¹H and ¹³C NMR data^a (δ in ppm) of 11 and 12 in C₅D₅N.

No.	11		12
	δ H (J in Hz)b	δ C c	δ H (J in Hz)b	δ C c
1α	1.60, m	41.1	1.55, m	41.3
1β	2.70 br d (11.7)		2.75, br d (13.2)
2	1.69, m; 1.78, m	23.7	1.74, m; 1.99, m	24.2
3	5.75, dd (12.0, 5.6)	78.0	5.82, dd (12.1, 4.5)	78.1
4		52.4		52.6
5	2.09, br d (11.3)	51.7	2.05, br d (10.0)	51.7
6	1.60, m; 1.78, m	21.3	1.58, m; 1.75, m	21.3
7	1.27, m; 1.73, m	33.9	1.25, m; 1.70, m	34.4
8		42.8		41.5
9	2.15, d (8.8)	52.5	2.10, d (10.4)	50.8
10		38.1		37.8
11	5.36, d (8.8)	68.1	4.77, d (10.4)	67.7
12		146.6		145.6
13		113.9		121.6
14		41.0		43.2
15	0.92, m; 1.75, m	27.3	0.92, m; 1.73, m	27.2
16	0.79, m; 2.02, m	27.9	0.77, m; 2.00, m	27.8
17		33.3		33.6
18	2.68, d (10.7)	46.0	2.86, d (11.1)	46.6
19	1.50, m	41.3	1.47, m	39.8
20	0.76, m	39.5	1.01, m	39.7
21	1.25, m; 1.31, m	31.6	1.28, m; 1.45, m	31.5
22	1.28, m; 1.41, m	41.9	1.29, m; 1.40, m	41.3
23		179.2		179.2
24	1.62, s	12.9	1.52, s	12.8
25	1.45, s	17.2	0.80, s	16.2
26	1.20, s	18.2	1.14, s	18.6
27	1.34, s	24.2	1.32, s	23.9
28	0.91, s	28.9	0.88, s	28.6
29	1.32, d (6.2)	17.1	1.25, d (6.5)	18.0
30	0.88, d (6.2)	21.0	0.91, d (6.4)	21.0
1′		132.1		128.0
2′	7.37, br s	112.0	7.49, br s	115.0
3′		148.6		148.2
4′		148.2		148.1
5′	7.28, d (7.9)	116.4	7.26, d (7.8)	115.8
6′	7.23, br d (7.9)	121.1	7.48, br d (7.8)	123.5
7′	5.22, d (10.4)	77.9	5.20, d (3.7)	75.2
8′	4.99, dd (10.5, 3.1)	77.6	4.88, ddd (7.1, 5.5, 3.7)	81.2
9′	3.88, dd (11.9, 4.6)	62.2	4.03, dd (12.0, 5.5)	62.7
	4.04, br d (11.9)		4.29, dd (12.0, 7.1)
	3.86, s	55.9	3.83, s	55.9
		169.9		170.0
	1.91, s	21.3	1.91, s	21.2

^aAssignments were made by a combination of 1D and 2D NMR experiments.

^bmeasured at 400 MHz.

^cmeasured at 150 MHz.