Development of New Cyclic Plasmin Inhibitors with Excellent Potency and Selectivity
摘要:
The trypsin-like serine protease plasmin is a target for the development of antifibrinolytic drugs for use in cardiac surgery with cardiopulmonary bypass or organ transplantations to reduce excessive blood loss. The optimization of our recently described substrate-analogue plasmin inhibitors, which were cyclized between their P3 and P2 side chains, provided a new series with improved efficacy and excellent selectivity. The most potent inhibitor 8 binds to plasmin with an inhibition constant of 0.2 nM, whereas K-i values >1 mu M were determined for nearly all other tested trypsin-like serine proteases, with the exception of trypsin, which is also inhibited in the nanomolar range. Docking studies revealed a potential binding mode in the widely open active site of plasmin that explains the strong potency and selectivity profile of these inhibitors. The dialkylated piperazine-linker segment contributes to an excellent solubility of all analogues. Based on their overall profile the presented inhibitors are well suited for further development as injectable antifibrinolytic drugs.
Phthalazine compounds, compositions and methods of use
申请人:Austin Richard J.
公开号:US20090048259A1
公开(公告)日:2009-02-19
The present invention relates generally to compounds represented in Formula I, pharmaceutical compositions comprising them and methods of treating of diseases or disorders such as cancer.
本发明一般涉及在式I中表示的化合物,包括它们的药物组合物以及治疗癌症等疾病或疾病的方法。
WO2006/55187
申请人:——
公开号:——
公开(公告)日:——
Organic chemistry of L-tyrosine. 1. General synthesis of chiral piperazines from amino acids