TABLE 1.

¹H (500 MHz) and ¹³C (125 MHz) NMR data of compounds 1‒3 in DMSO-d ₆.

No	1		2		3
	δ C, type	δ H, J in Hz	δ C, type	δ H, J in Hz	δ C, type	δ H, J in Hz
1	165.2, C	—	165.2, C	—	165.2, C	—
2	100.0, C	—	100.1, C	—	100.1, C	—
3	166.1, C	—	166.1, C	—	166.3, C	—
4	101.8, CH	5.76, s	101.8, CH	5.75, s	101.6, CH	5.74, s
5	160.9, C	—	160.9, C	—	160.8, C	—
6	36.5, CH2	3.54, s	36.6, CH2	3.55, s	36.5, CH2	3.53, s
7	133.2, C	—	133.2, C	—	133.2, C	—
8	121.3, CH	6.74, dd (7.6, 2.1)	121.3, CH	6.75, d (7.6)	121.2, CH	6.75, d (7.7)
9	130.5, CH	7.22, t (7.7)	130.5, CH	7.22, t (7.9)	130.5, CH	7.21, t (7.9)
10	115.0, CH	6.80, t (8.7)	115.0, CH	6.80, d (8.2)	114.9, CH	6.80, d (8.2)
11	154.2, C	—	154.2, C	—	154.2, C	—
12	131.2, C	—	131.3, C	—	131.2, C	—
13	200.4, C	—	200.4, C	—	200.6, C	—
14	116.0, C	—	116.0, C	—	116.0, C	—
15	165.5, C	—	165.5, C	—	165.5, C	—
16	101.1, CH	6.13, d (2.3)	101.8, CH	6.14, s	101.1, CH	6.13, d (2.1)
17	163.7, C	—	163.6, C	—	163.6, C	—
18	112.0, CH	6.09, d (2.0)	112.0, CH	6.09, s	112.0, CH	6.09, d (1.7)
19	143.4, C		143.4, C		143.4, C
20	21.9, CH3	1.83, s	21.9, CH3	1.84, s	21.9, CH3	1.84, s
1′	161.9, C	—	165.2, C	—	165.1, C	—
2′	100.1, C	—	100.1, C	—	100.0, C	—
3′	166.3, C	—	166.1, C	—	166.2, C	—
4′	101.7, CH	5.70, s	101.8, CH	5.75, s	101.5, CH	5.74, s
5′	161.4, C	—	160.9, C	—	161.2, C	—
6′	37.0, CH2	3.47, s	36.6, CH2	3.55, s	36.7, CH2	3.48, s
7′	134.8, C	—	133.2, C	—	135.8, C	—
8′	120.9, CH	6.74, dd (7.6, 2.1)	121.3, CH	6.75, d (7.6)	109.5, CH	6.16, d (1.9)
9′	129.1, CH	7.17, t (7.9)	130.5, CH	7.22, t (7.9)	160.1, C
10′	114.4, CH	6.80, t (8.7)	115.0, CH	6.80, d (8.2)	101.9, CH	6.23, d (1.9)
11′	154.7, C	—	154.2, C	—	157.8, C	—
12′	129.6, C	—	131.3, C	—	121.5, C	—
13′	141.1, C	—	200.4, C	—	200.3, C	—
14′	111.3, CH	5.95, d (2.4)	116.0, C	—	117.6, C	—
15′	162.4, C	—	165.5, C	—	163.2, C	—
16′	102.3, CH	6.27, d (2.4)	101.8, CH	6.14, s	100.9, CH	6.11, s
17′	163.6, C	—	163.6, C	—	162.4, C	—
18′	115.9, C	—	112.0, CH	6.09, s	111.3, CH	6.06, s
19′	203.6, C	—	143.4, C	—	142.1, C	—
20′	30.3, CH3	1.87, s	21.9, CH3	1.84, s	21.4, CH3	1.83, s
1″	17.8, CH2	3.25, s	17.8, CH2	3.24, s	17.7, CH2	3.24, s
11-OH	—	9.81, s	—	9.82, s	—	9.83, s
15-OH	—	12.66, s	—	12.68, s	—	12.68, s
17-OH	—	10.44, s	—	10.45, s	—	10.45, s
9′-OH	—	—	—	—	—	9.88, s
11′-OH	—	9.48, s	—	9.82, s	—	10.26, s
15′-OH	—	10.36, s	—	12.68, s	—	12.05, s
17′-OH	—	12.50, s	—	10.45, s	—	10.21, s