High-affinity thrombin receptor (PAR-1) ligands: a new generation of indole-based peptide mimetic antagonists with a basic amine at the C-terminus
摘要:
A new generation of indole-based peptide mimetics, bearing a basic amine at the C-terminus, was developed by the agency of two complementary, multistep, trityl resin-based approaches. Thus, we obtained several high-affinity thrombin receptor (PAR-1) ligands, such as 32 and 34. Compounds 32 and 34 were found to bind to PAR-1 with excellent affinity IC50 = 25 and 35 nM, respectively) and to effectively block platelet aggregation induced by SFLLRN-NH2 (TRAP-6) and alpha-thrombin. (C) 2003 Elsevier Science Ltd. All rights reserved.
High-affinity thrombin receptor (PAR-1) ligands: a new generation of indole-based peptide mimetic antagonists with a basic amine at the C-terminus
摘要:
A new generation of indole-based peptide mimetics, bearing a basic amine at the C-terminus, was developed by the agency of two complementary, multistep, trityl resin-based approaches. Thus, we obtained several high-affinity thrombin receptor (PAR-1) ligands, such as 32 and 34. Compounds 32 and 34 were found to bind to PAR-1 with excellent affinity IC50 = 25 and 35 nM, respectively) and to effectively block platelet aggregation induced by SFLLRN-NH2 (TRAP-6) and alpha-thrombin. (C) 2003 Elsevier Science Ltd. All rights reserved.
Discovery of Potent Succinate-Ubiquinone Oxidoreductase Inhibitors via Pharmacophore-linked Fragment Virtual Screening Approach
作者:Li Xiong、Xiao-Lei Zhu、Hua-Wei Gao、Yu Fu、Sheng-Quan Hu、Li-Na Jiang、Wen-Chao Yang、Guang-Fu Yang
DOI:10.1021/acs.jafc.6b00325
日期:2016.6.22
Succinate-ubiquinone oxidoreductase (SQR) is an attractive target for fungicide discovery. Herein, we report the discovery of novel SQR inhibitors using a pharmacophore-linked fragment virtual screening approach, a new drug design method developed in our laboratory. Among newly designed compounds, compound 9s was identified as the most potent inhibitor with a value of 34 nM against porcine SQR, displaying approximately 10-fold higher potency than that of the commercial control penthiopyrad. Further inhibitory kinetics studies revealed that compound 9s is a noncompetitive inhibitor with respect to the substrate cytochrome c and DCIP. Interestingly, compounds 8a, 9h, 9j, and 9k exhibited good in vivo preventive effects against Rhizoctonia solani. The results obtained from molecular modeling showed that the orientation of the R-2 group had a significant effect on binding with the protein.
High-affinity thrombin receptor (PAR-1) ligands: a new generation of indole-based peptide mimetic antagonists with a basic amine at the C-terminus
作者:Han-Cheng Zhang、Kimberly B. White、David F. McComsey、Michael F. Addo、Patricia Andrade-Gordon、Claudia K. Derian、Donna Oksenberg、Bruce E. Maryanoff
DOI:10.1016/s0960-894x(03)00325-1
日期:2003.7
A new generation of indole-based peptide mimetics, bearing a basic amine at the C-terminus, was developed by the agency of two complementary, multistep, trityl resin-based approaches. Thus, we obtained several high-affinity thrombin receptor (PAR-1) ligands, such as 32 and 34. Compounds 32 and 34 were found to bind to PAR-1 with excellent affinity IC50 = 25 and 35 nM, respectively) and to effectively block platelet aggregation induced by SFLLRN-NH2 (TRAP-6) and alpha-thrombin. (C) 2003 Elsevier Science Ltd. All rights reserved.