
TY  - JOUR
A1  - Jurd, L 
A1  - Wong, RY 
A1  - Benson, M 
T1  - The structures of paraensidimerin A and C, two bisquinolinone alkaloids from <I>Euxylophora paraensis</I>
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1982
VL  - 35
IS  - 12
SP  - 2505
EP  - 2517
KW  - 
UR  - https://doi.org/10.1071/CH9822505 
N2  - Single-crystal X-ray diffraction studies and n.m.r. spectral measurements have now shown structure of paraensidimerin A, a bisquinolinone alkaloid from the heartwood of Euxylophora paraensis (Rutaceae), to be (6a&#945;,7&#946;,15&#946;,16a&#945;)-(±-6,6,9,15,18-pentamethyl-6,6a,7,9,15,16,16a,18-octahydro-7,15-methano-8H,17H-quino[3',4' :5',6'] pyrano[3',4':5,6] oxocino[3,2-c] quinoline-8,17-dione (8). Paraensidimerin C is a stereoisomer, (6a&#945;,7&#946;,15&#946;,16a&#946;)-(±)-6,6,9,15,18-pentamethyl-9,15,16,16a,18-octahydro-7,15-methano-8H,17H-quino [3',4':5',6'] pyrano [3',4': 5,6] oxocino [3,2-quinoline-8,17-dione (9). Possible biosynthetic routes to these and other dimeric quinolinone alkaloids are suggested. 
ER  -

