Table 3.

¹H-NMR and ¹³C-NMR data for 8, 9 and 11 (CDCl₃, δ in ppm, J in Hz)

Position	8		9		11
	δH	δC	δH	δC	δH	δC
1	–	48.2	–	47.8	–	154.3
2	2.22 t (7.2)	35.5	2.21 t (7.2)	35.6	7.06 bs	110.5
3	2.93 t (7.2)	31.2	2.93 t (7.2)	31.2	–	134.8
4	6.37 bs	101.0	6.35 bs	102.0	6.66 bs	103.5
5	–	160.8	–	160.5	–	145.0
6	6.28 bs	97.4	6.15 bs	101.0	–	114.5
7	–	157.5	–	153.6	–	138.7
8	–	125.8	–	126.9	–	155.6
9	–	145.7	–	146.5	–	117.1
10	3.75 s	55.6	3.72 s	55.6	7.04 d (8.0)	127.0
11	3.78 s	55.1	–	–	7.13 d (8.0)	121.2
12	–	–	–	–	–	128.3
13	–	–	–	–	2.59 s	15.2
14	–	–	–	–	–	150.2
15	–	–	–	–	5.23 bs 5.64 bs	110.7
16	–	–	–	–	2.31 s	22.7
1′	–	–	–	–	2.73 (7.2)	36.3
2′	2.40 m 2.53 dt (6.4, 13.2)	39.2	2.42 m 2.53 dt (6.4, 13.2)	39.2	1.55 m	29.9
3′	1.82 dd (2.8, 6.4) 2.63 dt (4.6, 13.2)	34.5	1.82 dd (2.8, 6.4) 2.67 dt (4.6, 13.2)	34.5	1.25 m	31.5
4′	–	213.3	–	214.5	1.25 m	22.7
5′	1.81 dd (2.8, 6.4) 2.63 dt (4.6, 13.2)	34.5	1.82 dd (2.8, 6.4) 2.67 dt (4.6, 13.2)	34.5	0.88 t (6.8)	14.2
6′	2.40 m 2.53 dt (6.4, 13.2)	39.2	2.42 m 2.53 dt (6.4, 13.2)	39.2	–	–

^*Assignments confirmed by DEPT-135, gHMQC, gCOSY and gHMBC experiments.