TABLE 1.

¹H NMR data for compounds 1 (at 500 MHz) and 2 (at 400 MHz) in CDCl₃.

	Compound 1			Compound 2		Literature report (compd 2) a
Position	1 H (δ in ppm; mult, J in Hz)	13 C (mult)	1 H (δ in ppm; mult, J in Hz)	13 C (mult)	1 H (δ in ppm)	13 C
1	0.97, 1.62	38.9 (CH2)	0.98, 1.97	40.9 (CH2)	0.94, 1.94	40.7
2	0.82 (m)	18.0 (CH)	1.44, 1.51	18.9 (CH2)	1.40, 1.47	18.7
3	1.41, 1.30	35.4 (CH2)	1.16, 1.42	41.8 (CH2)	1.14, 1.43	41.6
4	—	37.7 (C)	—	34.5 (C)	—	34.3
5	1.22	48.4 (CH)	1.23 (br d)	47.8 (CH)	1.28	47.6
6	1.57 (m)	21.3 (CH2)	1.83, 1.61	31.6 (CH2)	1.65, 1.87	31.4
7	1.67 (m)	30.5 (CH2)	5.21 (dd, 10.4,5.2)	95.1 (CH)	5.26	94.9
8	1.51	34.9 (CH)	4.47 (d, 8.9)	67.4 (CH)	4.52	67.2
9	1.38 (d, 3.7)	43.9 (CH)	1.23 (d, 4.0)	56.6 (CH)	1.21	56.4
10	—	36.7 (C)	—	39.2 (C)	—	39.0
11	2.23 (d,4.3), 2.08	26.1 (CH2)	1.74, 1.21 (d, 4.0)	21.4 (CH2)	1.76, 1.30	21.2
12	6.74 (t, 4.0)	141.0 (CH)	1.78 (m), 2.04 (d, 2.1)	32.0 (CH2)	2.09, 1.83	31.8
13	—	142.0 (C)	—	135.9 (C)	—	135.8
14	2.70 (q, 6.2)	31.4 (CH)	—	129.9 (C)	—	129.6
15	—	198.0 (C)	2.31 (d, 7.1), 1.64 (d. 5.3)	30.4 (CH2)	2.37, 1.30	30.2
16	4.44 (d, 17.6), 4.56 (d, 17.6)	64.4 (CH2)	3.84 (td, 11.4, 3.8), 3.69 (dd, 11.0, 5.7)	56.4 (CH2)	3.66, 3.82	56.2
17	0.86 (d, 6.2)	15.1 (CH3)	5.72 (br s)	88.6 (CH)	5.70	88.4
18	3.12, 3.42	72.1 (CH2)	0.89 (s)	33.2 (CH3)	0.87	33.0
19	0.80	18.0 (CH3)	0.87 (s)	22.5 (CH3)	0.85	22.3
20	0.88	22.5 (CH3)	0.90 (s)	15.7 (CH3)	0.88	15.5

^aManríquez-Torres et al. (2013).