TABLE 4.

¹H NMR spectral data of flocculosin

Protona	δ (ppm)
1-H	3.8 (d, 2 Hs, J = 10 Hz)
2-H	3.9 (m, 1 H)
3-H-17-H	1.3-1.5 (broad doublet, 30 Hs)
18-H	1.0 (t, 3 Hs, J = 7 Hz)
2′-H	3.9 (t, 1 H, J = 17 Hz)
3′-H	2.3 (m, 2 Hs)
4′-H	4.0 (m, 1 H)
5′-H	2.6 (d, 2 Hs, J = 4 Hz)
1′′-H	4.3 (d, 1 H, J = 8 Hz)
2′′-H	3.5 (dd, 1 H, J = 10 Hz)
3′′-H	3.6 (dd, 1 H, J = 10 Hz)
4′′-H	3.5 (dd, 1 H, J = 8 Hz)
5′′-H	3.6 (m, 1 H)
6′′-H	3.6, 3.9 (dd, dd, J = 6 Hz, J = 11 Hz, 2 Hs)
1′′′-H	4.6 (d, 1 H, J = 8 Hz)
2′′′-H	3.6 (dd, 1 H, J = 10 Hz)
3′′′-H	3.4 (dd, 1 H, J = 9 Hz)
4′′′-H	3.4 (dd, 1 H, J = 8 Hz)
5′′′-H	3.5 (m, 1 H)
6′′′-H	4.0, 4.3 (dd, dd, J = 6 Hz, J = 13 Hz, 2 Hs)
-OCOCH3	2.1 (s, 3 Hs)
-OCOCH3	2.2 (s, 3 Hs)

^aUnderlining indicates atom for which shift is given.