Table 2 ¹H (600 MHz) and ¹³C NMR (150 MHz) data of 4–6 in CD₃OD (J in Hz).

172.6 (C)

170.8 (C)

173.0 (C)

105.9 (C)

76.1 (CH)

4.96 m

73.0 (CH)

5.08 m

166.4 (C)

33.8 (CH₂)

1.85 m;

33.4 (CH₂)

1.93 m;

101.9 (CH)

6.15 d (2.4)

1.76 m

1.66 m

21.6 (CH₂)

1.66 m;

22.5 (CH₂)

1.70 m;

164.1 (C)

1.42 m

1.60 m

34.0 (CH₂)

1.74 m;

31.4 (CH₂)

2.15 m;

112.7 (CH)

6.19 d (2.4)

1.69 m

1.99 m

70.8 (CH)

5.52 m

129.8 (CH)

5.49 dt (15.7, 6.3)

144.6 (C)

50.1 (CH₂)

2.99 dd (13.4, 3.0);

133.4 (CH)

5.35 dt (15.7, 5.2)

24.6 (CH₃)

2.45 s

2.63 dd (13.4, 10.3)

207.3 (C)

74.9 (CH)

4.05 m

51.0 (CH₂)

4.77 d (18.5);

43.6 (CH₂)

3.11 d (18.8);

3.77 d (18.5)

2.82 d (18.8)

139.6 (C)

140.8 (C)

114.1 (CH)

6.13 d (2.5)

111.1 (CH)

6.25 d (2.4)

163.9 (C)

161.2 (C)

103.1 (CH)

6.25 d (2.5)

102.3 (CH)

6.19 d (2.4)

166.4 (C)

ND^a

106.9 (C)

115.1 (C)

21.2 (CH₃)

1.32 d (6.1)

19.0 (CH₃)

1.31 d (6.4)

176.0 (C)

62.4 (CH₂)

4.47 m

68.1 (CH)

4.25 dd (13.8, 6.9)

34.4 (CH₂)

2.24 m;

2.06 m

20.6 (CH₃)

1.37 d (6.9)

68.9 (CH)

4.32 m

176.1 (C)

52.7 (CH₃)

3.68 s