. 2019 Nov 23;24(23):4276. doi: 10.3390/molecules24234276

Table 1.

¹H and ¹³C NMR spectral data of compounds 1, 2, and 3.

Atom	1 ^{a, c}		2 ^a,c		3 ^b,c
Atom	δ_C	δ_H	δ_C	δ_H	δ_C	δ_H
1α	41.0	1.07 ddd 12.5/12.5/6.0	46.7	1.34 dd 14.0/3.2	78.4	3.57 d 10.0
1β		1.38 d 12.5		1.67 m
2α	20.1	1.58 m	68.2	4.28 ddd 7.0/3.0/3.0	72.9	3.48 dd 10.0/10.0
2β		1.56 m
3α	43.5	1.35 ddd 12.5/12.5/5.5	48.5	1.66 m	78.7	3.04 d 10.0
3β		1.79 d 12.5		2.01 d 14.0
4	72.3		71.6		38.1
5	55.0	1.19 d 12.5	54.4	1.29 dd 12.5/2.0	47.1	1.16 dd 5.0/12.0
6α	21.4	1.86 d 12.5	21.2	1.87 d 12.5	22.4	2.20 dd 12.0/17.0
6β		1.03 ddd 12.5/12.5/12.5		1.14 ddd 12.5/12.5/12.5		2.15 dd 5.0/5.0/17.0
7	48.3	1.41 dddd 12.5/12.5/3.0/3.0	48.5	1.42 dddd 12.5/12.5/3.0/3.0	119.5	5.49 d 5.0
8α	21.8	1.59 d 12.5	21.2	1.56 d 12.5	142.1
8β		1.33 dddd 12.5/12.5/12.5/3.0		1.37 dddd 12.5/12.5/12.5/3.5
9α	44.6	1.45 ddd 12.5/3.0/3.0	44.9	1.49 ddd 12.5/3.0/3.0	144.0
9β		1.15 ddd 12.5/12.5/3.0		1.12 m
10	34.6		34.0		43.2
11	74.5		74.6		119.1	6.31 d 6.0
12α	39.7	1.53 dd 8.2/8.2	39.5	1.52 dd 8.1/8.1	36.4	2.18 d 17.0
12β						2.06 d 6.0/17.0
13	22.3	2.06 m	22.3	2.04 m	42.0
14	124.6	5.14 dd 7.0/7.0	124.5	5.13 dd 6.7/6.7	49.9
15α	131.6		131.6		31.1	1.68 ddd 7.5/11.5/11.5
15β						1.46 dd 9.0/11.5
16α	17.6	1.63 s	17.8	1.62 s	25.8	2.07 ddd 9.0/14.0/17.0
16β						1.60 dd 9.0/14.0
17	25.7	1.69 s	25.8	1.68 s	53.0	1.78 dd 9.0/17.0
18	24.1	1.16 s	24.2	1.16 s	15.4	0.57 s
19	18.7	0.86 s	20.3	1.14 s	15.9	1.06 s
20	22.6	1.11 s	25.0	1.33 s	70.4	3.62 dd 6.2/9.0
21					22.4	1.21 d 6.2
22					15.9	0.90 s
23					27.6	1.02 s
24					24.9	0.91 s

^a Data were measured at 500 MHz for ¹H and 125 MHz for ¹³C in CDCl_3, δ in ppm, J in Hz.; ^b Data were measured at 300 MHz for ¹H and 75 MHz for ¹³C in CDCl₃:CD₃OD = 1:1, δ in ppm, J in Hz.; ^c Overlapping signals were assigned by HSQC, HMBC, COSY, and SELTOCSY experiments.