Table 1.

¹³C and ¹H-NMR data of compounds 1 and 2 in CDCl₃.

No.	1				2
	13C		1H (J in Hz)		13C		1H (J in Hz)
1	167.0	s	-	-	166.5	s	-	-
2	119.0	s	-	-	128.2	s	-	-
3	106.0	d	-	6.38 brs	140.0	d	-	6.63 brd (6.7)
4	156.4	s	-	-	23.8	t	a	2.34 m
-	-	-	-	-	-	-	b	2.21 ddd (3.1, 6.7, 17.7)
5	38.1	t	-	3.28 s (2H)	81.9	d	-	4.30 dd (3.1, 12.9)
6	130.9	s	-	-	38.9	s	-	-
7	127.2	d	-	5.24 m	31.8	t	α	1.56 m
-	-	-	-	-	-	-	β	1.30 m
8	26.3	t	-	2.16 m (2H)	17.4	t	-	1.51 m (2H)
9	39.2	t	-	2.06 m (2H)	37.8	t	α	0.97 dt (3.1, 12.6)
-	-	-	-	-	-	-	β	1.67 m
10	139.7	s	-	-	38.9	s	-	-
11	124.9	d	-	5.24 m	46.6	d	-	1.73 dd (2.6, 11.3)
12	75.9	d	-	4.56 dt (8.4, 5.9)	17.5	t	α	1.55 m
-	-	-	-	-	-	-	β	1.47 m
13	39.4	t	a	2.58 dd (5.9, 15.0)	41.6	t	α	1.65 m
-	-	-	b	2.23 m	-	-	β	1.70 m
14	139.8	s	-	-	73.0	s	-	-
15	119.2	d	-	5.33 m	58.8	d	-	1.05 brs
16	29.9	t	-	2.16 m (2H)	26.0	t	a	1.68 m
-	-	-	-	-	-	-	b	1.54 m
17	24.6	t	-	2.48 t (7.5) (2H)	28.4	t	a	2.44 m
-	-	-	-	-	-	-	b	2.39 m
18	124.5	s	-	-	125.4	s	-	-
19	110.9	d	-	6.26 brs	110.9	d	-	6.29 brs
20	142.7	d	-	7.34 brs	142.6	d	-	7.35 brt (1.5)
21	138.9	d	-	7.21 brs	138.6	d	-	7.25 brs
22	68.3	t	a	4.39 d (13.0)	30.5	q	-	1.18 s
-	-	-	b	4.20 d (13.0)	-	-	-	-
23	16.7	q	-	1.70 brs	15.9	q	-	1.03 s
24	15.9	q	-	1.60 brs	17.4	q	-	0.87 s
25	147.7	d	-	7.96 brs	16.9	q	-	1.92 s