Skip to main content
. Author manuscript; available in PMC: 2010 Aug 3.
Published in final edited form as: J Nat Prod. 2007 Oct 25;70(11):1741–1745. doi: 10.1021/np070206e

Table 1.

1H NMR data for 1-4 in acetone-d6 (400 MHz, unless otherwise noted)

H 1 2 3 4a
2 7.49 (2H, s), H-2,5 --- --- 7.48 (2H, s), H-2,5
5 4.65 (2H, s) 6.54 (1H, s)
7 4.20 (2H, s) 4.24 (2H, s) 4.26 (1Ha, d, 15.2)
4.16 (1Hb, d, 15.2)		 5.79 (1H, s)
2′,6′ 7.23 (2H, d, 8.4) 7.17 (2H, d, 8.4) 7.16 (2H, d, 8.4) 7.42 (2H, d, 8.4)
3′,5′ 6.83 (2H, d, 8.4) 6.75 (2H, d, 8.4) 6.76 (2H, d, 8.4) 6.83 (2H, d, 8.4)
2″,6″ 7.09 (4H, d, 8.4), H-2″,6″, 2‴,6‴ 7.22 (2H, d, 8.4) 7.21 (2H, d, 8.4) 7.01 (4H, d, 8.4), H-2″,6″, 2‴,6‴
3″,5″ 6.78 (4H, d, 8.4), H-3″,5″, 3‴,5‴ 6.86 (2H, d, 8.4) 6.85 (2H, d, 8.4) 6.73 (4H, d, 8.4), H-3″,5″, 3‴,5‴
2‴,6‴ 7.31 (2H, d, 8.4) 7.39 (2H, d, 8.4)
3‴,5‴ 6.80 (2H, d, 8.4) 6.78 (2H, d, 8.4)
OH 8.38 (3H, s) --- 5.71 (1H, s), OH-5 ---
a

600 MHz