Proton No.
S
1
S
2
S
3
S
4
S
5
1
1.72 0.98 m
-
-
1.70 1.00 m
1.73 1.01 m
2
2.10 1.85
-
-
2.07 1.85
2.12 1.87
3
3.87 m
3.03 m
3.42 m
3.98 m
3.93 m
4
2.74 m
2.77 m
2.71 m
6
5.37 br.s
5.33 br.s
5.32 br.s
5.32 br.s
5.38 br.s
7
1.35 1.35
-
-
1.50 1.50
1.90 1.51
8
1.50
-
-
1.51
1.54
9
0.89
-
-
0.90
0.90
11
1.45 1.45
-
-
1.45 1.45
1.45 1.45
12
1.73 1.13
-
-
1.73 1.12
1.70 1.10
14
1.08 2.09
-
-
1.07 2.07
1.10 2.10
16
4.50
-
-
4.38
4.51 m
17
1.87
-
-
1.85
1.83
18
0.88
0.66
0.69
0.88
0.88
19
1.04
0.96
0.95
1.04
1.06
20
1.91 m 1.09 d (
J
=7)
1.98 m 1.09 d (
J
=7)
2.01 m 1.17 d (
J
=7)
21
-
0.92 d (
J
=6.3)
0.98d (
J
=5.7)
-
-
22
-
-
5.16 dd (
J
=8.6,15.1)
-
-
23
1.73 1.73
-
5.02 dd (
J
=8.6,15.1)
1.73 1.73
1.70 1.70
24
1.65 1.65
-
-
1.63 1.63
1.65 1.65
25
1.48 2.77
-
-
1.50 2.77
1.48 2.83
26
2.82
0.81 d (
J
=6.3)
0.81 d
J
=5.7)
2.77
2.83
27
0.81 d (
J
=6)
0.90 d (
J
=6.3)
0.78 d (
J
=5.7)
0.82 d (
J
=6)
0.81 d (
J
=6)
29
-
0.78 t (
J
=6.3)
0.89 t (
J
=7.3)
-
-
1`
-
4.21 d (
J
=7.5)
4.21 d (
J
=7.8)
4.95 d (
J
=8)
4.93 d (
J
=8)
1``
-
-
-
6.39 br.s
6.23 br.s
1```
-
-
-
5.85 br.s
5.15 d (
J
=8)
Table 1:
1
H NMR chemical shifts (δ ppm) for compound S
1
(CDCl
3
, 300 MHz, J in HZ) and S
4
-S
5
(DMSO, 300 MHz, J in HZ)
