Table 2.

¹³C NMR spectroscopic data (100 MHz) for 1–4 in CDCl₃.^a

#	1	2	3	4
1	211.5	72.1	202.7	203.0
2	42.8	29.8	54.5	124.2
3	80.0	77.8	64.0	150.7
4	38.4	38.0	37.7	42.0
5	51.4	42.3	76.7	78.4
6	19.6	19.4	25.1	25.2
7	39.7	40.0	31.9	32.8
8	83.4	84.7	82.8	82.9
9	44.6	44.5	38.7	38.7
10	51.7	41.5	56.9	53.6
11	17.1	15.3	17.8	17.7
12	20.9	20.71	20.2	20.5
13	27.7	28.5	23.8	24.0
14	22.2	21.8	23.4	25.6
15	14.5	15.6	16.2	18.6
1′	168.4	168.9	168.4	168.4
2′	91.1	90.5	91.1	91.5
3′	191.2	191.5	191.3	191.3
4′	42.9	42.7	42.8	42.8
5′	75.8	75.6	75.9	75.8
6′	20.7	20.67	20.6	20.6

^aδ in ppm.