Table 1.

¹H- and ¹³C-NMR data of compounds 1 and 2 (500/125 MHz, respectively, in CDCl₃; δ in ppm, J in Hz).

No.	Compound 1		Compound 2
	C	H	C	H
1	141.3 s		137.9 s
2	131.6 s		132.2 s
21	12.1 q	3.47 s	17.1 q	3.64 s
3	136.3 s		139.9 s
31	129.0 d	8.02 dd 11.5, 17.5	129.5 d	8.00 dd 11.5, 17.5
32	122.7 t	6.20 dd 2.3, 17.5 6.36 dd 2.3, 11.5	125.0 t	6.22 dd 2.3, 17.5 6.34 dd 2.3, 11.5
4	135.1 s		133.7 s
5	99.5 s	9.55 s	99.9 d	9.72 s
6	156.0 s		154.1 s
7	136.1 s		137.3 s
71	11.3 q	3.29 s	11.3 q	3.32 s
8	145.5 s		144.9 s
81	19.6 t	3.76 q 7.0	19.5 t	3.77 q 7.0
82	17.6 q	1.73 t 7.0	17.4 q	1.74 t 7.0
9	150.0 s		152.1 s
10	104.1 d	9.78 s	103.8 d	9.72 s
11	139.1 s		139.5 s
12	131.4 s		131.0 s
121	12.5 q	3.94 s	12.4 q	3.78 s
13	112.2 s		128.1 s
131	161.4 s		191.8 s
132			89.3 s
133			172.8 s
14	136.3 s		149.0 s
15	101.5 s		108.3 s
151	106.3 s
152	169.1 s
16	167.8 s		162.9 s
17	53.9 d	4.82 d 7.0	51.8 d	4.20 d 7.5
171	32.2 t	1.90 m; 2.62 m	31.6 t	1.92 m; 2.60 m
172	32.5 t	2.21 m; 2.48 m	30.8 t	2.20 m; 2.46 m
173	173.2 s		173.5 s
18	50.0 d	4.45 q 7.0	50.0 d	4.89 q 7.0
181	22.6 q	1.62 d 7.0	19.7 q	1.50 d 7.0
19	171.8 s		171.2 s
20	94.0 d	8.75 s	106.4s
1’	61.3 t	4.43 d 7.0	61.6 t	4.62 d 7.0
2’	117.8 d	5.16 t 7.0	117.8 d	5.26 t 7.0
3’	142.6 s		142.8 s
4’	39.8 t	1.90 m	39.8 t	1.88 m
5’	24.8 t	1.60 m; 1.72 m	24.8 t	1.62 m; 1.70 m
6’	36.6 t	1.00 m; 1.20 m	36.6 t	1.00 m; 1.20 m
7’	32.6 d	1.30 m	32.6 d	1.32 m
8’	37.4 t	1.03 m; 1.26 m	37.3 t	1.03 m; 1.26 m
9’	24.8	1.28 m	25.0 t	1.28 m
10’	36.7 t	1.26 m	37.3 t	1.26 m
11’	32.6 d	1.30 m	32.8 d	1.30 m; 1.26 m
12’	37.3 t	1.03 m; 1.26 m	37.2 t	1.03 m; 1.26 m
13’	24.4 t	1.60 m	24.4 t	1.60 m
14’	39.4 t	1.15 m	39.3 t	1.15 m
15’	28.0 d	1.51 m	27.9 d	1.50 m
16’	22.7 q	0.87 d 6.8	22.7 q	0.87 d 6.8
17’	22.6 q	0.87 d 6.8	22.6 q	0.87 d 6.8
18’	16.2 q	1.56 s	16.3 q	1.66 s
19’	19.6 q	0.76 d 6.5	19.6 q	0.84 d 6.5
20’	19.7 q	0.82 d 6.5	19.7 q	0.83 d 6.5