Table 1. ¹H and ¹³C NMR data for 8 and ¹H NMR data for 9 (500 MHz for ¹H NMR and 125 MHz for ¹³C NMR).

Position	¹H (8); in CD₃OD	¹H (9); in CDCl₃	¹³C (8): in CD₃OD
2			165.3
3			120.0
4			167.5
5			117.3
6			155.6
7	7.20 d (9.0)	7.08 d	115.7
8	7.24 d (9.0)	7.15 d	115.8
9			148.6
10			123.8
11	2.60 s	2.61 s	12.5
1′ab	2.65 m		23.2
2′ab	1.65 m		32.8
3′	1.37 m		36.7
4′a	3.40 dd, (11, 6)		67.7
4′b	3.47 dd, (11, 6)
5′	1.01 d (6.7)		16.9
4-OMe	3.85 s		62.3
6-OMe	3.87 s	3.85 s	56.9

Table 1. 1H and 13C NMR data for 8 and 1H NMR data for 9 (500 MHz for 1H NMR and 125 MHz for 13C NMR).