PDE4 inhibition is achieved by novel compounds, e.g., N-substituted diarylamine analogs. The compounds of the present invention are of Formula I:
wherein A, B, D, R
1
, R
2
, R
3
and R
4
are as defined herein.
PDE4抑制是通过新型化合物实现的,例如N-取代二芳
胺类似物。本发明的化合物为I式:其中A、B、D、R1、R2、R3和R4如本文所定义。