Two pairs of bioactive cyclohexene alkaloid enantiomers from the roots of Piper nigrum

Two pairs of bioactive cyclohexene alkaloid enantiomers from the roots of Piper nigrum Novel Bisamide Alkaloids Enantiomers from Pepper Roots (Piper nigrum L.) with Acetylcholinesterase Inhibitory and Anti-Neuroinflammatory Effects Expanded Application of Piper nigrum: Guided Isolation of Alkaloids with Inhibitory Activities of AChE/BuChE and Aβ Aggregation Nigramides A−S, Dimeric Amide Alkaloids from the Roots of Piper nigrum Nigramides A−S, Dimeric Amide Alkaloids from the Roots of <i>Piper </i><i>n</i><i>igrum</i> New Amide Alkaloids from the Roots of Piper nigrum Synthesis of piperine analogues as AChE and BChE inhibitors for the treatment of Alzheimer's disease Two new alkaloids, pipercyclobutanamides A and B, from Piper nigrum Alkaloids from <i>Piper sarmentosum</i> and <i>Piper nigrum</i> Alkamides from <i>Piper nigrum</i> L. and Their Inhibitory Activity against Human Liver Microsomal Cytochrome P450 2D6 (CYP2D6)