作者:Hiroshi Ochiai、Akiharu Ishida、Tazumi Ohtani、Kensuke Kusumi、Katuya Kishikawa、Susumu Yamamoto、Hiroshi Takeda、Takaaki Obata、Hisao Nakai、Masaaki Toda
DOI:10.1016/j.bmc.2004.05.032
日期:2004.8.1
The design synthesis, and biological evaluation of a series of pyrazolopyridines was carried out. Structural optimization of the aniline moiety of 4-anilinopyrazolopyridinc derivative 3a, which is one of the newly discovered chemical leads for PDE4 inhibitors from our in-house library, was performed successfully. The details of the discovery of new orally active PDE4 inhibitors, which are expected to show therapeutic potential, are presented and their structure-activity relationships are discussed. Pharmacological evaluation and pharmacokinetic data for representative compounds are also presented. (C) 2004 Elsevier Ltd. All rights reserved.