PIPERLONGUMIN;PIPERLONGUMINE;PIPLARTINE;5,6-DIHYDRO-1-[1-OXO-3-3,4,5-TRIMETHOXYPHENYL-TRANS-2-PROPENYL]-21H-PYRIDINONE;piperlongumine from long pepper;5,6-Dihydro-1-[1-oxo-3-(3,4,5-trimethoxyphenyl)-2-propenyl]pyridin-2(1H)-one;5,6-dihydro-1-[1-oxo-3-(3,4,5-triMethoxyphenyl)-allyl]-2(1H)-pyridinone;(E)-5,6-Dihydro-1-[1-oxo-3-(3,4,5-triMethoxyphenyl)-2-propenyl]-2(1H)-pyridinone