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Full-Text Articles in Physical Sciences and Mathematics
Synthesis Of Hyacinthacine B-3 And Purported Hyacinthacine B-7, Christopher W.G. Au, Robert J. Nash, Stephen G. Pyne
Synthesis Of Hyacinthacine B-3 And Purported Hyacinthacine B-7, Christopher W.G. Au, Robert J. Nash, Stephen G. Pyne
Faculty of Science - Papers (Archive)
The synthesis of hyacinthacines B-3 and B-7 has confirmed the structure of the former alkaloid and shown that the structure of the latter is incorrect.
Total Synthesis Of Uniflorine A, Casuarine, Australine, 3-Epi-Australine, And 3,7-Di-Epi-Australine From A Common Precursor, Thunwadee Ritthiwigrom, Anthony C. Willis, Stephen G. Pyne
Total Synthesis Of Uniflorine A, Casuarine, Australine, 3-Epi-Australine, And 3,7-Di-Epi-Australine From A Common Precursor, Thunwadee Ritthiwigrom, Anthony C. Willis, Stephen G. Pyne
Faculty of Science - Papers (Archive)
A flexible method for the diastereoselective total synthesis of the pyrrolizidine alkaloids Uniflorine A, casuarine, australine, and 3-epi-australine and the unnatural epimer 3,7-di-epi-australine from a common chiral 2,5-dihydropyrrole precursor is described.
Distribution Of Class 1 Integrons With Is26-Mediated Deletions In Their 3'-Conserved Segments In Escherichia Coli Of Human And Animal Origin., Fay E. Dawes, Alexander Kuzevski, Karl A Bettelheim, Michael A Hornitzky, Steven P Djordjevic, Mark J. Walker
Distribution Of Class 1 Integrons With Is26-Mediated Deletions In Their 3'-Conserved Segments In Escherichia Coli Of Human And Animal Origin., Fay E. Dawes, Alexander Kuzevski, Karl A Bettelheim, Michael A Hornitzky, Steven P Djordjevic, Mark J. Walker
Faculty of Science - Papers (Archive)
Class 1 integrons play a role in the emergence of multi-resistant bacteria by facilitating the recruitment of gene cassettes encoding antibiotic resistance genes. 512 E. coli strains sourced from humans (n = 202), animals (n = 304) and the environment (n = 6) were screened for the presence of the intI1 gene. In 31/79 integron positive E. coli strains, the gene cassette regions could not be PCR amplified using standard primers. DNA sequence analysis of 6 serologically diverse strains revealed atypical integrons harboured the dfrA5 cassette gene and only 24 bp of the integron 3'-conserved segment (CS) remained, due to …