Table 1.

¹³C- and ¹H-NMR data (150 and 600 MHz in CDCl₃; δ in ppm, J in Hz) of 1 and 2.

No.	1		2
	δC	δH	δC	δH
1	40.2 (CH)	3.10 ddd (3.4, 8.3, 11.7)	39.1 (CH)	3.12 ddd (2.8, 8.3, 11.7)
2	77.6 (CH)	5.53 dd (8.3, 11.0)	77.1 (CH)	5.48 dd (8.3, 11.0)
3	119.8 (CH)	4.90 d (11.0)	120.0 (CH)	5.00 d (11.0)
4	143.8 (C)		142.4 (C)
5	39.6 (CH2)	2.16 m	43.1 (CH2)	2.78 m
		1.80 dt (4.8, 12.4)		2.76 m
6	24.2 (CH2)	2.39 m	128.6 (CH)	5.80 td (8.3, 15.8)
		2.03 m
7	125.6 (CH)	4.70 br d (8.9)	136.4 (CH)	5.46 d (15.8)
8	133.2 (C)		84.4 (C)
9	39.5 (CH2)	2.31 br d (13.8)	37.7 (CH2)	1.77 m
		2.14 m		1.72 m
10	22.9 (CH2)	2.14 m	22.5 (CH2)	2.36 m
		2.00 m		1.96 m
11	129.8 (CH)	5.23 dd (5.5, 9.6)	130.5 (C)	5.31 dd (4.1, 10.3)
12	132.0 (C)		131.9 (C)
13	77.3 (CH)	5.04 d (11.0)	76.8 (CH)	5.00 d (11.7)
14	32.4 (CH2)	2.41 m	32.6 (CH2)	2.20 ddd (2.8, 11.7, 14.4)
		1.54 m		1.52 dd (11.7, 14.4)
15	138.3 (C)		138.1 (C)
16	170.3 (C)		170.2 (C)
17	120.2 (CH2)	6.25 d (3.4)	120.9 (CH2)	6.28 d (3.4)
		5.49 d (3.4)		5.52 d (3.4)
18	15.1 (CH3)	1.75 s	16.1 (CH3)	1.91 s
19	15.2 (CH3)	1.58 s	20.7 (CH3)	1.42 s
20	10.2 (CH3)	1.60 s	10.2 (CH3)	1.61 s
13-OAc	170.9 (C)		170.9 (C)
	21.2 (CH3)	2.05 s	21.2 (CH3)	2.05 s