Development of Orally Bioavailable and CNS Penetrant Biphenylaminocyclopropane Carboxamide Bradykinin B1 Receptor Antagonists
摘要:
A series of biphenylaminocyclopropane carboxamide based bradykinin B-1 receptor antagonists has been developed that possesses good pharmacokinetic properties and is CNS penetrant. Discovery that the replacement of the trifluoropropionamide in the lead structure with polyhaloacetamides, particularly a trifluoroacetamide, significantly reduced P-glycoprotein mediated efflux for the series proved essential. One of these novel bradykinin B-1 antagonists (13b) also exhibited suitable pharmacokinetic properties and efficient ex vivo receptor occupancy for further development as a novel approach for the treatment of pain and inflammation.
Tricyclic dihydroquinazolinones as novel 5-HT2C selective and orally efficacious anti-obesity agents
摘要:
Agonists of the 5-HT2C receptor have been shown to suppress appetite and reduce body weight in animal models as well as in humans. However, agonism of the related 5-HT2B receptor has been associated with valvular heart disease. Synthesis and biological evaluation of a series of novel and highly selective dihydroquinazolinone-derived 5-HT2C agonists with no detectable agonism of the 5-HT2B receptor is described. Among these, compounds (+)-2a and (+)-3c were identified as potent and highly selective agonists which exhibited weight loss in a rat model upon oral dosing. (C) 2009 Elsevier Ltd. All rights reserved.
Compounds disclosed herein are bradykinin B1 antagonist compounds useful in the treatment or prevention of symptoms such as pain and inflammation associated with the bradykinin B1 pathway.
Electronic Control of Chiral Quaternary Center Creation in the Intramolecular Asymmetric Heck Reaction
作者:Carl A. Busacca、Danja Grossbach、Scot J. Campbell、Yong Dong、Magnus C. Eriksson、Robert E. Harris、Paul-James Jones、Ji-Young Kim、Jon C. Lorenz、Keith B. McKellop、Erin M. O'Brien、Fenghe Qiu、Robert D. Simpson、Lana Smith、Regina C. So、Earl M. Spinelli、Jana Vitous、Chiara Zavattaro
DOI:10.1021/jo049448z
日期:2004.8.1
The Boehringer-Ingelheim phosphinoimidazoline (BIPI) ligands were applied to the formation of chiral quaternary centers in the asymmetric Heck reaction. Several different substrates were examined in detail, using more than 70 members of this new ligand class. Hammett relationships were determined through systematic variation of the ligand electronics. All substrates showed essentially the same Hammett behavior, where enantioselectivity increased as the ligands were made more electron-deficient. Ligand optimization has led to catalysts which give the highest enantioselectivities reported to date for these difficult systems.
METHOD FOR INHIBITING TRYPANOSOMA CRUZI
申请人:Bakare Oladapo
公开号:US20150073177A1
公开(公告)日:2015-03-12
Methods are provided to inhibit proliferation of
Trypanosoma cruzi
with imido-substituted 1,4-naphthoquinones, including novel compounds. Administering an imido-substituted 1,4-naphthoquinone can be used to provide prophylaxis or treatment to a patient in need of treatment against Chagas disease.