p. 504 - 511
(2007/10/02)p. 5985 - 5988
(2007/10/02)p. 5989 - 5992
(2007/10/02)nigakilactone I
acetic anhydride
2,3-didehydropicrasin B
12-hydroxy-16α-methoxypicras-12-en-1,11-dione
(3aR,5R,6aR,7aS,8R,11aS,11bS,11cS)-5-Hydroxy-2-methoxy-3,8,11a,11c-tetramethyl-3a,4,5,6a,7,7a,8,9,10,11a,11b,11c-dodecahydro-6-oxa-benzo[de]anthracene-1,11-dione