1289
Table 1
The
1
H-NMR and
13
C-NMR chemical shifts of compound
1
,
2
and
3
Proton
Position
Conpound
Carbon
Position
Compound
1
2
3
1
2
3
2
-
-
-
2
159.8 146.0 155.7
3
-
-
-
3
136.4 135.9 133.0
4
-
-
-
4
178.1 176.0 176.8
5
-
-
5
169.1 160.5 160.6
6
6.21 (d,J=1.53Hz) 6.25 5.95
6
98.1 98.1
98.2
7
-
-
-
7
166.2 163.7 163.6
8
6.43 (d,J=1.53Hz) 6.41 6.07
8
97.8 93.3
93.3
9
-
-
-
9
159.7 156.1 155.3
10
-
-
-
10
103.2 103.4 103.7
1
’
-
-
-
1
’
130.2 123.0 122.0
2
’
8.20 (dd,
J
=8.72Hz) 8.07 8.03
2
’
126.1 129.2 130.2
3
’
7.62 (dd,
J
=8.72Hz) 7.05 7.01
3
’
128.5 114.0 113.3
4
’
7.53
(m)
4
’
127.9 160.3 160.6
4
’
-OCH
3
(s)
3.81 3.80 4
’
-OCH
3
55.1
55.0
5
’
7.62 (dd,
J
=8.72Hz) 7.05 7.01
5
’
128.5 114.0 113.3
6
’
8.20 (dd,
J
=8.72Hz) 8.07 8.03
6
’
126.1 129.2 130.2
1
’’
(d,
J
=7.90Hz)
5.37
1
’’
100.34
2’’
(m)
3.21
2’’
73.67
3’’
(m)
3.30
3’’
76.0
4
’’
(m)
3.13
4
’’
69.4
5
’’
(m)
3.42
5
’’
76.4
6
’’
(m)
3.42
6
’’
60.5
