Table 3 ¹³ C and ¹ H NMR spectral date of Gln-V and PP-V

2

171.7

171.2

3

97.8

97.5

3a

169.0

168.6

4

96.1

6.45(1H, s)

95.7

6.49(1H, s)

4a

152.9

152.5

5

123.0

7.12(1H, s)

122.5

7.16(1H, s)

6

152.0

151.4

8

143.9

8.34(1H, s)

143.3

8.37(1H, s)

8a

118.5

117.9

9

197.9

197.4

9a

85.0

84.6

9a-CH3

30.9

1.46(3H, s)

30.4

1.50(3H, s)

10

135.4

6.76(1H, d, J = 13.0)

134.7

6.78(1H, d, J = 13.2)

11

131.2

6.76(1H, d, J = 13.0)

130.9

6.09(1H, d, J = 13.2)

12

167.1

166.8

13

193.9

193.5

14

39.7

2.63(2H, t, J = 7.3)

39.2

2.65(2H, t, J = 7.3)

15

25.2

1.44(2H, quintet, J = 7.3)

24.7

1.46(2H, quintet, J = 7.3)

16

29.6

1.20-1.23(8H, m)

29.1

1.23-1.25(8H, m)

17

29.2

1.20-1.23(8H, m)

28.7

1.23-1.25(8H, m)

18

30.8

1.20-1.23(8H, m)

31.8

1.23-1.25(8H, m)

19

22.6

1.20-1.23(8H, m)

22.1

1.23-1.25(8H, m)

20

14.5

0.82(8H, t, J = 7.0)

14.0

0.84(8H, t, J = 7.0)