Diaminoindanes as Microsomal Triglyceride Transfer Protein Inhibitors
摘要:
The synthesis and biological activities of biarylamide-substituted diaminoindanes as microsomal triglyceride transfer protein (MTP) inhibitors are described. One of the more potent compounds, 8aR, inhibited both the secretion of apoB from Hep G2 cells and the MTP-mediated transfer of triglycerides between synthetic acceptor and donor liposomes with IC50 values of 0.7 and 70 nM, respectively. In normolipidemic rats and dogs, oral administration of 8aR dose-dependently reduced both plasma triglycerides and total cholesterol. Moreover, in rats and dogs, 8aR also prevented the postprandial rise in plasma triglycerides following a bolus administration of a fat load. Because MTP inhibitors decrease very low density lipoprotein assembly in the liver, the potential for hepatic lipid accumulation was evaluated. In normolipidemic rats, hepatic cholesterol and triglyceride contents were dose-dependently increased by 8aR. However, hepatic lipid accumulation resulted in negligible change in total liver weight and was reversible after withdrawal of the compound.
[EN] TROPANE COMPOUNDS<br/>[FR] COMPOSÉS DE TROPANE
申请人:EXELIXIS INC
公开号:WO2009055077A1
公开(公告)日:2009-04-30
A compound according to Formula I or II: (I) or (II) wherein R1, R1b, R2, L1, and L2 and L2b are as defined in the specification, pharmaceutical compositions thereof, and methods of use thereof.
Hypoxia-Selective Antitumor Agents. 13. Effects of Acridine Substitution on the Hypoxia-Selective Cytotoxicity and Metabolic Reduction of the Bis-bioreductive Agent Nitracrine <i>N</i>-Oxide
作者:Ho H. Lee、William R. Wilson、Dianne M. Ferry、Pierre van Zijl、Susan M. Pullen、William A. Denny
DOI:10.1021/jm9600104
日期:1996.1.1
N-oxides all showed greater metabolic stability than 2 in hypoxic AA8 cell cultures, and the 4-OMe compound 6 had improved activity in EMT6 multicellular spheroids suggesting that this metabolic stabilization may allow more efficient diffusion in tumor tissue. The parent compound 2 was selectively toxic to hypoxiccells in KHT tumors in vivo and clearly superior to nitracrine itself (although only at
Rh‐Catalyzed Asymmetric Hydrogenation of α,β‐ and β,β‐Disubstituted Unsaturated Boronate Esters
作者:Qiaozhi Yan、Xin Shen、Guofu Zi、Guohua Hou
DOI:10.1002/chem.202000703
日期:2020.5.12
A highlyenantioselectivehydrogenation of α,β-unsaturated boronate esters catalyzed by Rh-(S)-DTBM-Segphos complex has been developed. Both (Z)-α,β- and β,β-disubstituted substrates can be successfully hydrogenated to afford chiral boronates with excellent enantioselectivities, up to 98 % ee. Furthermore, the obtained chiral boronate esters, as important versatile synthetic intermediates are successfully
A compound according to Formula I or II:
wherein R1, R1b, R2, L1, and L2 and L2b are as defined in the specification, pharmaceutical compositions thereof, and methods of use thereof.