An aristolactam from Piper acutisleginum and revision of the structures of piperolactam B and D

An aristolactam from Piper acutisleginum and revision of the structures of piperolactam B and D Piperolactam D, a New Aristolactam from Indian Piper Species Aristolactams and 4,5-dioxoaporphines from Piper longum Alkaloids from Piper puberullum Aristolactams and further constituents from Aristolochia chamissonis A New Aristolactam Alkaloid and Anti-Platelet Aggregation Constituents fromPiper taiwanense Neolignans and alkaloids from Piper argyrophylum An N-methyl aristolactam and an oxygenated cyclohexane derivative from Piper ribesioides Alkaloids of Piper longum Linn—I Isopiperolein B: an alkamide from Piper nigrum