Table 2.

¹³C-NMR chemical shifts for 1–4, 6 and 11 (in CDCl3, 150 MHz)^a

position	1	2	3	4	6	11
1	39.61	38.59	38.65	38.36	39.64	38.64
2	34.09	27.38	27.33	27.02	34.18	27.37
3	217.69	78.90	78.86	76.80	218.13	78.91
4	47.25	38.86	38.83	41.89	47.35	38.85
5	54.86	55.28	55.21	49.90	54.95	55.24
6	19.64	18.28	18.22	18.44	19.70	18.28
7	33.62	34.28	34.20	34.04	33.59	34.17
8	40.65	40.65	40.67	40.82	40.81	40.72
9	49.83	50.36	50.31	50.36	49.82	50.25
10	36.86	37.20	37.15	37.04	36.91	37.16
11	21.50	20.96	20.75	21.37	21.50	20.89
12	25.15	27.27	27.51	26.62	25.18	27.31
13	37.73	36.63	37.24	37.95	38.20	37.01
14	41.93	41.80	42.29	42.80	42.92	42.66
15	26.86	26.79	28.98	27.39	27.45	27.17
16	33.13	32.85	28.73	35.43	35.54	34.96
17	80.17	80.29	59.27	43.00	43.02	43.05
18	48.30	49.17	47.97	48.85	48.27	49.68
19	48.03	52.25	51.06	43.79	47.98	52.61
20	149.64	212.20	211.78	154.73	150.59	212.91
21	29.39	27.55	27.64	31.75	29.86	27.64
22	38.47	38.70	32.42	39.83	39.99	39.84
23	26.63	27.99	27.96	72.11	26.67	27.97
24	21.00	15.38	15.36	11.23	21.05	15.37
25	16.04	16.17	16.13	16.46	15.98	16.07
26	15.90	16.03	15.82	16.00	15.81	15.90
27	13.76	13.17	14.23	14.56	14.50	14.46
28			206.08	17.70	18.03	17.97
29	109.65	29.94	30.23	106.82	109.40	29.17
30	19.28			65.01	19.33

^aThe assignments were based on ¹H-¹H COSY, HMQC and HMBC experiments.