Table 1.

¹H NMR and ¹³C NMR data for compounds 1 and 7.

	1a			7b
Position	δC	δH (J Hz)	Position	δC	δH (J Hz)
1a	43.8	1.12, m	2	161.6
1b		1.18, m	3	87.5	5.65, s
2a	18.7	1.53, m	4	169.1
2b		1.76, m	5	149.2
3a	38.3	1.20, m	6	107.7	7.26, s
3b		1.69, m	7	131.4
4	39.2		8	143.7
5	45.9	1.80, m	9	132.1
6	69.3	5.67, m	10	105.9
7a	28.8	2.12, m	11	65.4	4.67, d (6.5)
7b		2.47, m	12	119.8	5.47, d (6.5)
8	37.0	2.87, t (8.0)	13	137.3
9	50.7	2.40, m	14	18.1	1.74, s
10	35.7		15	25.5	1.76, s
11a	69.4	4.28,dd (5.5,10)	16	61.2	4.80, d (4.0)
11b		4.47, d (9.5)	17	56.7	3.94, s
12	181.2
13	20.3	0.88, s
14a	71.2	3.03, d (6.5)
14b		3.56, d (6.0)
15	19.1	1.43, s
1′	168.1
2′	132.0
3′	130.6	7.95,dd (1.5,7.0)
4′	129.6	7.48, d (8.0)
5′	134.1	7.60, t (7.5)
6′	129.6	7.47, d (7.5)
7′	130.6	7.97, dd (1.5,7.0)

^aRecorded in MeOD. ^brecorded in DMSO-d₆.