Design and Synthesis of Isoxazoline Derivatives as Factor Xa Inhibitors. 1
摘要:
Thrombosis is a major cause of mortality in the industrialized world. Therefore, the prevention of blood coagulation has become a major target for new therapeutic agents. One attractive approach is the inhibition of factor Xa (FXa), the enzyme directly responsible for protbrombin activation. We report a series of novel biaryl-substituted isoxazoline derivatives in which the biaryl moiety was designed to interact with the S-4 aryl-binding domain of the FXa active site. Several of the compounds herein have low nanomolar affinity for FXa, have good in vitro selectivity for FXa, and show potent antithrombotic efficacy in vivo, The three most potent compounds (33, 35, and 37) have inhibition constants for human FXa of 3.9, 2.3, and 0.83 nM, respectively, and ID50's ranging from 0.15 to 0.26 mu mol/kg/h in the rabbit arterio-venous thrombosis model.
Discovery and SAR study of novel dihydroquinoline containing glucocorticoid receptor ligands
摘要:
We report the discovery of a novel class of glucocorticoid receptor (GR) ligands based on 1,2-dihydroquinoline molecular scaffold. The compounds exhibit good GR binding affinity and selectivity profile against other nuclear hormone receptors. (C) 2005 Elsevier Ltd. All rights reserved.
3-Hydroxypyrimidine-2,4-diones as Selective Active Site Inhibitors of HIV Reverse Transcriptase-Associated RNase H: Design, Synthesis, and Biochemical Evaluations
作者:Jing Tang、Feng Liu、Eva Nagy、Lena Miller、Karen A. Kirby、Daniel J. Wilson、Bulan Wu、Stefan G. Sarafianos、Michael A. Parniak、Zhengqiang Wang
DOI:10.1021/acs.jmedchem.5b01879
日期:2016.3.24
achieve selective RNaseHinhibition. Biochemical studies showed the two subtypes with an N-1 methyl group (9 and 10) inhibited RNaseH in low micromolar range without siginificantly inhibiting RT polymerase, whereas the N-1 unsubstituted subtype 11 inhibited RNaseH in submicromolar range and RT polymerase in low micromolar range. Subtype 11 also exhibited substantially reduced inhibition in the HIV-1
Organogold(I) Phosphanes in Palladium-Catalyzed Cross-Coupling Reactions in Aqueous Media
作者:Miguel Peña-López、Luis A. Sarandeses、José Pérez Sestelo
DOI:10.1002/ejoc.201201720
日期:2013.5
Cross-coupling reaction of organogold(I) phosphanes with organic electrophiles in aqueousmedia has been investigated. Reactions between isolated aryl-, alkenyl-, or alkynylgold(I) phosphanes and aryl halides or triflates, alkenyl halides, and allyl acetates proceed under palladium catalysis conditions at room temperature or 80 °C in water with THF as a co-solvent. The couplingreactions give good yields
Unified Protocol for Cobalt-Catalyzed Oxidative Assembly of Two Aryl Metal Reagents Using Oxygen as an Oxidant
作者:Lian-Yan Liao、Kun-Ming Liu、Xin-Fang Duan
DOI:10.1021/acs.joc.5b01787
日期:2015.10.16
reaction of two aryl metal reagents is described. An equivalent amount of two arylGrignard or lithium reagents, after mediation by an equivalent amount of simple ClTi(OEt)3, was facilely assembled under the catalysis of 1 mol % of CoCl2/10 mol % of DMPU using oxygen. The cross-couplings between various aryl metal reagents, especially between two structurally similar arylGrignardreagents, proceeded smoothly
Facile synthesis of mono-, bis- and tris-aryl-substituted aniline derivatives in aqueous DMF
作者:Chun Liu、Xiaoxiao Song、Qijian Ni、Jieshan Qiu
DOI:10.3998/ark.5550190.0013.906
日期:——
A facile, efficient and general protocol for synthesizing a series of mono-, bisand tris-arylsubstituted anilinederivatives is described via the Pd(OAc)2-catalyzed aerobic and ligand-free Suzuki reaction of mono-, diand tribromoanilines with aryl boronic acids in aqueous N,Ndimethylformamide (DMF). This is the first example to prepare 2,6-bisaryl-4-nitroanilines and 2,6-bisarylanilines via a palladium-catalyzed