Table 3.

NMR data for compounds 1 and 2 (MeOD, 600 MHz/150 MHz).

Position		1		2
		δH, Multiplicity (J in Hz)	δ C	δH, Multiplicity (J in Hz)	δ C
1	a	3.63, m	64.8 (CH2)	3.63, m	64.7 (CH2)
	b	3.80, m		3.80, m
2		3.79, m	70.3 (CH)	3.79, m	70.3 (CH)
3		3.69 m	72.7 (CH)	3.69, m	72.5 (CH)
4		3.48 m	70.4 (CH)	3.47, m	70.7 (CH)
5		3.87 m	70.0 (CH)	3.87, m	70.0 (CH)
6	a	4.16, m	67.7 (CH2)	4.18, m	67.8 (CH2)
	b	4.37, m		4.39, m
7		-	172.1 (C)	-	172.9 (C)
8		2.05, s	20.3–20.8 (CH3)	2.08, s	20.4 (CH3)
9		-	173.1 (C)	-	-
10		2.03, s	20.3–20.8 (CH3)	-	-
11		-	172.9 (C)	-	-
12		2.08, s	20.6 (CH3)	-	-
1′		-	172.3 (C)	-	172.3 (C)
2′	a	2.61, m	39.8 (CH2)	2.65, m	39.8 (CH2)
	b	2.65, m		2.65, m
3′		5.22, m	71.8 (CH)	5.23, m	71.7 (CH)
4′		1.61, m	34.7 (CH2)	1.62, m	34.8 (CH2)
5′		1.33, m	25.9 (CH2)	1.32, m	25.9 (CH2)
6′–13′		1.29–1.33, m	30.2–31.0 (CH2)	1.29–1.33, m	30.2–31.0 (CH2)
14′		1.29, m	32.9 (CH2)	1.29, m	32.8 (CH2)
15′		1.31, m	23.5 (CH2)	1.31, m	23.5 (CH2)
16′		0.90, t (6.9)	14.1 (CH3)	0.90, t (6.9)	14.2 (CH3)
17′		-	172.3 (C)		172.3 (C)
18′		2.02, s	20.8 (CH3)	2.02, s	20.8 (CH3)