Table 1. ¹³C NMR (150 MHz) Spectroscopic Data for Compounds 1–5 in CD₃OD^a.

no.	1	2	3	4	5
1	210.7	213.0	206.2	205.8	206.9
2	39.9	43.2	127.6	127.6	128.7
3	77.6	69.3	142.7	142.3	144.5
4	73.7	78.4	76.0	35.2	36.6
5	63.5	64.7	73.4	76.5	78.3
6	58.6	60.7	73.4	73.1	75.4
7	24.1	27.1	27.8	27.8	28.8
8	35.0	34.0	35.7	33.5	34.7
9	38.0	41.8	35.3	34.4	33.2
10	52.1	52.0	51.6	51.6	55.5
11	20.2	21.8	23.0	22.1	22.5
12	32.9	37.5	32.3	32.8	36.7
13	50.3	54.4	44.2	43.2	54.0
14	81.3	82.2	81.1	82.0	79.4
15	83.4	88.4	82.6	83.4	211.5
16	121.1	39.9	32.9	33.3	129.8
17	161.6	86.7	52.2	51.9	189.4
18	14.8	21.2	14.1	15.0	19.9
19	13.3	15.0	14.0	13.0	14.4
20	35.0	83.7	78.6	79.4	38.2
21	16.8	15.0	10.9	19.8	17.6
22	79.9	80.6	78.6	77.0	81.0
23	27.1	33.9	32.3	28.6	34.5
24	152.8	153.9	152.8	153.1	152.5
25	120.8	121.7	120.2	120.2	122.2
26	167.7	169.6	168.4	168.8	168.7
27	10.5	9.2	8.6	10.3	12.4
28	60.2	21.4	19.1	18.5	20.4
CH3CO-1′	170.1	171.4	170.1	171.0
CH3CO-2′	19.9	20.5	19.9	19.1
OMe	52.1

^aChemical shifts are in ppm, and the assignments were based on HSQC, HMBC, and NOSEY spectra.