Novel Antiasthmatic Agents with Dual Activities of Thromboxane A2 Synthetase Inhibition and Bronchodilation. V. Thienopyridazinone Derivatives.
作者:Masahisa YAMAGUCHI、Noriaki MARUYAMA、Takaki KOGA、Kenshi KAMEI、Michitaka AKIMA、Toshio KUROKI、Masatomo HAMANA、Nobuhiro OHI
DOI:10.1248/cpb.43.236
日期:——
Synthesis and pharmacological evaluation of novel thienopyridazinones and related compounds are described.A thiophene ring was found to be able to replace the benzene ring of a phthalazinone without loss of biological activities. This observation supports our hypothesis that the benzene ring plays an important role in both thromboxane A2 (TXA2) synthetase-inhibitory and bronchodilatory activities. Further, it was shown that the carbonyl moiety of a phthalazinone is not necessary for these activities.