
TY  - JOUR
A1  - Jurd, L 
A1  - Wong, RY 
T1  - New quinolinone alkaloids from the heartwood of, <I>Euxylophora paraensis</I>
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1981
VL  - 34
IS  - 8
SP  - 1625
EP  - 1632
KW  - 
UR  - https://doi.org/10.1071/CH9811625 
N2  - The heartwood of Euxylophora paraensis Hub. (Rutaceae) has given N-methylflindersine (2),spectabiline (3), skimmianine (4) and two new alkaloids, identified from spectroscopic data as 4-hydroxy-2,2,6-trimethyl-3,4,5,6-tetrahydro-2H-pyrano[3,2-c]quinolin-5-one (5) and 4-(2,3-dihydroxy-3-methylbutoxy)-1-methylquinolin-2(1H)-one (6). Five new dimeric quinolinone alkaloids, C30H30N2O4, were isolated. The structure of one of these, paraensidimerin D, has now been shown by single-crystal X-ray diffraction methods to be (11), viz. (6a&#945;,7&#945;,14a&#945;)-6,6,9,16- tetramethyl-7-(2-methylprop-1-enyl)-6,6a,7,9,14a,16-hexahydro-8H,15H- quino[3'',4'':5',6'] pyrano [2',3':4,5] pyrano-[3,2-c]quinoline-8,15- dione. 
ER  -

