A New Alkaloid From Oxandra Xylopioides Diels

Effect of Some Soil Amendments on Saline-Sodic Soils Reclamation

“…These results are in agreement with that obtained by El-Shanawany (1985), who reported that applied gypsum, particularly at high rates gave the highest values of total soil porosity. Calcium accumulations on the exchange sites have improved soil aggregation thus reduced the bulk density.…”

Aporphinoid Alkaloids, IV

“…Hernandiaceae: llligera pentaphylla (196) 116. LIRIODENINE C17H903N 275.0582 SOURCES: Annonaceae: Alphonsea sclerocarpa (230), Annona bullata (149,201), Annona cherimolia (243,244), Annona glabra (96), Annona hayesii (187), Cananga odorata (186), Cleistopholispatens (248), Fissistigma glaucescens (153), Goniothalamus amuyon (153), Guatteria chrysopetala (102), Guatteria dielsiana (89), Guatteria goudotiana (26), Guatteria melosma (1), Guatteria modesta (10), Guatteria sagotiana (189), Guatteria schomburgkiana (22), Meiogyne virgata ( 229), Monodora tenuifolia ( 224), Oncodostigma monosperma (39), Oxandra xylopioides (11,71), Polyalthia cauliflora var. beccarii (128), Popowia pisocarpa (127), Rollinia mucosa (21), Rollinia papilionella (57), Rollinia sericea (19), Sapranthuspalanga (75), Unonopsis guatterioides (73) Magnoliaceae: Liriodendron tulipifera (197,198), Magnolia watsonii (243,244), Duguetia spixiana (62,188), Guatteria chrysopetala (102), Guatteria schomhurgkiana (55), Rolltnia mucosa (21), Rolltnia papilionella (57) Hernandiaceae: llligera pentaphylla (196) Magnoliaceae: Talauma cf.…”

Antimalarial Activity of Azafluorenone Alkaloids from the Australian Tree Mitrephora diversifolia

“…Chemical analysis of the active fractions from the prefractionated library identified ions in the (+)-LRESIMS at m / z 242 and 258, which were predicted to correspond to the bioactive natural products. Mass-directed isolation on the large-scale organic extract of M. diversifolia resulted in the purification of a new azafluorenone alkaloid, 5,8-dihydroxy-6-methoxyonychine ( 1 ), along with the previously isolated natural product 5-hydroxy-6-methoxyonychine ( 2 ) . Herein we report the isolation and structure elucidation for 5,8-dihydroxy-6-methoxyonychine ( 1 ), as well as the antimalarial activity of the two azafluorenone alkaloids.…”

“…Mass-directed isolation on the large-scale organic extract of M. diversifolia resulted in the purification of a new azafluorenone alkaloid, 5,8dihydroxy-6-methoxyonychine (1), along with the previously isolated natural product 5-hydroxy-6-methoxyonychine (2). 6 Herein we report the isolation and structure elucidation for 5,8-dihydroxy-6-methoxyonychine (1), as well as the antimalarial activity of the two azafluorenone alkaloids.…”