Process Development and Large-Scale Synthesis of a c-Met Kinase Inhibitor
摘要:
A highly convergent synthesis of c-Met kinase inhibitor 1 has been demonstrated on a multikilogram scale using three key fragments: dihalotricyclic core 2, chiral sulfamide side chain 3, and pyrazole boronic ester 4. The chirality in sulfamide side chain 3 was installed using the cheap and readily available starting material (S)epichlorohydrin. A total of 2.71 kg of 1 were isolated in seven steps (the longest linear sequence).
Design, synthesis, and evaluation of dioxane-based antiviral agents targeted against the Sindbis virus capsid protein
作者:Ha Young Kim、Chinmay Patkar、Ranjit Warrier、Richard Kuhn、Mark Cushman
DOI:10.1016/j.bmcl.2005.05.013
日期:2005.7
Dioxane-based antiviral agents targeted to the hydrophobic binding pocket of Sindbis virus capsid protein were designed by computer graphics molecular modeling and synthesized. Virus production using SIN-IRES-Lue and capsid assembly were monitored to evaluate antiviral activity. A compound with a three-carbon linker chain connecting two dioxane moieties inhibited virus production by 50% at a concentration of 40 mu M, while (R)-hydroxymethyldioxane inhibited virus production by 50% at a concentration of 1 mu M. Both compounds were not cytotoxic in uninfected BHK cells at concentrations of 1 mM. (c) 2005 Elsevier Ltd. All rights reserved.