Table 4 NMR data for compound 3

1

163.7

–

–

2′

131.9

8.42, 1H, s

1, 3′, 3′a, 7′a, 1″

3′

110.0

–

–

3′a

126.5

–

–

4′

120.9

8.08, 1H, m

3′, 6′, 7′a

5′

120.8

7.16, 1H, m, overlapped

3′a, 7′

6′

122.1

7.17, 1H, m, overlapped

4′, 7′a

7′

110.8

7.53, 1H, m

3′a, 5′

7′a

136.0

–

–

1″

48.7

5.46, 2H, m

2′, 7′a, 2″, 3″/7″

2″

133.7, d, J = 3.0 Hz

–

–

3″/7″

129.3, d, J = 8.2 Hz

7.34, 2H, m

1″, 4″/6″, 5″

4″/6″

115.4, d, J = 21.3 Hz

7.16, 2H, m, overlapped

2″, 3″/7″, 5″

5″

161.5, d, J = 242.0 Hz

–

–

1‴

172.5

–

–

2‴

59.2

4.48, 1H, d, J = 9.6 Hz

1, 1‴, 3‴, 4‴/5‴/6‴

3‴

34.1

–

–

4‴/5‴/6‴

26.9

1.02, 9H, s

2‴, 3‴

1-CONH

–

7.25, 1H, d, J = 9.2 Hz

1, 1‴, 2‴

1‴-CONH₂

–

7.56, 1H, brs

1‴

–

7.11, 1H, brs

1‴, 2‴