Jacky C K Yeung

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In Streptomyces lividans, the expression of several proteins is stimulated by the thiopeptide antibiotic thiostrepton. Two of these, TipAL and TipAS, autoregulate their expression after covalently binding to thiostrepton; this irreversibly sequesters the antibiotic and desensitizes the organism to its effects. In this work, additional molecular recognition(More)
We investigated a group of 2-benzylpiperidin-N-benzylpyrimidin-4-amines with various electron-withdrawing or electron-donating groups (EWGs or EDGs, respectively) as multi-targeted Alzheimer's disease (AD) therapeutics. The synthesized derivatives were screened for anti-cholinesterase (AChE and BuChE), anti-Aβ-aggregation (AChE- and self-induced) and(More)
A group of 2-substituted N-(naphth-1-ylmethyl)pyrimidin-4-amines (6a-k) and N-benzhydrylpyrimidin-4-amines (7a-k) in conjunction with varying steric and electronic properties at the C-2 position were designed, synthesized and evaluated as dual cholinesterase and amyloid-β (Aβ)-aggregation inhibitors. The naphth-1-ylmethyl compound 6f(More)
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