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. Author manuscript; available in PMC: 2010 Mar 27.
Published in final edited form as: J Nat Prod. 2009 Mar 27;72(3):360–365. doi: 10.1021/np800572r

Table 1.

1H, 13C, and HMBC NMR Data for 1 and 2

1
 2
no. 1H 13C 2J 3J 1H 13C 2J 3J
2 153.4 153.5
3 8.07 dd (1.5, 8.0) 123.4 C-5 8.09 dd (1.5, 8.5) 140.3 C-5
4 7.67 t (1.0, 8.5) 130.6 C-3 C-2, C-6 7.64 t (1.5, 8.5) 130.4 C-3, C-5 C-2, C-6
5 7.38 t (1.5, 7.0) 123.9 C-6 C-3 7.37 t (2.0, 8.0) 123.8 C-6 C-3
6 8.35 d (6.5) 140.5 C-3, C-5 C-2, C-4 8.34 d (7.0) 124.0 C-5 C-2, C-4
3′ 2.50 22.1 C-2 4.02 s 44.9 C-2
5′ 2.29 s 15.7 C-7