Table 1.

¹H (400 MHz) and ¹³C NMR (100 MHz) for the new compounds 1 and 2 in C₅D₅N.

1			2
Position	δH (mult., JHz)	δC	Position	δH (mult., JHz)	δC
1	4.43, dd (8.0, 4.8)	61.8	1a	4.32, m	68.2
2	5.12, dd (8.0, 4.8)	52.7	1b	4.59, m
3	4.29, m	76.5	2	5.29, m	50.4
4	4.62, m	72.7	3	4.39, m	76.5
5	1.25, m	30.2	4	4.28, m	72.3
6	1.25, m	30.0	5	1.27, m	31.9
7–14	1.25, m	29.7	6	1.27, m	30.2
15	1.25, m	29.9	7-18	1.27, m	29.9
16	1.25, m	22.7	19	0.85, t (6.8)	14.2
17	0.85, t (6.8)	14.1	1′	-	175.0
1′	-	175.0	2′	4.63, m	72.4
2′	4.37, m	72.2	3′	2.00, m	31.9
3′	2.05, m	30.2	4′	1.27, m	30.2
4′	1.25, m	30.0	5′–20′	1.27, m	29.9
5′13′	1.25, m	29.7	21′	0.85, t (6.8)	14.2
14′	1.25, m	22.7	NH	8.53, d (8.4)	-
15′	0.85, t (6.8)	14.1	1′′	5.61, d (3.4)	101.2
NH	8.59, d (8.4)		2′′	4.64, m	70.2
			3′′	4.50, m	71.6
			4′′	4.54, m	71.0
			5′′	4.50, m	73.1
			6′′	4.33, m	62.6