The present invention is directed to pyrazolopyrimine compounds or pharmaceutically acceptable salts which are inhibitors of PDE4 isozymes, especially with a binding affinity for PDE4B isoform, and compositions thereof.
本发明涉及
吡唑嘧啶化合物或药学上可接受的盐类,它们是 PDE4 同工酶的
抑制剂,特别是对 PDE4B 同工酶具有结合亲和力,以及它们的组合物。