Table 2. ¹³C NMR spectral data of compounds 1−5 in CDCl₃.

	1	2	3	4	5
1	36.6	35.0	36.5	35.4	36.6
2	34.9	27.7	34.7	34.4	34.8
3	216.6	78.5	216.4	215.0	216.9
4	47.5	38.6	47.4	47.2	47.4
5	50.3	48.2	50.4	49.7	50.5
6	23.8	24.0	23.5	37.2	23.7
7	119.8	76.1	124.1	198.0	119.8
8	142.9	135.7	142.2	139.6	142.9
9	144.5	139.5	149.9	162.8	144.5
10	37.3	37.5	38.5	39.3	37.3
11	117.3	21.5	118.2	23.8	117.3
12	37.8	30.2	79.2	30.2	37.8
13	43.8	45.0	49.0	45.0	43.8
14	50.7	49.7	52.9	51.5	52.1
15	31.5	31.8	31.0	73.4	74.2
16	27.9	28.5	27.0	39.7	40.3
17	51.0	49.6	52.5	50.5	50.2
18	15.7	16.3	11.7	15.9	15.7
19	22.5	17.5	21.7	17.9	22.5
20	36.5	36.4	35.6	36.2	36.4
21	18.6	18.5	18.4	18.4	18.6
22	31.4	34.5	34.7	34.7	34.4
23	28.9	28.8	28.7	28.7	28.9
24	70.9	79.5	79.7	79.7	79.3
25	74.9	73.5	74.5	73.7	73.8
26	62.2	67.7	26.5	26.5	67.9
27	62.8	22.2	23.2	23.2	22.0
28	25.4	27.4	27.6	27.6	25.4
29	25.3	15.4	20.2	20.2	21.2
30	21.2	25.2	25.5	25.5	25.3
-OCH3		55.5	55.8