Novel Antiasthmatic Agents with Dual Activities of Thromboxane A2 Synthetase Inhibition and Bronchodilation. IV. 2-(2-(1-Imidazolyl)ethyl)-4-(3-pyridyl)-1(2H)-phthalazinones.
作者:Masahisa YAMAGUCHI、Takaki KOGA、Kenshi KAMEI、Michitaka AKIMA、Noriaki MARUYAMA、Toshio KUROKI、Masatomo HAMANA、Nobuhiro OHI
DOI:10.1248/cpb.42.1850
日期:——
Synthesis and pharmacologicalevaluation of several compoundsrelated to 2-[2-(1-imidazolyl)ethyl]-4-(3-pyridyl)-1(2H)-phthalazinones are described. The phenyl moiety of the phthalazinone skeleton was found to play an important role in both thromboxane A2 synthetase-inhibitory and bronchodilatory activities. Further, the 3-pyridyl group at the 4-position was shown to be necessary for in vivo thromboxane
A novel series of 1-pyridylisoquinoline and 1-pyridyldihydroisoquinoline derivatives has been prepared. These compounds showed potent PDE4 inhibitory activities and a broad margin between the K-i value of the rolipram binding affinity and the IC50 value of PDE4 inhibition. They also exhibited potent inhibitory activities toward LPS-induced TNF-alpha production in mice. (C) 2003 Elsevier Science Ltd. All rights reserved.