Table 1 ¹³ C NMR spectral data for compounds BG II (UFD)

1

-

-

2

-

162.24

3

6.83

112.51

4

7.47

140.86

5

6.40

122.43

6

7.55

131.20

7

-

158.15

8

7.20

106.37

9

-

116.48

10

-

153.06

1^I

5.27

103.80

2^I

4.31

82.31

3^I

3.80

72.68

4^I

3.68

69.88

5^I

4.81

77.89

6^I

-

61.05

1^II

4.99

99.61

2^II

4.02

72.80

3^II

3.73

71.53

4^II

3.62

68.91

5^II

4.48

74.04

6^II

3.04

60.72