W
Ward T. Robinson
Researcher at University of Malaya
Publications - 66
Citations - 283
Ward T. Robinson is an academic researcher from University of Malaya. The author has contributed to research in topics: Nitration & Crystal structure. The author has an hindex of 9, co-authored 66 publications receiving 264 citations. Previous affiliations of Ward T. Robinson include University of Canterbury & Iwaki Meisei University.
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Unusual indole alkaloid-pyrrole, -pyrone, and -carbamic acid adducts from Alstonia angustifolia.
TL;DR: In this paper, three unusual natural products, viz., alstopirocine, a macroline alkaloid incorporating a substituted pyrrole moiety, pleiomaltinine, an alkaloidepyrone adduct, and pleiomalicine (pyrrole substituted with pleiocarpamine), were isolated from the Malayan Alstonia angustifolia.
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Leucophyllidine, a cytotoxic bisindole alkaloid constituted from the union of an eburnan and a new vinylquinoline alkaloid.
TL;DR: A cytotoxic bisindole alkaloid possessing an unprecedented structure constituted from the union of an eburnan half and a novel vinylquinoline alkaloids has been isolated from Leuconotis griffithii by analysis of the spectroscopic and X-ray diffraction data.
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Macrodasines A–G, macroline indole alkaloids incorporating fused spirocyclic tetrahydrofuran–tetrahydrofuran and tetrahydrofuran–tetrahydropyran rings
TL;DR: In this paper, the structure of macrodasines was established by analysis of spectroscopic data and in the case of Macrodasine A and B confirmed by X-ray diffraction analysis, and they showed moderate levels of activity in reversing multidrug-resistance in drug-resistant KB cells.
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Synthesis, structural characterization and antibacterial activity of 2,6-diacetylpyridine bis(benzenesulfonohydrazide) Schiff bases and their copper(II) complexes
TL;DR: In this article, a single crystal X-ray structure analysis of Schiff bases was performed and the results showed that the antibacterial activity of the Schiff bases against Methicillin-resistant Staphylococcus aureus (MRSA) is enhanced when they are chelated with the copper(II) ion.
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Aspidospermatan-aspidospermatan and eburnane-sarpagine bisindole alkaloids from Leuconotis
TL;DR: Leucofoline and leuconoline, representing the first members of the aspidos permatan-aspidospermatan and eburnane-sarpagine subclasses of the bisindole alkaloids, respectively, were isolated from the Malayan Leuconotis griffithii.