Phytochemical investigation of the 80% EtOH extract of the bulbs of Lycoris aurea led to the isolation of six new alkaloids, 2-demethyl-isocorydione (1), 8-demethyl-dehydrocrebanine (2), 1-hydroxy-anhydrolycorin-7-one (3), (+)-1,2-dihydroxy-anhydrolycorine N-oxide (4),
Phytochemical investigation of the ethanol extract of the bulbs of Lycoris caldwellii afforded four new alkaloids, (+)-N-methoxylcarbonyl-nandigerine (1), (+)-N-methoxycarbonyl-lindcarpine (2), (+)-10-O-methylhernovine N-oxide (3), and (+)-3-hydroxy-anhydrolycorine N-oxide (4). Structural