4-Arylmethyloxymethyl piperidines as tachykinin antagonsits
申请人:Merck Sharp & Dohme Limited
公开号:US05620989A1
公开(公告)日:1997-04-15
The present invention is directed to compounds of the formula (I) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, and R.sup.7 are defined herein, and pharmaceutically acceptable salts thereof, which are useful as tachykinin antagonists,
Discovery of Bioavailable 4,4-Disubstituted Piperidines as Potent Ligands of the Chemokine Receptor 5 and Inhibitors of the Human Immunodeficiency Virus-1
作者:Wieslaw M. Kazmierski、Christopher Aquino、Brian A. Chauder、Felix Deanda、Robert Ferris、Deborah K. Jones-Hertzog、Terrence Kenakin、Cecilia S. Koble、Christian Watson、Pat Wheelan、Hanbiao Yang、Michael Youngman
DOI:10.1021/jm800598a
日期:2008.10.23
We describe robust chemical approaches toward putative CCR5 scaffolds designed in our laboratories. Evaluation of analogues in the (125)I-[MIP-1 beta] binding and Ba-L-HOS antiviral assays resulted in the discovery of 64 and 68 in the 4,4-disubstitited piperidine class H, both potent CCR5 ligands (pIC(50) = 8.30 and 9.00, respectively) and HIV-1 inhibitors (pIC(50) = 7.80 and 7.84, respectively, in Ba-L-HOS assay). In addition, 64 and 68 were bioavailable in rodents, establishing them as lead molecules for further optimization toward CCR5 clinical candidates.
Photoinduced Remote Functionalisations by Iminyl Radical Promoted C−C and C−H Bond Cleavage Cascades
作者:Elizabeth M. Dauncey、Sara P. Morcillo、James J. Douglas、Nadeem S. Sheikh、Daniele Leonori
DOI:10.1002/anie.201710790
日期:2018.1.15
A photoinduced cascade strategy leading to a variety of differentially functionalised nitriles and ketones has been developed. These reactions rely on the oxidative generation of iminyl radicals from simple oximes. Radical transposition by C(sp3 )-(sp3 ) and C(sp3 )-H bond cleavage gives access to distal carbon radicals that undergo SH 2 functionalisations. These mild, visible-light-mediated procedures