Minor phenolics from Crinum bulbispermum bulbs

From the bulbs of Crinum bulbispermum Milne, four new minor compounds were isolated viz. 4-hydroxy-2',4'-dimethoxydihydrochalcone (1), 4,5-methylenedi oxy-4'-hydroxy-2-aldelyde[1,1'-biphenyl] (4), hippacine (6), and 4'-hydroxy -7-methoxyflavan-3-ol (7). In addition, four known compounds were isolated and identified as 2(S),3',4'-dihydroxy-7-methoxy flavan (2), isolarrien (3) , isoliquiritigenin (5) and liquiritigenin (8). The structures of the isola ted compounds were established by spectral evidence. (C) 2000 Elsevier Scie nce Ltd. All rights reserved.