Dunaliine A, a new amino diketone from Desmos dunalii (Annonaceae).
Dunaliine A (1), a new amino diketone, has been isolated from the leaves of Desmos dunalii together with four known dihydrochalcones: 2',4-dihydroxy-4',6'-dimethoxy-3',5'-dimethyldihydrochalcone (2), 2',4-dihydroxy-4',6'-dimethoxydihydrochalcone (3), 2',4-dihydroxy-4',5',6'-trimethoxydihydrochalcone (4) and 2',4-dihydroxy-5'-methyl-4',6'-dimethoxydihydrochalcone (5). The structures of these compounds were established notably by spectral analysis (1D- and 2D- (1)H, (13)C NMR), UV, IR and HRMS.
Awang
Khalijah
K
Chemistry Department, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia. khalijah@um.edu.my
Abdullah
Zunoliza
Z
Mukhtar
Mat Ropi
MR
Litaudon
Marc
M
Jaafar
Faridahanim Mohd
FM
Hadi
A Hamind A
AH
Thomas
Noel F
NF
D029061:Annonaceae / Q000737:chemistry*; D047188:Chalcones / Q000302:isolation & purification*; D007659:Ketones / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010936:Plant Extracts / Q000302:isolation & purification*; D018515:Plant Leaves / Q000737:chemistry*
D047188:Chalcones; D007659:Ketones; D010936:Plant Extracts; C015812:dihydrochalcone