Table 2.

¹H (600 MHz) and ¹³C (150 MHz) NMR data (CDCl₃) for compounds 6 and 7.

	6		7
	δC	δH, multi (J in Hz)	δC	δH, multi (J in Hz)
1	74.6	5.00, brs	71.0	3.89, brs
2	22.3	1.78, q (3.0); 1.96, m	25.7	1.63, dq (3.1,14.8); 2.06, m
3	34.5	1.36, dt (2.5, 15.2); 1.53-1.63, m	34.1	1.33, dt (3.7, 12.8); 1.74, td (4.1, 14.1)
4	32.6	-	32.5	-
5	44.4	1.81, brd (12.8)	39.1	2.06, brd (13.2)
6	27.1	1.53–1.63, m; 2.26, dd (6.9, 12.9)	25.6	1.86, ddd (15.0, 13.2, 4.5); 1.97, brd (15.0)
7	64.8	4.61, t (8.8)	62.9	5.71, t (2.0)
8	127.8	-	122.7	-
9	168.5	-	175.9	-
10	41.6	-	42.2	-
11	68.0	4.55, dd (2.7, 17.2); 4.73, d (17.2)	68.5	4.81, dd (2.0, 17.1); 5.11, d (17.1)
12	172.9	-	171.8	-
13	33.1	1.02, s	32.7	0.93, s
14	21.4	0.97, s	21.1	0.91, s
15	21.1	1.33, s	20.1	1.13, s
1′	171.2	-	170.8	-
2′	57.7	4.43, dd (4.8, 8.2)	57.3	4.56, dd (4.6, 8.7)
3′	30.6	1.96, m	31.2	2.17, otc (6.8)
4′	17.5	0.85, d (6.8)	17.6	0.90, d (6.6)
5′	19.0	0.92, d (6.8)	19.0	0.95, d (6.6)
1′′	170.0	-	169.7	-
2′′	23.0	2.01, s	23.1	2.02, s
NH	-	5.78, d (8.2)	-	6.04, d (8.6)