Structure-Activity Relationships of New 2-Acylamino-3-thiophenecarboxylic Acid Dimers as Plasminogen Activator Inhibitor-1 Inhibitors
作者:Nagahisa Yamaoka、Yasuhiko Kawano、Yuko Izuhara、Toshio Miyata、Kanji Meguro
DOI:10.1248/cpb.58.615
日期:——
Small molecule inhibitors of plasminogen activator inhibitor (PAI)-1 have been reported to date but their clinical effects still remain unknown. The present study was undertaken to investigate the structure–activity relationships (SAR) of newly synthesized 2-acylamino-3-thiophenecarboxylic acid dimers based upon a core structure of TM5001 (1) and TM5007 (2) that we have previously identified as orally effective PAI-1 inhibitors. In general, compounds possessing bulky or/and hydrophobic substituents (e.g. phenyl, isobutyl group) on the both thiophene rings showed potent PAI-1 inhibitory activities irrespective of the positions of the substitution. The mono-carboxyl derivative (10) exhibited PAI-1 inhibition comparable to the corresponding dicarboxyl compound (9f).
迄今为止,纤溶酶原激活物抑制剂(PAI)-1 的小分子抑制剂已有报道,但其临床效果仍然未知。本研究以 TM5001 (1) 和 TM5007 (2) 的核心结构为基础,研究了新合成的 2-酰氨基-3-噻吩羧酸二聚体的结构-活性关系(SAR)。一般来说,在两个噻吩环上都具有笨重或/和疏水取代基(如苯基、异丁基)的化合物,无论取代基的位置如何,都具有很强的 PAI-1 抑制活性。单羧基衍生物(10)对 PAI-1 的抑制作用与相应的二羧基化合物(9f)相当。