有一个,而非两者,必须独立地选为氢,所述取代基包括:式(Ia)和(Ib)中的虚线各自独立地且可选择地表示单键或双键,条件是在式(Ia)中,两条虚线不能同时都表示双键;并且R、R1、R3、R4、R5、R6、R7、R18和m如定义所述。本发明还涉及用于制备式I化合物的中间体,以及含有式I化合物或其可接受的盐的药物组合物,以及使用这些化合物或其可接受的盐来抑制哺乳动物中的磷酸二酯酶(PDE)IV型或肿瘤坏死因子(TNF)产生的方法。