Table 7.

¹H and ¹³C NMR Data for compounds 15 and 16.

No.	15 a		16 b
	δC, Type	δH (J in Hz)	δC, Type	δH (J in Hz)
1	169.6, C		169.5, C
3	79.3, CH	4.63, m	80.8, CH	4.63, m
4	31.2, CH2	2.94, dd (16.4, 3.6)	32.7, CH2	2.96, dd (16.1, 4.1)
		2.83, dd (16.4, 10.9)		2.87, dd (16.1, 10.4)
5	117.5, CH	6.63, d (8.0)	118.6, CH	6.65, d (8.0)
6	121.6, CH	7.01, d (8.0)	122.4, CH	7.01, d (8.0)
7	144.4, C		145.7, C
8	149.9, C		151.0, C
9	108.4, C		109.4, C
10	129.1, C		130.7, C
11	29.3, CH2	1.96, m	30.7, CH2	2.09, m
12	29.1, CH2	2.42, m	30.3, CH2	2.58, m
13	173.8, C		174.4, C
1′			65.3, CH2	4.11, t (6.6)
2′			31.6, CH2	1.63, m
3′			19.9, CH2	1.40, m
4′			13.7, CH3	0.95, t (7.4)
OH-7		9.33, s
OH-8		10.82, s
OH-13		12.21, s

^a Recorded at 300 MHz (¹H) and 75 MHz (¹³C) in DMSO-d₆. ^b Recorded at 300 MHz (¹H) and 75 MHz (¹³C) in CD₃OD.