Two amides from Piper amalago

Two amides from Piper amalago Constituents of Tropical Medicinal Plants, IXX¹GC/MS-Investigations of the Constituents of<i>Piper amalago</i>- 30 New Amides of the Piperine-Type New Amide Alkaloids from the Roots of Piper nigrum Isolation and identification of amides from Piper callosum. Synthesis of pipercallosine and pipercallosidine Novel amide alkaloids from the roots of Piper guineense New Amide Alkaloids from the Roots of <i>Piper </i><i>n</i><i>igrum</i> Alkaloids of Piper longum Linn—I A piperidine alkaloid from excoecharia agallocha An amide from fruits of Piper nigrum A cinnamoyl pyrrolidine amide from Piper peepuloides