Triterpenoids from Artocarpus heterophyllus

Isolation and characterization of new compounds from seeds of Nigella sativa

“…A double doublet at d 6.07 and 5.36 (J = 6.5, 5.0 Hz) confirmed an exomethylene olefinic bond at the C-20 position in conjugation with the double bond at C-22 and a triplet at d 5.09 (7.0) was assigned to a trisubstituted olefinic bond at he H-7 position (Lves et al, 2000;Barik et al, 1997). It contained 30 carbons in which 10-methylene, 7-methine, 7-quaternary, and 6 methyl carbons accounted by 13 C NMR, distortionless enhancement by polarization transfer (DEPT 90, 135) spectral analysis.…”

“…Compound 1 showed a molecular ion peak at m/z = 438, suggesting the molecular formula of C 30 H 46 O 2 and the presence of five rings and three double bonds. Its infrared (IR) spectrum exhibited absorptions in the hydroxyl region (3420 cm -1 ), cyclopropane methylene (3020 cm -1 ), aliphatic stretching and bending region (2850, 1467, and 1381 cm -1 ) and unsaturation bands (1624 and 885 cm -1 ) (Barik et al, 1994;Bellamy, 1975;Dyer, 1994).…”

Secondary metabolites from the stems of Artocarpus heterophyllus

“…Artocarpus species have been used in folk medicine for their anti-inflammatory, antioxidant, antibacterial, and antiplatelet activities [3][4][5][6]. Plants of the genus Artocarpus are rich in prenylflavonoids [3,[7][8][9][10][11][12][13][14][15][16].To further understand the chemotaxonomy of the genus Artocarpus and to continue searching for novel bioactive metabolites from Moraceae plants, A. heterophyllus was chosen for a phytochemical investigation.Carefull examination of this plant has resulted in the isolation of nine constituents, 1-9. Compounds 3-9 were isolated from this species for the first time.…”

“…Artocarpus species have been used in folk medicine for their anti-inflammatory, antioxidant, antibacterial, and antiplatelet activities [3][4][5][6]. Plants of the genus Artocarpus are rich in prenylflavonoids [3,[7][8][9][10][11][12][13][14][15][16].…”

“…Many bioactive prenylflavonoids isolated from Artocarpus species have been reported in recent studies [7][8][9][10][11][12][13][14][15][16]. Most of the compounds possess anti-inflammatory, antioxidant, antibacterial, and antiplatelet activities [3][4][5][6].…”