Table 2. ¹³C NMR Spectroscopic Data of Compounds 1–5 in CD₃OD.

position	GB (1)	2	3	4	5
1	75.5	75.5	80.5	43.6	79.3
2	93.3	95.2	88.4	83.9	98.7
3	84.7	84.8	86.7	87.4	60.5
4	100.2	100.7	104.1	104.0	96.7
5	69.2	68.2	78.5	73.9	75.8
6	80.7	81.4	84.0	93.6	82.5
7	38.1	37.8	36.5	36.8	37.0
8	50.5	54.8	58.8	58.2	55.1
9	73.5	73.3	70.3	68.8	68.5
10	70.7	71.2	72.0	72.9	71.4
11	175.2	177.3	174.7	174.5	177.3
12	111.9	110.9	110.6	111.5	110.1
13	172.7	175.1	176.3	176.2	179.4
14	43.3	43.9	41.5	41.2	40.3
15	178.4	180.2	179.6	179.7	176.8
16	8.1	8.1	13.9	14.2	16.2
17	33.3	34.3	34.6	34.5	34.3
18–20	29.5	30.6	30.5	30.5	30.7
1′		42.3	42.0	41.9	42.3
2′		23.3	23.6	23.6	23.3
3′		11.8	11.8	11.8	11.8
1″			41.9	41.9	42.3
2″			23.5	23.5	23.0
3″			11.7	11.7	11.8