TABLE 1
1
H NMR of flunisolide and
∆
6
-flunisolide in chloroform-
d
3
Compound
H
1
H
2
H
4
H
6
H
7a
H
7b
H
11
H
16
H
21a
H
21b
ppm
Flunisolide
7.16, d
6.29, d
6.31, s
5.25, dd, 5.35, dd
1.31, ddd
2.47, ddd
4.49, ddd
5.04, dd
4.14, d
4.64, d
∆
6
-Flunisolide
7.23, d
6.31, d
6.32, s
—
5.61, d
—
4.54. ddd
5.07, dd
4.17, d
4.65, d