Table 2.

¹H (400 MHz) and ¹³C (100 MHz) NMR data of 5 and 6 in CD₃OD.

Position	5		6
	δC Type	δH (J in Hz)	δC Type	δH (J in Hz)
1	178.4, C		178.7, C
3	55.3, CH	3.37, dd, 6.1, 3.5	55.1, CH	3.31, m
4	51.9, CH	2.46, dd, 5.1, 3.5	50.8, CH	2.61, m
5	33.8, CH	2.75, m	34.0, CH	2.92, m
6	151.7, C		151.9, C
7	72.7, CH	3.82, d, 10.8	72.5, CH	3.83, d, 10.7
8	45.8, CH	2.89, d, 10.1	50.2, CH	2.88, m
9	56.1, C		54.9, C
10	44.8, CH2	Ha 2.86, dd, 10.3, 6.2Hb 2.77, m	46.6, CH2	Ha 2.92, mHb 2.59, dd, 13.6, 8.2
11	13.8, CH3	0.80, d, 6.7	14, CH3	1.11, d, 6.7
12	113.1, CH2	Ha 5.22, s	113.1, CH2	Ha 5.34, s
		Hb 5.01, s		Hb 5.12, s
13	131.2, CH	5.72, dd, 15.5, 9.5	129.4, CH	5.73, dd, 15.5, 9.8
14	135.4, CH	5.54, m	138.7, CH	5.33, m
15	43.7, CH2	Ha 2.05, dd, 12.4, 5.6Hb 1.65, d, 12.4	45, CH2	Ha 2.02, mHb 1.81, m
16	28.7, CH	1.87, m	29.4, CH	1.80, m
17	48.7, CH2	Ha 1.75, dd, 14.8, 3.2Hb 1.45, dd, 14.8, 3.8	55, CH2	Ha 1.90, dd, 14.4, 3.4Hb 1.57, dd, 14.4, 3.3
18	73.6, C		75.1, C
19	63.1, CH	3.21, d, 2.4	137.5, CH	5.75, dd, 16.8, 2.2
20	57.7, CH	2.99, m	132.2, CH	6.03, dd, 16.8, 2.6
22	26.2, CH3	1.02, d, 6.8	26.7, CH3	1.04, d, 6.6
23	23.5, CH3	0.92, s	31.8, CH3	1.36, s
1’	138.5, C		137.5, C
2’/6’	131.2, CH	7.22, d, 7.2	131.1, CH	7.15, dd, 8.0, 1.3
3’/5’	129.6, CH	7.31, t, 7.2	129.5, CH	7.32, dd, 8.0, 7.1
4’	128.0, CH	7.25, dt, 7.2, 3.6	127.8, CH	7.24, dd, 7.1, 1.3