TABLE 1.

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

	1 (in DMSO-d6)		1 (in acetone-d6)
Position	δC, type	δH, (J in Hz)	δC, type	δH, (J in Hz)
1a	32.4, CH2	1.38-1.42, m	32.9, CH2	1.55-1.58, m
1b		1.29-1.36, m		1.48-1.54, m
2a	26.4, CH2	1.97, dt (13.5, 2.6)	26.9, CH2	2.08-2.17, m
2b		1.42-1.47, m		1.55-1.58, m
3	68.9, CH	3.76-3.80, m	70.2, CH	3.97-4.00, m
4	46.9, C		49.2, C
5	47.6, CH	1.38-1.42, m	48.6, CH	1.41-1.47, m
6	22.2, CH2	1.53-1.66, m	22.8, CH2	1.72-1.78, m
7a	27.4, CH2	1.83-1.86, m	27.4, CH2	1.95-1.97, m
7b		0.90, dd (13.0, 4.6)		1.05-1.11, m
8	47.6, CH	1.29-1.36, m	48.3, CH	1.59-1.61, m
9	43.6, CH	1.42-1.47, m	44.4, CH	1.62-1.66, m
10	36.6, C		37.2, C
11a	32.9, CH2	1.83-1.86, m	33.2, CH2	1.98-2.02, m
11b		1.05, dd (12.3, 2.6)		1.17-1.22, m
12	63.4, CH	4.94-4.97, m	64.6, CH	5.16, t (3.0)
13	147.2, C		147.2, C
14	77.8, C		78.5, C
15	141.0, CH	6.40, dd (17.2, 10.9)	141.5, CH	6.54, dd (17.2, 10.9)
16a	110.7, CH2	5.15, dd (17.2, 2.5)	110.5, CH2	5.25, dd (17.2, 2.3)
16b		4.90, dd (10.9, 2.5)		4.93, dd (10.9, 2.3)
17	112.8, CH	6.24, s	113.8, CH	6.36, s
18	24.3, CH3	1.10, s	24.3, CH3	1.25, s
19	178.8, C		178.8, C
20	12.5, CH3	0.63, s	12.5, CH3	0.74, s
3-OH		4.45, d (4.4)
12-OH		4.99, d (2.9)
14-OH		4.69, s
19-COOH		11.99 br s