Two new 2.5-dihydrofuryl-y-lactam derivatives, fulvanine D and E have been extracted from Hemerocallis fulva L. var. kwanso REGEL along with fulvanine A, B and C. The structures of fulvanine D and E have been established as 1-(3-hydroxymethyl-2,5-dihydro-2-furyl)azacyclopenta-3-hydroxy-5-methoxy-2-one (1) and 1,2,4,5,5a,6,7,8,-8a, 8b-decahydro-1, 5-dioxa-8a-aza-asym-indacen-7-hydroxy-8-one (2).