https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 Cascade metathesis reactions for the synthesis of taxane and isotaxane derivatives https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:29882 gem-dimethyl group), the RCEDYM reaction leads to 14,15-isotaxanes 16 a,b and 18 b with the gem-dimethyl group on the A ring. If the alkyne is at the C11 position (and thus flanked by a gem-dimethyl group), RCEDYM reaction only proceeds in the presence of a trisubstituted olefin at C13, which disfavors the competing diene ring-closing metathesis reaction, to give the tricyclic core of Taxol 44.]]> Wed 11 Apr 2018 11:08:27 AEST ]]> Synthesis and antibacterial evaluation of novel 3-substituted ocotillol-type derivatives as leads https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:34681 B. subtilis 168 and MRSA USA300) and Gram-negative bacteria (P. aer PAO1 and A. baum ATCC19606) in vitro, the derivatives exhibited good antibacterial activity, particularly against Gram-positive bacteria with an minimum inhibitory concentrations (MIC) value of 2–16 µg/mL. The subsequent synergistic antibacterial assay showed that derivatives 5c and 6c enhanced the susceptibility of B. subtilis 168 and MRSA USA300 to chloramphenicol (CHL) and kanamycin (KAN) (FICI < 0.5). Our data showed that ocotillol-type derivatives with long-chain amino acid substituents at C-3 were good leads against antibiotic-resistant pathogens MRSA USA300, which could improve the ability of KAN and CHL to exhibit antibacterial activity at much lower concentrations with reduced toxicity.]]> Wed 04 Sep 2019 10:06:26 AEST ]]> Directionally Lipschitzian mappings on Baire spaces https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:13137 Sat 24 Mar 2018 08:18:06 AEDT ]]> Computation and structure of character polylogarithms with applications to character Mordell-Tornheim-Witten sums https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:26179 Sat 24 Mar 2018 07:24:10 AEDT ]]>