UPSI Digital Repository (UDRep)
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Abstract : Universiti Pendidikan Sultan Idris |
Chemical constituents and biological activities of the aerial parts of Piper erecticaule C.DC. have been studied for the first time. Fractionation and purification of the extracts afforded aristolactam AII (1), aristolactam BII (2), piperolactam A (3), piperolactam C (4),piperolactam D (5), together with terpenoids of β-sitosterol, β-sitostenone, taraxerol, and lupeol. The structures of these compounds were obtained by analysis of their spectroscopic data, as well as the comparison with that of reported data. Acetylcholinesterase inhibitory activity revealed that compounds 1 and 3 showed strong AChE inhibitory effects with the percentage inhibition of 75.8% and 74.8%, respectively |
References |
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