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. 2012 Feb 27;10(3):539–550. doi: 10.3390/md10030539

Table 2.

¹H and¹³C NMR data of compounds 4–5.

Position	4 ^b		5 ^a
Position	δ_C_,mult.	δ_H ( J in Hz)	δ_C_,mult.	δ_H ( J in Hz)
1	24.8, CH₂	1.55, 2m	29.1, CH₂	1.63, 2m
2	18.9, CH₂	1.61, 2m	17.9, CH₂	1.67, 2m
3	38.7, CH₂	1.64, m; 1.11, m	36.3, CH₂	1.71, m; 1.53, m
4	37.4, C		36.7, C
5	80.0, C		82.6, C
6	107.2, C		210.9, C
7	74.6, CH	4.48, s	74.6, CH	5.23, s
8	132.6, C		131.8, C
9	141.7, C		139.8, C
10	52.1, C		50.7, C
11α	21.7, CH₂	2.19, ddd (13.6, 5.8, 2.9)	21.2, CH₂	2.15, m
11β	21.7, CH₂	1.92, m	21.2, CH₂	1.90, m
12α	28.0, CH₂	1.80, m	30.2, CH₂	1.83, m
12β	28.0, CH₂	1.41, m	30.2, CH₂	1.49, m
13	39.6, C		39.7, C
14	70.6, CH	4.01, s	72.4, CH	4.13, s
15	146.2, CH	6.07, dd (17.5, 11.1)	142.0, CH	6.03, dd (17.3, 1.4)
16a	112.1, CH₂	5.07, dd (17.5, 1.5)	114.8, CH₂	5.23, dd (17.3, 1.4)
16b	112.1, CH₂	5.05, dd (11.1, 1.5)	114.8, CH₂	5.21, dd (11.4, 1.4)
Position	4 ^b		5 ^a
Position	δ_C_,mult.	δ_H (J in Hz)		δ_C_,mult.
17	21.3, CH₃	0.93, s	22.8, CH₃	1.08, s
18	24.3, CH₃	1.46, s	23.8, CH₃	1.46, s
19	28.9, CH₃	1.23, s	27.8, CH₃	1.07, s
20	72.4, CH₂	4.13, d (9.2)	23.5, CH₃	1.07, s
20		3.40, d (9.2)

^a Measured in CDCl₃; ^b Measured in CD₃OD. 500 MHz for ¹H NMR; 125 MHz for ¹³C NMR.